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Heat Alarms

Temperature-based detection provides reliable fire protection where smoke alarms struggle. A heat detector responds to rising temperatures rather than airborne particles, making it perfect for areas where dust, steam, or cooking fumes would trigger false alarms.

Read more about heat alarms...

Temperature Detection Technology

Fixed temperature sensors activate when ambient temperature reaches a predetermined threshold, typically around 58°C. This reliable trigger point indicates genuine fire conditions and avoids false alarms from normal temperature variations.

Rate-of-rise detection responds to rapid temperature increases that signal developing fires. These sensors activate when temperature climbs faster than normal environmental conditions would explain, providing early fire warning.

Combination sensors incorporate both fixed temperature and rate-of-rise detection for enhanced reliability. This dual approach ensures activation under various fire development scenarios and maintains false alarm resistance.

Thermal detection remains unaffected by airborne contaminants that can compromise smoke sensors. Dust, cooking vapours, and chemical fumes don't interfere with heat alarm operation, ensuring consistent protection.

Ideal Installation Locations

Kitchen environments benefit enormously from heat detection. Cooking produces smoke and steam that would constantly trigger smoke alarms, making heat detectors the preferred choice for reliable fire protection.

Garage spaces often contain dust, vehicle exhaust, and chemical vapours that interfere with smoke detection. Heat alarms provide dependable protection without nuisance activations from these environmental factors.

Utility rooms housing boilers, water heaters, and laundry equipment generate steam and humidity that can affect smoke sensors. Heat detection offers reliable protection in these challenging environments.

Loft spaces accumulate dust and experience temperature variations that can cause false alarms with smoke detectors. Heat sensors provide appropriate fire protection for these storage areas.

Professional Applications

Commercial kitchens require heat detection to meet fire safety regulations while avoiding disruption from normal cooking operations. These environments demand reliable protection that won't interfere with business activities.

Industrial facilities use heat detection in areas where smoke sensors would be impractical. Manufacturing processes often generate particles or vapours that would cause constant false alarms with alternative detection methods.

Car parks and loading bays benefit from heat detection that remains reliable despite vehicle exhaust and environmental contaminants. These areas require protection that functions consistently in challenging conditions.

Product Options

The UltraFire UBH1 operates on two AA batteries and provides reliable heat detection with our exclusive 5-year warranty. This economical solution offers dependable protection for domestic applications.

Sealed battery heat alarms reduce ongoing maintenance requirements. The UltraFire ULLH10 features a 10-year lithium battery that never needs replacement throughout the alarm's operational life.

Mains-powered heat detectors suit permanent installations requiring maximum reliability. These units incorporate battery backup to maintain protection during power outages and provide consistent operation.

Radio-interlinked heat alarms connect wirelessly with smoke detectors to create comprehensive protection networks. The UltraFire ULLH10RF combines heat detection with wireless connectivity for enhanced safety coverage.

Our complete heat alarm range includes solutions for domestic applications. Professional guidance ensures you select appropriate detection methods for specific environmental challenges.

For comprehensive fire protection strategies, explore our complete alarm systems that combine smoke and heat detection for optimal safety coverage.

Choose temperature-based protection where traditional smoke detection falls short. Browse our heat detector selection and secure reliable fire protection for challenging environments.

Frequently Asked Questions (FAQs)

What is the difference between a heat detector and smoke alarm?

A heat detector responds to temperature increases rather than smoke particles, making it ideal for kitchens and dusty areas where smoke alarms would produce false activations.

At what temperature do heat alarms activate?

Heat alarms typically activate at around 58°C fixed temperature or when temperature rises rapidly, indicating fire conditions rather than normal environmental temperature changes.

Can heat detectors be used instead of smoke alarms everywhere?

Heat detectors cannot replace smoke alarms in bedrooms and living areas because they respond more slowly to fires, potentially providing insufficient warning time for safe evacuation.

Do heat alarms work in cold environments?

Heat alarms function reliably in cold environments and are actually less affected by low temperature extremes than some smoke detection technologies, maintaining consistent protection capabilities.

Image of the Mains Radio-Interlinked Heat Alarm with Alkaline Back-up Battery - Aico Ei144eRF

Mains Radio-Interlinked Heat Alarm with Alkaline Back-up Battery - Aico Ei144eRF

  • Power: 230V mains powered with back-up battery
  • Backup Battery: 9V alkaline back-up battery (included)
  • Warranty: 5 year warranty
  • Test and hush buttons
  • Made in Ireland by Ei Electronics
  • Wirelessly interlinks with up to 12 compatible units
  • Suitable for BS 5839-6: 2019 Grade D2
  • Kitemarked to BS 5446-2: 2003
  • Also suitable for both the Welsh and Scottish 2022 legislation
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Image of the Mains Radio-Interlinked Heat Alarm with Self-Charging 10 Year Back-up Battery - Aico Ei3014RF

