CO (carbon monoxide) and CO2 (carbon dioxide) are both colourless, odourless gasses. However, they are chemically different: CO is one oxygen atom bound to one carbon atom, while CO2 is two oxygen atoms bound to one carbon atom.
CO2 is a product of many natural processes in the human body, and is safe at normal levels. Due to the similarity in their chemical structure, however, CO is a dangerous gas, toxic even at low levels.
Chemical structure of CO vs CO2
What is CO?
Carbon Monoxide is released during ‘incomplete combustion’. This usually happens when a fuel, such as coal, wood, or oil, is burned without enough oxygen present. This deadly gas is dangerous even at very low levels. Because its molecules are very similar in structure to CO2, they bind to red blood cells in the body and become ‘stuck’. As a result, the amount of oxygen that can be transported to the body’s essential organs is reduced. This lack of oxygen can cause fatigue, breathlessness, headaches, and eventually death.
Levels as low as 50ppm (parts per million) will cause harm, particularly with prolonged exposure, while 700ppm can quickly be fatal.
Any level of CO therefore warrants concern, which can only be detected with a working carbon monoxide detector.
What is CO2?
Carbon Dioxide is released by many natural chemical processes, including combustion, respiration, and decomposition. CO2 is used to give fizzy drinks their bubbles, and as a medium in some fire extinguishers. It’s also present in the air we breathe, where it safe at normal levels (under 800ppm). However, at extreme levels, CO2 can cause asphyxiation by reducing the level of oxygen available.
Both CO and CO2 can cause headaches
CO2 and indoor air quality
Although carbon dioxide is naturally present in the air, high levels can have negative effects on human health. Poor ventilation in an enclosed environment can lead to raised CO2 levels. This often leads to headaches, fatigue, and poor concentration. Safe indoor levels are below 800ppm; in classrooms, offices, and other public venues, levels can easily reach over 1000ppm.
You can improve indoor air quality by opening windows to improve ventilation, installing air purifiers, and reducing damp / humidity with dehumidifiers. Measuring CO2 levels with an indoor air quality monitor is the best way to track this, and know when improvements need to be made.
Detecting CO vs CO2
Carbon monoxide detectors should be installed to detect the presence of CO. Without this, it is impossible to detect the presence of this deadly gas, which is dangerous even at low levels. A CO alarm with a digital display allows users to monitor levels which are too low to trigger the alarm, encouraging them to improve ventilation.
Carbon Dioxide detectors have traditionally been used in commercial premises like breweries or laboratories, where fatal levels of CO2 might be released by chemical reactions. While CO2 poisoning is unlikely to happen in a home environment, however, new technology has made these detectors more affordable and accessible. CO2 monitors are now recommended in schools, offices, and even homes to track and improve indoor air quality.
CO vs CO2: both are colourless, odourless gasses, which pose different health risks. The only way to stay safe from these gasses is to make sure you have the appropriate detector fitted. For additional support in selecting the best detector for your needs, contact our friendly customer support team on 0800 612 6537.
Fire doors are usually heavier than non-fire rated doors due to their flame-resistant construction. However, because doors are hung on hinges, the force required to open day-to-day wouldn’t be noticeably greater than opening a ‘normal’ door. Fire doors feel heavy because of the door closers attached to them. These are installed to ensure that the fire door is kept shut when not in use, and are shut in the event of a fire.
Can fire doors be held open?
For people with mobility issues, heavy fire doors can be challenging. It can be tempting to deactivate door closers or prop fire doors open. However, this is unsafe, as it could allow a fire to spread through a building uncontrolled. Responsible Persons therefore have a legal duty to ensure that door closers are effective and maintained.
To overcome this issue, safe and legal ‘hold open’ devices have been developed. These can be installed during construction or retrospectively to improve accessibility for disabled people, older people, and young children.
According to the Equality Act 2010, employers have a duty to make reasonable adjustments where necessary for anyone with a disability. Under the same act, landlords are required to make reasonable changes to accommodate disabled tenants, and can access funding to do so. Installing hold open devices is a simple solution to heavy fire doors, which improves accessibility.
Wheelchair users often struggle with heavy fire doors
Holding open fire doors for people with disabilities
Fire door retainers improve accessibility for people with mobility issues, older people, and young children. Some devices attach to a fire door and an adjacent wall, allowing it to be ‘held’ in the open position through electromagnets. Other devices use a ‘plunger’ at the bottom of the door to fix the door open. When the fire alarm is activated, the devices are deactivated and the door closer will shut the door. Different devices detect this activation either through sound, or electronically.
Hold open devices for heavy fire doors are particularly useful in care homes, where beds and wheelchairs are transferred between rooms. This can also improve independence for those with frailty and weakness associated with ageing in a care setting.
How to make heavy fire doors easier to open
As an alternative to fire door retainers, electronic fire door closers have been developed to reduce the force needed to open the door during normal use. This can make heavy door easier to open.
When ‘on’, these devices have a significantly reduced closing force, allowing the door to swing freely, like a normal door. When the fire alarm is activated, as with traditional retainers, the free swing function will deactivate, causing the fire door closer to shut the door.
Heavy fire doors can cause issues for lots of people, particularly those who are less mobile. Installing hold open devices, such as free swing door closers or fire door retainers, helps to improve accessibility. If you are unsure which device is most suitable for your needs, or would like to book a site survey for one of our retaining systems, call our friendly and knowledgeable fire door team at 0800 433 4289 or email firedoors@safelincs.co.uk.
How heavy is a fire door?
Standard internal doors in a house usually weigh between 20kg and 50kg. Fire rated doors are often much heavier due to their reinforced construction. An average FD30 (30 minute) fire door weighs around 45kg, while FD60 (60 minute) fire doors can be over 75kg.
