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10 Year Longlife Battery Heat Alarm - FireAngel HT-630

55 Customer Reviews
1 unit 2+ units 5+ units

£13.44 inc VAT

£11.20 ex VAT

£13.20 inc VAT

£11.00 ex VAT

£13.08 inc VAT

£10.90 ex VAT

Product Overview

With an aesthetic low profile design the FireAngel HT-630 heat alarm is ideal for areas such as kitchens and garages where a standard smoke alarm could be prone to false triggering. The HT-630 heat sensing technology provides quick reaction to significant rate-of-rise in temperature, sounding an 85dB warning alarm when danger is detected.

  • Battery: Built-in, lasts the lifetime of your alarm - GUARANTEED
  • Warranty: 10 year warranty
  • Tamper-proof battery does not need to be replaced for the life of the alarm
  • CE marked and Kitemarked to BS 5446-2
  • Single, easy to use test/hush button
  • Quick reaction to significant rate-of-rise in temperature
  • Suitable for installations complying to BS 5839-6: 2019 Grade F1
  • Aesthetic low profile design
  • Ideal for use in kitchens, laundry rooms and garages
  • Supplied with fixings; 2 x screws and 2 x rawl plugs
Technical Data
Product Code FAHT630
Alternative Product Codes HT-630, HT-630R, ht630, ht630r
Brand FireAngel
Battery Type

10 Year Sealed Lithium

Dimensions (HxDia)


Operating Temperature

+54°C to +65°C

Relative Humidity

Up to 90%

Sound Output



10 Years

Weight 0.18kg
Product Datasheets
FAQs (8)
Q. What smoke alarm should I use in a bedroom with an en suite bathroom?

It is usually recommended to install an optical smoke alarm in a bedroom. This is because optical smoke alarms are slightly quicker at detecting slow smouldering fires that can originate from upholstery type materials and over-heated wiring. Also, an optical smoke alarm would be less likely to sound a false alarm than an ionisation would, if steam/water droplets were present from the bathroom. Detectors should be installed as central to the room as possible; however for your application I would also consider the position of the en suite to make sure that the detector is not in the direct path of the joining door. This is just to try and avoid the chances of a false alarm. No detector is designed for use in bathroom areas.

Q. How do I safely dispose of my old smoke alarms?

Safelincs is signed up to Valpak's WEEE (Waste Electrical and Electronic Equipment) Distributor Take-Back Scheme (Registration ID: 7370). Private households can therefore drop off their electronic and electrical fire safety waste at their municipal recycling centre when they are purchasing new products from us. To find your nearest recycling centre, please visit

Q. is there a different alarm sound for optical and heat sensors to tell you the difference in what kind of fire it is?

There is only one alarm sound type when a fire is detected, when interconnected all smoke and heat alarms will sound. However only the triggered alarm will have a rapidly flashing red indicator.

Q. How long do the batteries last in smoke alarms?

The 9V alkaline batteries last 12-18 months. Lithium batteries will usually last 5x longer than their alkaline counterparts, achieving around 5 years lifetime. Some lithium cells are also rechargeable, and when used in a mains-powered alarm may last for the entire functional lifespan of the alarm. Newer alarm models may also feature a "sealed" lithium battery. These batteries are specialist components which are designed to not be removed or need replacing by the user, and have been tested by the alarm manufacturer to ensure they last for the lifetime of the alarm.

Please Note: the actual lifetime of your batteries depends on how often the alarms are tested or activated, as sounding the alarm draws more power than when the alarms are "waiting" to detect fire. You should also read your alarm's manual to make sure you only use the recommended types and brands of batteries, as failing to follow these instructions may cause the alarm to malfunction, not alerting you in the event of a fire, and might also invalidate the warranty.

Q. Can a smoke alarm be fitted with a sticky adhesive pad in a let property?

The sticky pad is suitable for all battery operated smoke alarms. However, we cannot judge if battery alarms are suitable for your let property, as let properties usually require mains powered alarms. There is some advice to this in the governments guides to fire risk assessments.
Also see the LACoRS guide for let properties.

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Key Product Features

Test and hush button built in to thermistor cover

Secure the base to your ceiling and twist alarm into place

Status indicator lights clearly visible around the main button

Screws and rawl plugs for installation are included

What's Included?

Every FireAngel FAHT630 is supplied with the following components.

  • 1 x FireAngel HT-630 10-year heat alarm
  • 1 x Sealed 10-year lithium battery
  • 1 x Screw fixing set (screws & rawl plugs)
  • 1 x Instruction manual

Pricing & Availability

Model Stock 1 unit 2+ units 5+ units
Product Code: FAHT630 Stock Level:
More than 20 in stock Expected dispatch: Today
1 unit

£13.44 inc VAT

£11.20 ex VAT

2+ units

£13.20 inc VAT

£11.00 ex VAT

5+ units

£13.08 inc VAT

£10.90 ex VAT

Delivery Options

The following delivery options are available on this product.

Economy Delivery

£4.79 inc VAT - Orders will be delivered in 3-5 working days by Hermes

Express Delivery

£7.91 inc VAT - Orders will be delivered in 1-2 working days by DHL

Excellent Warranty

This product is supplied with a 10 year manufacturers warranty as standard

Customer Reviews

55 customers have given this product an overall rating of 4.8 out of 5

Reviews by real customers

All of our product reviews are written by real customers that have purchased this product from us and are published without modification.

Rating: 4 / 5 Stars

Reviewed by: S P

Promptly delivered and easy to nstall

Published on: 19th December 2020

Rating: 5 / 5 Stars

Reviewed by: J H

Works well

Published on: 16th December 2020

Rating: 5 / 5 Stars

Reviewed by: T L

Excellent service a quality product

Published on: 23rd June 2020

Rating: 5 / 5 Stars

Reviewed by: C H

Excellent service and product

Published on: 23rd June 2020

Rating: 5 / 5 Stars

Reviewed by: B S

Great price for this product!

Published on: 30th May 2020

Rating: 5 / 5 Stars

Reviewed by: J R

Easy to install and great low profile on ceiling

Published on: 11th August 2019

Rating: 5 / 5 Stars

Reviewed by: P P

Long lasting quality smoke sensor alarm Required an alarm which detected real smoke and power lasting for 10 years - can't fault it !

Published on: 14th May 2019

Rating: 5 / 5 Stars

Reviewed by: P R

have recently purchased another three (3) alarms No major problems

Published on: 15th April 2019

Rating: 5 / 5 Stars

Reviewed by: J C

got 2 of these one for kitchen and one for workshop should have paid extra for the one that you link to late now

Published on: 12th April 2019

Rating: 5 / 5 Stars

Reviewed by: J M

very easy to fit, smart and discreet looks, long battery life, reasurance in knowing that a reliable product will help keep occupants safe from the risk of fire

Published on: 8th April 2019

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