Mains Radio-Interlinked Heat Alarm with Self-Charging 10 Year Back-up Battery - Aico Ei3014RF

  • 230V mains powered heat alarm with rechargeable lithium backup battery
  • Supplied with SmartLINK module for radio-interlinking with up to 12 devices
  • CE and Kitemarked to BS 5446-2: 2003
  • Suitable for BS 5839-6: 2019 Grade D1 installations
  • Contains AudioLINK allowing users to extract real time data to their phone
  • 5 year manufacturer's warranty
  • Also suitable for the 2022 Scottish legislation
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Image of the Mains Radio-Interlinked Combined Smoke and Heat Alarm with Self-Charging 10 Year Back-up Battery - Aico Ei3024RF

Mains Radio-Interlinked Combined Smoke and Heat Alarm with Self-Charging 10 Year Back-up Battery - Aico Ei3024RF

  • Power: 230V mains powered with back-up battery
  • Backup Battery: Self-charging battery
    • Warranty: 5 year warranty
    • Combined alarm: both an optical smoke, and heat sensor
    • Hybrid interlinking with up to 12 compatible devices
    • AudioLINK - extract real time data to your smart phone
    • Kitemarked to BS EN 14604: 2005 (smoke)
    • Kitemarked to BS 5446-2: 2003 (heat)
    • Also suitable for both the Welsh and Scottish 2022 legislation
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    Image of the Mains Radio-Interlinked Combined Heat and Carbon Monoxide Alarm with Self-Charging 10 Year Back-up - Aico Ei3028RF

    Mains Radio-Interlinked Combined Heat and Carbon Monoxide Alarm with Self-Charging 10 Year Back-up - Aico Ei3028RF

    • Product Lifespan: 10 years
    • Power: 230V mains powered with battery backup
    • Backup Battery: Re-chargeable lithium battery
    • Warranty: 5 year warranty
    • Contains both a heat and electrochemical CO sensor
    • Can interlink with up to 12 devices via SmartLINK
    • Kitemarked to BS 5446-2:2003 (heat)
    • Kitemarked to BS 50291-1:2010 (CO gas)
    • Suitable for ceiling installation
    • Also suitable for both the Welsh and Scottish 2022 legislation
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    Image of the 10 Year Longlife Battery Heat Alarm - FireAngel FA6720-R

    10 Year Longlife Battery Heat Alarm - FireAngel FA6720-R

    • Battery: 10 year sealed lithium battery
    • Warranty: 5 year warranty
    • Suitable for travel accommodation such as motorhomes
    • Quiet test and Sleep Easy function
    • Kitemarked to BS 5446-2: 2003
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    Image of the Flat Smoke and CO Alarm Starter Kit - FireAngel FAKIT1

    Flat Smoke and CO Alarm Starter Kit - FireAngel FAKIT1

    • Battery: lithium battery (included)
    • Warranty: 5 year warranty
    • 2x smoke alarms, 1x heat alarm, 1x carbon monoxide alarm
    • Certified to BS EN BS 5839-6: 2019 (smoke and heat alarm)
    • Certified to BS EN 50291-2: 2019 (CO alarm for domestic use)
    • UKCA marked
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    Image of the Home Smoke and CO Alarm Starter Kit - FireAngel FAKIT2

    Home Smoke and CO Alarm Starter Kit - FireAngel FAKIT2

    • Battery: Sealed lithium battery
    • Warranty: 5 year warranty
    • 3x smoke alarm, 1x heat alarm, 2x carbon monoxide alarm
    • Certified to BS EN BS 5839-6: 2019 (smoke and heat alarm)
    • Certified to BS EN 50291-2: 2019 (CO alarm for domestic use)
    • CE and UKCA marked
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    Image of the Mains Powered Heat & CO Detector with Rechargeable Lithium Battery Backup - Hispec RF10-PRO

    Mains Powered Heat & CO Detector with Rechargeable Lithium Battery Backup - Hispec RF10-PRO

    • Power: 230V mains powered with lithium back-up battery
    • Back-up Battery: Rechargeable lithium battery
    • Warranty: 5 year manufacturer's warranty
    • Multi-sensor alarm containing both an heat and CO sensor
    • Radio-interlink up to 20 compatible alarms
    • Kitemarked to BS 5446-2: 2003 (heat)
    • Kitemarked to BS EN 50291-1: 2018 (carbon monoxide)
    • Also suitable for both the Welsh and Scottish 2022 legislation
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    Image of the Mains Powered Heat Alarm with Lithium Back-Up Battery - Hispec RF10-Pro

    Mains Powered Heat Alarm with Lithium Back-Up Battery - Hispec RF10-Pro

    • Power: mains powered with battery backup
    • Back-Up Battery: Rechargeable lithium battery
    • Warranty: 5 year manufacturer's warranty
    • Interlinks with up to 20 compatible devices
    • Combined test and hush button
    • Suitable for BS 5839-6: 2019 Grade D1
    • Also suitable for both the Welsh and Scottish 2022 legislation
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    Image of the Mains Powered Smoke & Heat Alarm with Rechargeable Lithium Battery Backup - Hispec RF10-PRO