What is the difference between fire doors and fire exits?
A fire door is an internal door, between one room or corridor and another. Certified fire doors of solid timber construction are designed to halt the spread of smoke and flames for a minimum specified length of time. Typically, this is 30 minutes (FD30), when closed. This allows fire doors to compartmentalise the building, so that the fire can be more easily controlled by fire fighters.
A fire exit is a final exit door from a building, meaning that it leads to the outside. These doors are not usually fire rated, as they are not designed to hold back flames and smoke. Fire exit doors are designed to allow quick and unhindered escape through a well-lit door into a place of safety. Often, these doors also prevent unauthorised access from the outside. Fire exit doors should never be obstructed, open easily and, where possible, in the direction of traffic flow.
In an emergency, fire exit doors lead building occupants to a place of safety
Do final exit doors need to be fire rated?
Final exit doors, or fire exits, do not usually need to be fire rated, unless the need is identified by the fire risk assessment. Unlike fire door hardware, exit hardware, such as panic bars and push pads, therefore does not need to be fire rated. Nonetheless, exit hardware must be regularly tested and maintained so that it can be effective in an emergency.
Should fire exits have push pads or panic bars?
In environments like an office, where staff are familiar with the layout, it is permissible to install push pads. In buildings which are open to the public, such as cinemas and shops, fire exits doors must be fitted with panic bars. These are easier to operate for someone who is unfamiliar with the environment.
Fire exit doors which are security doors can be locked to the outside
Can a fire exit be locked?
For security reasons, fire exits can be locked to the outside with an external access device. This can be secured with a traditional lock and key, or a pin pad and code. However, fire exits which serve as emergency exits for the public can never be locked from the inside. Exit hardware (push pads or panic bars) must therefore be fitted to the inside of a fire exit door.
Fire doors to storage rooms, or restricted areas of a building, can be locked. This can be done with access control devices, or a fire rated lock and key system. This hardware must be installed by a qualified professional, to the manufacturer’s requirements. It is the responsibility of key holders to ensure that no one is ever locked in to an area that they cannot freely leave.
Can a fire exit door be left open?
Given that fire exits are not involved in compartmentation, it is not a fire risk to keep open a final exit door to a building. This is why fire exit doors do not have door closers fitted. Fire doors must be kept shut when not in use, so that they can be effective in the event of a fire. This has led to the common misconception that a fire exit door cannot be kept open.
Therefore, assuming it is not a security risk, it is permissible to prop open a fire exit; but never a fire door on an escape route (unless certified fire door retainers are installed).
Signage for fire exit doors is green, and should be well lit
Do fire doors need signage?
Fire doors should have a small blue Fire Door Keep Shut sign fitted on both sides. This informs building users, including staff and the public, that the door plays a role in fire safety, and encourages them to behave accordingly. For the purpose of fire risk assessments, fire door maintenance, and fire escape plans, the fire door’s certification sticker should also be located on its top edge.
Similarly, fire exits should be clearly marked to ensure that occupants of a building can quickly identify an escape route in an emergency. Best practice dictates that fire exit signs are fitted above fire exits. In larger and more complicated buildings, additional signage should be fitted to direct occupants to the nearest fire exit.
HMOs are typically large houses that have been converted into flats or bedsits, such as student housing. ‘Houses in multiple occupation’ are defined by gov.uk as follows:
Your home is a house in multiple occupation (HMO) if both of the following apply:
at least 3 tenants live there, forming more than 1 household
you share toilet, bathroom or kitchen facilities with other tenants
It is important to note that the requirements for sheltered housing, such as supported living facilities, and self-catered rentals, such as holiday cottages are different, and not covered in this blog.
Shared kitchen spaces are a fire risk in HMOs
What grade of smoke alarm system is required for HMOs?
Within most HMOs, there are several acceptable options available for compliance with the Standard, depending on its size and configuration.
The first option is to have Grade A fire alarm system installed throughout the building. This type of system consists of a conventional or addressable fire alarm panel, and then fire alarm detectors, call points, sounders and beacons are specified according to the layout and requirements of the property and manufactured to BS EN 54. It also requires a power supply to BS EN 54-4, and installation to BS 5839 Part 1.
However, in most cases, this level of coverage is not a requirement. In some small HMOs, for example, it may be acceptable to install a Grade D1 system. This is defined as a system incorporating one or more interlinked mains-powered smoke alarms (and heat alarms if required), each with an integral stand-by supply. They can be hardwire-interlinked or radio-interlinked, meaning that fire alarm panels are not required. The stand-by supply must be tamper-proof and last the full life of the alarm.
The final option, suitable for many medium and even large HMOs, is a mixed system. This involves the installation of Grade A components in communal areas, and any other high-risk areas identified by the risk assessment. Elsewhere in the premises, a separate Grade D1 system can be installed. This has become the preference, as it is likely to reduce the impact of nuisance alarms from individual flats on other occupants.
Ei Electronics and Kidde offer both RF and wired mains powered alarm systems as well as a range of accessories that can help you to test, locate and hush alarms easily. For more guidance about the alarm grade system, visit our help guide.
The coverage within the building by the detection system is divided into three distinct categories. These are described with the following codes:
LD1 (highest level of coverage): Covers all circulation spaces that form part of escape routes plus all rooms in which a fire could start
LD2 (middle level of coverage): Covers all circulation spaces that form part of escape routes plus all rooms and areas that present a high fire risk to occupants
LD3 (lowest level of coverage): Covers circulation spaces that form part of the escape routes
Any room which a building user must pass through, from another, in order to exit the premises would need detectors installed to satisfy these Categories. For example, if all rooms in a bungalow open onto a hallway which leads outside, only the hallway is considered a circulation space forming part of the escape route; if the only exit from the kitchen is into the dining room which then opens onto a hallway, the dining room would also need a detector under LD3 minimum protection as it is part of the escape route.
What category of fire detection is required within my HMO?
Different levels of coverage are needed in different areas of the building due to the risk of fire. This includes different Grades of fire detection system, as well as different configurations of components. For example, communal areas in HMOs are required to have Grade A systems, as they have particularly high levels of risk. This is due to the shared, and therefore often neglected responsibility for safety and housekeeping in HMOs. Moreover, the exact installation requirements within your HMO will depend upon the configuration and size of the premises. For more advice for landlords about fire safety in HMO’s, visit our help guide.
Responsibility for housekeeping can be neglected in HMOs. This is a fire risk,
Minimum levels of requirements for fire detection systems in HMOs:
The following is general guidance on the minimum levels of installation required in different scenarios.
One or two storey HMOs, where the area of each floor is less than 200sqm:
A Grade D1, category LD1 configuration should be installed in a new, or materially altered HMO. In an existing premises of this size, category LD2 is acceptable if it is already installed, but an LD3 system must be upgraded to comply with the Standard.
Areas within HMOs with more than 3 floors, or where the area of at least one floor is greater than 200sqm
Individual, one-room dwellings, with or without cooking facilities:
A Grade D1, category LD1 configuration should be installed. This is required in a new and existing HMO premises.
Individual dwellings comprising two or more rooms:
A Grade D1, category LD2 configuration should be installed. This is required in a new and existing HMO premises.
Communal areas
A Grade A, category LD2 configuration should be installed. This is required in a new and existing HMO premises.
Suitable Fire Detection Systems in HMOs
Always ensure that a comprehensive fire risk assessment has been carried out in your property by a competent person, to determine the risks specific to your premises. This is essential to protect the occupants, particularly as many tenants of HMOs are young and / or vulnerable renters. The Responsible Person for the building may be prosecuted if they cannot demonstrate that they have made every reasonable effort to comply with fire safety requirements enforced by their local council, particularly if a fire breaks out. Compliance with the Standards is the best way to ensure that this compliance can be achieved and evidenced.
HMO fire alarm requirements vary depending on the size and configuration of your property. For one or two-storey HMOs with floor areas less than 200sqm, you’ll need at minimum a Grade D1, category LD1 system for new or materially altered properties. This includes interlinked mains-powered smoke alarms with integral stand-by supplies. Existing properties of this size may maintain a category LD2 system if already installed, but any LD3 systems must be upgraded. For larger HMOs with more than 3 floors or floors exceeding 200sqm, communal areas require Grade A, category LD2 systems. Your specific HMO fire alarm requirements will be determined by a comprehensive fire risk assessment.
What are the HMO fire alarm testing requirements?
HMO fire alarm testing requirements state that all fire detection systems must be regularly checked to ensure proper functioning. As a landlord or property manager, you must ensure your HMO fire alarm testing requirements are met by conducting regular checks of all detection devices. Each alarm should be tested according to manufacturer guidelines, typically by pressing the test button to confirm the alarm sounds correctly. You must maintain a testing log that records dates, results and any issues identified. This documentation is crucial for demonstrating compliance with HMO fire alarm testing requirements during inspections by local authorities.
What are the HMO fire alarm system requirements?
HMO fire alarm system requirements specify that properties must have appropriate detection systems based on size and layout. For most HMOs, you have several options to meet the HMO fire alarm system requirements. You can install a Grade A system throughout (connected to a central panel), a Grade D1 system (interlinked mains-powered alarms with backup), or a mixed system with Grade A in communal/high-risk areas and Grade D1 elsewhere. Your HMO fire alarm system requirements will also include specific detection categories: LD1 (all circulation spaces and rooms), LD2 (circulation spaces and high-risk areas), or LD3 (circulation spaces only). The appropriate level depends on your property’s specific characteristics.
What are the three storey HMO fire alarm requirements?
Three storey HMO fire alarm requirements typically necessitate a more comprehensive detection system due to increased evacuation challenges. If your three storey HMO has floor areas exceeding 200sqm, communal areas must have a Grade A, category LD2 system with a central control panel. Individual dwellings within your three storey HMO should have Grade D1 systems – category LD1 for single-room dwellings and category LD2 for multi-room dwellings. These three storey HMO fire alarm requirements aim to provide early warning throughout the property, particularly in escape routes and high-risk areas like kitchens, where fires commonly start in shared accommodations.
What are the HMO fire detection requirements?
HMO fire detection requirements specify the type, grade and category of detection systems needed in your property. Your HMO fire detection requirements will vary based on your property’s size and configuration. For smaller HMOs (one or two storeys under 200sqm), a Grade D1 system with LD1 or LD2 coverage is typically required. For larger properties, communal areas need Grade A systems with LD2 coverage. The HMO fire detection requirements also specify that all escape routes must be covered by appropriate detection devices. Different types of detectors (smoke, heat or combined) may be needed in different areas based on the specific fire risks identified during your assessment.
What are the HMO smoke alarm requirements?
HMO smoke alarm requirements mandate that appropriate detection devices be installed throughout your property. Your HMO smoke alarm requirements will include using interlinked alarms, ensuring that when one detector is triggered, all alarms sound throughout the property. For most HMOs, mains-powered smoke alarms with battery backup (Grade D1) are required in escape routes and risk areas. The HMO smoke alarm requirements also specify that different detector types should be used in different locations – for example, heat detectors rather than smoke alarms in kitchens to reduce false alarms. All devices must comply with relevant standards, including BS EN 54 for manufactured components and BS 5839 Part 1 for installation.
What are the 2 storey HMO fire alarm requirements?