    Mains Powered Smoke & Heat Alarm with Rechargeable Lithium Battery Backup - Hispec RF10-PRO

    • Power: 230V mains powered with lithium back-up battery
    • Back-up Battery: Rechargeable lithium battery
    • Warranty: 5 year manufacturer's warranty
    • Multi-sensor alarm containing both a smoke and heat sensor
    • Radio-interlink up to 20 compatible alarms
    • Kitemarked to BS EN 14604: 2005 (smoke)
    • Kitemarked to BS 5446-2: 2003 (heat)
    • Also suitable for both the Welsh and Scottish 2022 legislation
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    Image of the Radio-Interlinked Sealed Battery 3 Smoke, 1 Heat, and 1 CO Alarm Kit - Hispec RF10-Pro Range

    Radio-Interlinked Sealed Battery 3 Smoke, 1 Heat, and 1 CO Alarm Kit - Hispec RF10-Pro Range

    • Battery: 10 year sealed lithium battery
    • Warranty: 5 year warranty
    • Radio-interlink up to 20 Hispec RF10-Pro Alarms
    • Suitable for BS 5839-6: 2019 Grade F1 installations
    • Compatible with the Hispec Control Unit
    • Also suitable for the 2022 Scottish legislation
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    Image of the Radio-Interlinked 10 Year Sealed Battery 2 Smoke Alarms & 1 Heat Alarm Kit - UltraFire ULL10RF

    Radio-Interlinked 10 Year Sealed Battery 2 Smoke Alarms & 1 Heat Alarm Kit - UltraFire ULL10RF

    • FREE delivery
    • Battery: 10 year sealed lithium battey
    • Warranty: 10 year manufacturer's warranty
    • Wirelessly interlink up to 15 UltraFire ULL10RF devices
    • 2 x optical smoke alarms and 1 x heat alarm included
    • Suitable for BS 5839-6: 2019 Grade F1 installations
    • Compliant with Scottish 2022 and Northern Ireland Landlord 2024 legislation
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    4.8 out of 5 stars

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    Image of the Radio-Interlinked 10 Year Sealed Battery 3 Smoke Alarms and 1 Heat Alarm Kit - UltraFire ULL10RF Series

    Radio-Interlinked 10 Year Sealed Battery 3 Smoke Alarms and 1 Heat Alarm Kit - UltraFire ULL10RF Series

    • FREE delivery
    • Battery: 10 year sealed lithium battey
    • Warranty: 10 year manufacturer's warranty
    • Wirelessly interlink up to 15 Ultrafire ULL10RF devices
    • 3 x optical smoke alarms and 1 x heat alarm included
    • Suitable for BS 5839-6: 2019 Grade F1 installations
    • Compliant with Scottish 2022 and Northern Ireland Landlord 2024 legislation
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    4.5 out of 5 stars

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    Image of the Kitchen Fire Safety Kit - Safelincs

    Kitchen Fire Safety Kit - Safelincs

    • Protect the highest risk room in your home
    • Specifically designed heat alarm for kitchens
    • Carbon monoxide designed to detect deadly CO gas
    • Wet chemical extinguisher suitable for cooking oil fires
    • Clam shell style case fire blanket suitable for frying pan fires
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    5 out of 5 stars

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    Do I Need a Heat Alarm or Smoke Alarm?

    Do I Need a Heat Alarm or Smoke Alarm?

    Heat alarms are recommended for installing in kitchens and garages, where smoke or cooking fumes could cause false alarms in traditional smoke alarms. Heat alarms detect heat, rather than smoke, which makes them ideal for areas where dust, steam, and 'normal' smoke fumes (such as during cooking) are present, and would ordinarily cause a smoke alarm to falsely activate.

    Smoke alarms are recommended for installing in most rooms of the house, including bedrooms, living rooms, and hallways (general living areas). Optical smoke alarms are designed to quickly detect smoke from all sources, and are also able to detect smoke from slower, smouldering fires.

    How do Heat Alarms work?

    How do Heat Alarms work?

    Heat alarms work by detecting a rise in temperature, rather than detecting smoke particles in the atmosphere like traditional smoke alarms. This is why they are most suited to areas where smoke alarms falsely activate. Most commonly, these areas include kitchens and garages. For more accurate detection, some heat alarms also measure the rate at which temperature rises so they can provide an earlier warning of danger.

    Where do you put a Heat Alarm?

    Where do you put a Heat Alarm?

    Heat Alarms can be installed in areas where traditional smoke alarms would falsely activate due to 'normal' smoke fumes (such as during cooking), vapours, dust, and damp. Heat alarms are recommended for kitchens and garages. Always refer to the manufacturer's instructions for your alarm for detailed alarm placement guidance.

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