Two storey HMO fire alarm requirements typically specify a Grade D1, category LD1 system for new or altered properties. This means your 2 storey HMO fire alarm requirements include installing interlinked, mains-powered smoke alarms with integral stand-by power supplies throughout circulation spaces and all rooms where a fire could start. For existing 2-storey HMOs with floor areas less than 200sqm, a category LD2 system may be acceptable if already installed. Your 2 storey HMO fire alarm requirements aim to ensure all occupants receive early warning of fire, particularly important in shared accommodations where responsibility for fire safety can be fragmented.
What is the HMO fire alarm system cost?
HMO fire alarm system cost varies depending on the size of your property and the grade of system required. For a smaller HMO requiring a Grade D1 system, your HMO fire alarm system cost might start from approximately £300-£600 for the basic components, including interlinked mains-powered smoke alarms with battery backup. For larger properties requiring Grade A systems with control panels, your HMO fire alarm system cost could range from £1,000 to several thousand pounds. Additional factors affecting your HMO fire alarm system cost include installation, which should be carried out by qualified professionals, and ongoing maintenance expenses. While this represents a significant investment, it’s essential for legal compliance and tenant safety.
What is the HMO fire alarm testing frequency?
Your HMO fire alarm testing frequency should include weekly tests of the system by pressing the test button on at least one detector (on a rotational basis). Monthly checks should examine the control panel (if installed) for fault indicators. Your HMO fire alarm testing frequency should also include bi-annual professional servicing by qualified technicians, who will conduct more thorough examinations of all components. This HMO fire alarm testing frequency ensures continuous protection for tenants and helps identify issues before they compromise safety.
Are HMO smoke alarms in bedrooms required?
HMO smoke alarms in bedrooms are typically required as part of a comprehensive fire detection system. You should install smoke alarms in HMO bedrooms because these areas contain potential fire hazards, such as electrical equipment and are occupied during sleeping hours when occupants are most vulnerable. The HMO smoke alarms in bedrooms should be interlinked with all other alarms in the property, ensuring that a fire detected in any location will trigger all alarms. For grade D1 systems, these HMO smoke alarms in bedrooms should be mains-powered with battery backup. This requirement is particularly important in buildings with multiple occupants who may be unfamiliar with escape routes.
What is a Grade A fire alarm system in an HMO, and when is it required?
A Grade A fire alarm system in an HMO is a comprehensive detection setup that includes a central control panel connected to various detection devices throughout the property. You would need a Grade A fire alarm system in an HMO with more than three floors or where any floor exceeds 200sqm in area. A Grade A fire alarm system in an HMO must be installed in communal areas of these larger properties, providing category LD2 coverage (all circulation spaces and high-risk areas). The system components must be manufactured to BS EN 54 standards, with installation following BS 5839 Part 1 guidelines. A Grade A fire alarm system in an HMO offers enhanced monitoring capabilities and reliability for larger shared accommodations.
Do I need a fire alarm in an HMO?
Yes, you absolutely need a fire alarm in an HMO – it’s a legal requirement for all houses of multiple occupation. The specific type of fire alarm in an HMO that you need depends on your property’s size and configuration. At a minimum, you’ll need interlinked smoke detectors covering escape routes, with additional detectors in high-risk areas and potentially in all rooms for larger properties. Failure to install an appropriate fire alarm in an HMO can result in significant penalties, including fines and prohibition notices that prevent you from renting your property.
Is a fire risk assessment a legal requirement for HMOs?
Yes, a fire risk assessment is a legal requirement for HMO properties under the Regulatory Reform (Fire Safety) Order 2005. You must ensure that a fire risk assessment is completed for HMO compliance as it is a legal requirement. This assessment should be conducted by a competent person who can identify specific hazards in your property. The fire risk assessment is a legal requirement for HMO owners to protect tenants and demonstrate due diligence to authorities. It must be reviewed regularly and updated whenever significant changes occur to the property or occupancy. The assessment should identify potential fire hazards, evaluate who might be at risk, and determine what fire safety measures are needed to achieve compliance.
According to the National Fire Protection Association (NFPA), cooking equipment is the leading cause of house fires, with unattended cooking being the primary culprit. Cooking oil fires, in particular, pose a unique challenge due to the intensity and rapid spread of the flames.
Cooking oil fires are difficult to extinguish if you don’t have the right equipment at hand. The powerful jet of some fire extinguishers could spread the oil fire. Using water to extinguisher oil fires can cause the fire to erupt violently. Therefore, it is important to have the correct equipment to tackle kitchen fires
Tackling Cooking Oil Fires at Home
How to put out a Cooking Oil Fire
Pan fires can be tackled with fire blankets and fire extinguishers. A water mist fire extinguisher is versatile, and therefore can tackle all types of kitchen fire including fires involving electrical equipment up to 1000 volts. A fire blanket is a good option for most domestic kitchens, as generally smaller amounts of oil are used. A fire blanket is placed over the pan fire to smother it and starve the fire from oxygen.
For larger deep fat fryers in your home, we would recommend a wet chemical fire extinguisher which holds a 25F rating. The wet chemical extinguisher is made specifically for tackling larger quantities of oil on fire.
Where to put a Kitchen Fire Extinguisher
In the case of cooking oil fires, having a fire extinguisher within easy reach can be a lifesaver. Mount the extinguisher in a visible and easily accessible location, away from the stove but still within close proximity to the cooking area. We recommend placing your fire extinguisher near the kitchen exit, ensuring a quick and unobstructed path to safety. Avoid placing it too close to potential fire hazards, such as curtains or wooden cabinets.
Tackling Cooking Oil Fires at Work
If you work in a commercial kitchen with deep fat fryers, a wet chemical kitchen fire extinguisher is usually recommended. Wet chemical fire extinguishers are specifically designed to put out cooking oil fires and therefore should be kept in kitchens for commercial use. The wet chemical fire extinguisher forms a foam blanket on top of the oil which stops the supply of oxygen, therefore extinguishing the fire. Fire blankets are also a useful addition in a commercial kitchen as they can be used on pan fires, cooking oil fires, waste basket fires and also clothing fires.
What to do in a Kitchen Fire
Stay calm
Turn off the heat source (if possible)
If the fire is not too big, use your fire extinguisher or fire blanket to try and extinguish the fire
Call emergency services
Move anything else that could catch fire away from the burning oil if you can
Make sure children and pets do not come near the fire
A man cooking starts a cooking fire.
How can Cooking Oil Fires be Prevented?
To avoid cooking oil fires, never leave cooking unattended and pay attention to cooking pans and deep fat fryers at all times, especially when cooking with oil. Keep the area clean from grease buildup, as accumulated grease can be a potential fuel source for fires. In the event of a small grease fire, never use water to extinguish it. Instead, cover the pan with a fire blanket or use a fire extinguisher for kitchen fires. By adopting these preventive measures, you can significantly reduce the likelihood of cooking oil fires and enhance the overall safety of your kitchen.
For further advice on fire prevention in your home, complete the Home Fire Safety Check. Get personalised tips and a fire safety action plan to help you and your family to stay safe.
Conducting regular fire drills in the workplace is essential in order to practice for a safe evacuation during a fire. Fire drills go beyond compliance with regulations; they are the heartbeat of safety culture within organisations. Not only do they ensure that all staff, customers and visitors to your premises understand what they need to do if there is a fire, but they also help you to test how effective your fire evacuation procedure is.
What is a fire drill?
A fire drill is an organised procedure to simulate the steps you should take in the event of a fire. Its primary function is to ensure that all individuals in the building are familiar with escape routes, emergency exits and safety protocols. A fire drill educates and prepares occupants for a swift evacuation in the event of a real fire. A fire drill usually involves sounding the alarm system, evacuation to designated assembly points and coordination with emergency responders.
Regularly practicing fire drills enhances your readiness and response in the event of a real fire, which contribute to a safer environment for everyone involved.
Life or death
Imagine a fire starts. The company does not conduct regular fire drills. Everyone is panicking and doesn’t know what to do as part of the fire evacuation procedure. However, an organisation or even a household that conducts regular fire drills remains calm. Instinct kicks in from the fire drill practice to follow the fire evacuation procedure. This can be the difference between life and death.
‘You need to train new staff when they start work and tell all employees about any new fire risks.
You should carry out at least one fire drill per year and record the results. You must keep the results as part of your fire safety and evacuation plan.’ GOV UK
Testing Safety Equipment
Your fire drill not only gives people a routine to ensure their safety, it also gives you the opportunity to make sure essential fire safety equipment is in working order. Fire safety equipment includes alarm systems, fire door retainers, emergency lighting and evacuation equipment. In the event of a real emergency, all fire safety equipment must be working to evacuate timely and to prevent the spread of fire.
If, while undergoing a fire drill, you find that your fire safety equipment isn’t working; get it fixed or replaced as soon as possible to give your business the best chance of being protected.
How often should you do fire drills?
Yearly fire drills are a legal requirement for all businesses. However, Health and Safety Executive (HSE) recommends having a few fire drills each year to enhance safety measures and better prepare for potential emergencies. While the minimum legal standard is an annual fire drill, more frequent exercises, such as quarterly or semi-annual drills, can significantly improve the effectiveness of emergency response plans.
Fire Drill Roles & Responsibilities
Designating key roles to individuals during your fire drills helps streamline the evacuation. Fire Wardens oversee the evacuation process and check designated areas, while Evacuation Marshals are responsible for guiding people to safety. Someone should also be assigned to account for all individuals at the assembly points to ensure that everyone has safely evacuated the building. Clearly defining roles and responsibilities in advance ensures confidence in individuals that there is a well-coordinated plan in place.
Gas boilers, heaters, fires and cookers are common in households across the UK. However, many people are unaware of the dangers of poor maintenance of this type of appliance. Is your home gas safe?
Dangerous gas appliances
Faulty gas appliances can produce toxic carbon monoxide gas as a result of incomplete combustion. Carbon monoxide is odourless and colourless meaning that without a detector, its presence cannot be identified. Even if your gas burning appliances are regularly serviced by a qualified engineer, it is possible for faults to occur. Alongside maintaining household appliances, the best way to keep your home gas safe is to install a CO alarm.
Carbon Monoxide emissions from a poorly fitted, poorly ventilated or faulty gas appliance can be deadly. On average, 50 people in the UK are killed each year by CO poisoning, with 4,000 admitted to hospital. There are also an unknown number of people who have suffered some degree of carbon monoxide poisoning, and either do not report it or are mis-diagnosed as the symptoms are very similar to common flu.
Dangers of unqualified gas fitters
The Gas Safe Register has highlighted the dangers of unqualified fitters, reporting that when inspected by a registered Gas Safe Engineer, 79% of boilers originally installed by unqualified fitters are putting occupants at risk, or are classified as immediately dangerous. Similar statistics published by Gas Safety Week show that half of all gas fires inspected by a registered Gas Safe Engineer are unsafe.
The Gas Safe Register logo is recognisable
Maintaining gas appliances
If you have a gas appliance, you should have it serviced every year. Always ensure that repairs or new installations are only carried out by a qualified and registered Gas Safe Engineer. Regular servicing is the best way to prevent faults, and keep your family safe from deadly CO gas. Check to see if loved ones and vulnerable friends or neighbours have an up to date gas safety certificate.
Only registered Gas Safe engineers should service the gas burning appliances in your home
The Gas Safety watch dog is urging consumers to always check the credentials of any gas fitter. This should always be done before allowing them to do any work on a gas appliance. They are also asking the public to inform them of any rogue installers who are claiming to be qualified, but do not appear on the Gas Safety Register.
Get gas safe – Importance of installing CO alarms
You should always install a carbon monoxide alarm to protect your household from the risk of carbon monoxide poisoning, especially because carbon monoxide can travel through adjoining walls. Therefore, even if you don’t have any gas appliances, or are certain that every appliance in your home is gas safe, a detector is the only way to have complete peace of mind.
Many detectors have a long life, and so remain reliable for up to a decade. With options for audio and visual cues, there is an alarm suitable for everyone. Check that every CO alarm in your home is marked BS EN 50291 and displays the British Standards’ Kitemark. If you can’t see these markings, or need to replace an old device, you can find a selection of CO alarms on our website that are suitable for use at home.
Both foam and powder extinguishers are commonly found in workplaces and public spaces across the UK, but which is best? Both types of extinguisher are suitable for use on most common fire risks, making them versatile, and a popular choice. Selecting the best fire-fighting solution for your organisation can be difficult and will depend on the type of environment and risks that exist.
Powder extinguishers are best suited to outdoor areas
Powder Fire Extinguishers
As the name suggests, powder extinguishers contain a dust like powder, which when discharged, forms a thin layer on top of the burning fuel. This layer absorbs heat and deprives the fire of oxygen, which prevents the continuation of the chemical process of combustion.
Powder fire extinguishers are available in a range of sizes
Pros of Powder Extinguishers
Powder extinguishers are versatile, being suitable for Class A, B, C fires and fires involving electrical equipment
Fluorine-Free
Powder units can be up to twice as effective against class A fires as foams
Does not freeze so can be used outside all year round
Britannia Fire has launched two eco-foam P50 Service-Free Fire Extinguishers: A-Foam and B-Foam. Like AFFF Foam, the medium in these units works by covering the fire, and forming a seal that cuts off the oxygen supply, and has a cooling effect.
Pros of Foam Extinguishers
Suitable for indoor use
Fluorine-Free
Suitable for indoor workplace environments with class A, B and live electrical equipment risks (select either A or B foam depending on the amount of class A or B risk)
Water Mist Fire Extinguishers – an Alternative to Powder and Foam
Water mist fire extinguishers are 100% environmentally friendly, as they contain only de-ionised water. Upon discharge, water mists therefore release no harmful substances, and leave no messy residue to clean up. The water they contain is de-ionised, and so does not conduct electricity. This means that they are also safe for use on live electrical equipment, making them an ideal replacement for the AFFF foam extinguishers.
An alternative solution to foam or powder fire extinguisher
Foam vs Powder Extinguishers – Which Extinguisher Should I Choose?
In premises where the fire risk assessment has identified only Class A and/or Class B risks plus fires involving electrical equipment, there are several types of fire extinguisher which may be suitable:
Ultimately, the type of extinguisher that needs to be installed on a premises will be determined by the risks identified by the fire risk assessment. Where there is overlap, and more than one type of extinguisher would be suitable, it is up to the responsible person to ensure that they have selected the most effective and appropriate fire-fighting solution for their organisation or property.
Powder extinguishers are often best for outdoor environments where there is a mixed fire risk. Water mist or eco-foam extinguishers are ideal for indoor spaces with common fire risks.
A powder extinguisher is used for tackling multiple types of fires. These versatile fire-fighting tools can extinguish Class A fires (involving solid materials like wood and paper), Class B fires (involving flammable liquids), Class C fires (involving gases), and fires involving live electrical equipment up to 1000V at a distance of 1m. When you discharge a powder extinguisher, it forms a thin layer on the burning fuel that absorbs heat and deprives the fire of oxygen, stopping the combustion process. Powder extinguishers are best suited for outdoor environments due to their messy discharge and potential respiratory irritation.
How many types of fire extinguishers are there?
There are several types of fire extinguishers available, each designed to combat specific fire risks. The main types include water, water mist, foam, powder, CO2 and wet chemical extinguishers. Each type works differently and targets specific fire classes. When selecting which of these types of fire extinguishers to install, you should always base your decision on the fire risk assessment for your premises. The number of types of fire extinguishers you might need depends on the various fire risks present in your environment, with some locations requiring multiple types for comprehensive protection.
How do water fire extinguishers work?
Water fire extinguishers work by cooling the burning material below its ignition temperature. When directed at a Class A fire (involving solid materials like wood, paper and textiles), the water absorbs heat from the fire, reducing the temperature and eventually extinguishing the flames. Traditional water extinguishers are not usually suitable for electrical fires as water conducts electricity, but specialised water mist extinguishers use de-ionised water that doesn’t conduct electricity, making them safe for use on electrical equipment. Understanding how water fire extinguishers work helps you determine when they’re appropriate to use in an emergency situation.
Which type of fire extinguisher should you use on live electrical equipment?
When dealing with fires involving live electrical equipment, you should use either a CO2, powder or any water-based extinguisher that has passed a di-electric test in accordance with BS-EN3. Essentially if an extinguisher is marked with the electrical symbol on the front or says it has been di-electrically tested, it is suitable.
What type of fire is a CO2 fire extinguisher used for?
A CO2 fire extinguisher is used for Class B fires involving flammable liquids and fires involving live electrical equipment. The type of fire a CO2 fire extinguisher is most effective against includes those involving electrical equipment, computers and other sensitive electronics where other extinguishing agents might cause damage. CO2 works by displacing oxygen, which starves the fire of one of the elements it needs to continue burning. Unlike powder extinguishers, CO2 extinguishers leave no residue, making them ideal for environments with expensive or sensitive equipment.
What is a dry powder extinguisher used for?
A dry powder extinguisher is used for fighting multiple classes of fire, making it one of the most versatile fire-fighting tools available. When asking what a dry powder extinguisher is used for, the answer includes Class A fires (involving solids like wood and paper), Class B fires (involving flammable liquids), Class C fires (involving gases), and fires involving live electrical equipment up to 1000V from 1m away. Dry powder extinguishers work by releasing a fine powder that forms a barrier between the fuel and oxygen, interrupting the chemical reaction occurring in the fire. They’re particularly valuable in outdoor settings and environments with mixed fire risks, though they should not be used indoors due to cleanup issues and respiratory concerns.
What is a dry chemical powder extinguisher used for?
A dry chemical powder extinguisher is used for combating multiple fire types in a variety of settings. When considering what a dry chemical powder extinguisher is used for, you should know these versatile units can tackle Class A fires (involving solid materials), Class B fires (involving flammable liquids), Class C fires (involving gases), and fires involving electrical equipment up to 1000V at 1m distance. The chemical powder works by interrupting the chemical reaction in the fire while also creating a barrier between the fuel and oxygen. These extinguishers are particularly effective outdoors where their discharge won’t cause visibility issues or respiratory concerns.
What type of fire is a powder extinguisher used for?
A powder extinguisher is used for multiple types of fires, making it highly versatile. When considering what type of fire a powder extinguisher is used for, the answer includes Class A fires (involving solid materials like wood and textiles), Class B fires (involving flammable liquids like petrol and oil), Class C fires (involving gases), and fires involving live electrical equipment up to 1000V when used from a distance of 1m. The powder works by forming a thin layer over the burning material, which absorbs heat and cuts off oxygen supply to the fire. This versatility makes powder extinguishers particularly valuable in environments with mixed fire risks, especially in outdoor settings where their discharge won’t cause visibility or respiratory issues.
What is a powder fire extinguisher not used for?
A powder fire extinguisher is not used for indoor fires in enclosed spaces, despite its versatility for multiple fire classes. Ideally they should not be used in confined areas where people might inhale the powder, which can irritate respiratory and digestive systems. They’re also not recommended for use on delicate equipment due to the difficult cleanup process after discharge. Powder extinguishers are not suitable for Class F fires involving cooking oils and fats. Additionally, they should not be used in situations where visibility is crucial, as the powder discharge can significantly reduce visibility in an enclosed space, potentially hampering evacuation efforts.
What is the ABC powder fire extinguisher used for?
An ABC powder fire extinguisher is used for tackling multiple fire types in a single unit. These versatile extinguishers can combat Class A fires (solid materials like wood, paper and textiles), Class B fires (flammable liquids like petrol and oil), and Class C fires (gases like propane and butane). Additionally, they’re safe for use on fires involving live electrical equipment up to 1000V when used from 1m away. The ABC designation refers to the fire classes the extinguisher can handle, making it a popular choice for locations with varied fire risks. These extinguishers work by releasing a powder that creates a barrier between the fire’s fuel and oxygen while simultaneously interrupting the chemical reaction of combustion.
What is a CO2 fire extinguisher not used for?
A CO2 fire extinguisher is not used for Class A fires involving solid materials like wood, paper and textiles. When asking what a CO2 fire extinguisher is not used for, you should know they have limited effectiveness on deep-seated Class A fires because they don’t provide the cooling effect needed to prevent re-ignition. CO2 extinguishers are also not suitable for Class F fires involving cooking oils and fats. They should not be used in confined spaces without proper ventilation, as they work by displacing oxygen, which can create asphyxiation hazards. Unlike powder, water mist or foam extinguishers that can handle multiple fire classes, CO2 extinguishers are specifically designed for Class B fires and fires involving electrical equipment, making them less versatile in mixed-risk environments.
What does a dry powder fire extinguisher contain?
A dry powder fire extinguisher contains a specialised dust-like powder, typically made of sodium bicarbonate, potassium bicarbonate or monoammonium phosphate, depending on the specific type and intended use. When asking what a dry powder fire extinguisher contains, it’s important to note that this powder is specially formulated to smother fires by forming a thin layer on the burning fuel when discharged. This layer absorbs heat and deprives the fire of oxygen, preventing the continuation of the combustion process. The powder is stored under pressure with nitrogen as the propellant gas. Unlike foam or water extinguishers, dry powder fire extinguishers contain no liquid components, allowing them to be used in freezing conditions outdoors all year round. Powder extinguishers do not contain toxic PFAS chemicals.
What is a foam extinguisher used for?
A foam extinguisher is used for fighting Class A fires (involving solid materials like wood and paper) and Class B fires (involving flammable liquids). When considering what a foam extinguisher is used for, you should know that modern environmentally friendly foam extinguishers, such as P50 A-Foam and B-Foam, work by covering the fire and forming a seal that cuts off the oxygen supply while also providing a cooling effect. Any extinguishers that have been di-electrically tested are also safe for use on live electrical equipment up to 1000V at a distance of 1m. Some foam variants offer the additional benefit of being suitable for Class F fires involving cooking oils.
What are the four types of fire extinguishers?
The four types of fire extinguishers most commonly found in workplaces and public spaces are water, foam, powder and CO2 extinguishers. When asking what are the four types of fire extinguishers, you should understand that each type serves specific purposes: water extinguishers are primarily for Class A fires (solids); foam extinguishers handle Class A and B fires (solids and liquids); powder extinguishers are versatile for Class A, B, C fires and electrical equipment; and CO2 extinguishers target Class B fires and electrical equipment. A fifth type, wet chemical extinguishers, is specifically designed for Class F fires involving cooking oils. Water mist is an additional type of fire extinguisher. Understanding the capabilities of these types of fire extinguishers helps you select the appropriate fire-fighting solution based on your specific fire risks.
What is a wet chemical fire extinguisher used for?
A wet chemical fire extinguisher is used primarily for Class F fires involving cooking oils and fats, making them essential in commercial kitchens and food preparation areas. When deployed, the wet chemical fire extinguisher releases a fine mist that cools the burning oil and undergoes a chemical reaction with the fat to create a soap-like substance that seals the surface and prevents re-ignition. These extinguishers are also effective on Class A fires involving solid materials. They provide a specialised solution for the unique risks posed by high-temperature cooking oils that traditional extinguishers might struggle to combat effectively.
What is the dry powder fire extinguisher class rating?
The dry powder fire extinguisher class rating typically includes Classes A, B and C, making it one of the most versatile extinguishers available. When looking at what the dry powder fire extinguisher class rating covers, you’ll find these extinguishers are suitable for Class A fires (involving solid materials like wood and paper), Class B fires (involving flammable liquids like petrol and oil), and Class C fires (involving gases like propane and butane). Additionally, they’re rated for use on fires involving live electrical equipment up to 1000V from a distance of 1m. This multi-class rating is why powder extinguishers are often chosen for environments with varied fire risks, particularly outdoor settings where their discharge won’t cause visibility or respiratory concerns.
What is the maximum gap allowed under a fire door?
The maximum gap allowed under a fire door is usually 10mm. However, this is not always the case. It is essential to consult the manufacturer’s guidance for the specific type of door that has been installed.
Why should I worry about the gap under my fire door?
Fire doors need a bit of a gap around them to swing freely above the floor covering. However, if the gap is too wide, the fire door’s effectiveness will be compromised. In that case, the door may not provide the protection that it should if a fire breaks out.
All Responsible Persons for fire safety have a legal obligation to maintain their fire doors in accordance with its certification. There is new legislation for the maintenance of fire doors in residential flats. As a result of this legislation, thorough fire door checks must be caried out every three months in properties over 11 meters high, or containing two or more separate dwellings. Consequently, if fire doors are found to be non-compliant, and there are no plans in place for repair or replacement, the Responsible Person could be prosecuted.
Are gaps allowed under fire doors?
Yes, fire doors should have gaps underneath them to allow free movement and ventilation. The allowance for the size of this gap varies between manufactures and must fall within the specified range for that door. Therefore, as recommended in BS 8214:2016 – 9.5.3, you should check requirements with your fire door manufacturer. This is the only way to ensure that every door on your premises is complaint. The door manufacturer should be able to give you specific advice for your circumstance.
If smoke protection is required by Building Regulations, the maximum gap underneath the fire door is reduced to 3mm.
How to fix fire door gaps
Surface mounted drop-down smoke seals or rebated drop-down smoke seals can be fitted to existing fire doors if the gap is too large. Usually suitable for gaps of up to 14mm, they can be attached to the bottom of the door. When the door closes, a plunger makes contact with the door frame and lowers the seal to the floor, closing the gap under the door.
Will a Carbon Monoxide alarm detect gas leaks? Carbon Monoxide detectors will only be activated by the presence of carbon monoxide gas (CO), which is the result of incomplete combustion. CO can be released by faulty fuel-burning appliances, such as gas stoves, boilers, and fire places. Carbon monoxide detectors will not detect gas leaks involving the natural gas (NG) or liquefied petroleum gas (LPG) which fuel household appliances, such as boilers.
A carbon monoxide alarm will not detect gas leaks
Why has my CO alarm not gone off during a gas leak?
An odorant is added to LPG and NG gas supplied to homes, because the gases are highly flammable and explosive. The unpleasant, sulphur-like smell is designed to alert occupiers to any leaks. Many people worry that there is a problem with their CO detectors when, even though they can smell gas, their CO alarm has not gone off.
However, in these scenarios, the CO alarm is not faulty. The detectors in these devices are only triggered by carbon monoxide, which is released by faulty fuel burning appliances. Carbon monoxide is colourless and has no smell, and therefore cannot be detected by humans, unlike a gas leak. Ensure your CO alarm is in good working order by pressing the ‘test’ button regularly. You should also check that the alarm is still ‘in date’ (CO alarms usually need replacing between 7 and 10 years after installation).
A digital CO alarm will display current CO levels at all times
How can I protect my family from carbon monoxide gas?
Carbon Monoxide has no colour, smell, or taste, but can kill within minutes of exposure. CO is a byproduct of incomplete combustion within faulty gas burning appliances, so there is no way to add an odorant to this deadly gas. The only way to detect Carbon Monoxide is with a CO detector. To protect your family from CO poisoning:
For more information about the dangers of Carbon Monoxide, and what to do if you are being exposed, read ‘Do I need a Carbon Monoxide alarm?’.
A carbon monoxide alarm can’t detect gas leaks, so how can a gas leak be detected?
Gas leaks can be incredibly dangerous, due to the explosive and flammable nature of component gases. While the strong smell added to these gases is designed to alert occupiers of the leak, this is unlikely to wake you if you are asleep. If you wish to protect your family against leaks of unburned gases, install a specialist gas detector in your home.
What to do if there is a gas leak in your home
If you smell gas in your home, it is likely that there is a gas leak. This could be in your home, or a neighbouring property. Open all windows and doors to dilute the concentrations of gas in the property. Do not light cigarettes or matches, or turn on any electrical devices. If possible, turn off the gas meter to stop more gas from entering, and alert neighbours to do the same until the source of the leak has been professionally identified.
Evacuate the property, and once outside the property, call your local GDN’s emergency number (Gas Distribution Network) as soon as possible.
