Technical drawing of HT-630, round device 132mm wide, 60mm tall, with top and side views.
A modern desk with an HT-630, computer, potted plant, lamp, and keyboard.
An HT-630 smoke detector is ceiling-mounted in a modern kitchen.
A kitchen with a FireAngel HT-630 and a steaming kettle under the cooker hood.
Modern white kitchen featuring the FireAngel HT-630 and stainless steel appliances with pendants.

HT-630

Thermistek Kitchen Heat Alarm

Thermistek 5 Year Warranty Battery included Kitemark Battery Silence

Product description

Looking for a FireAngel HT‑630 alarm replacement? Replace your end of life alarm with the FA6720‑R to continue to be alerted to fires that may start in your kitchen, attic or garage.

FireAngel developed our Thermistek heat alarm to give a rapid alert to danger ‑ when compared to traditional heat alarms Thermistek technology reduces the reaction time by half, meaning you and your family have vital extra time to react.

The unit comes with a sealed, tamper proof battery that will last the lifetime of the alarm. The sensor within the unit will deteriorate after 10 years, so to ensure you’re protected we recommend you replace the unit after this time.

As well as allowing easy testing with a sweeping brush from the floor below, this large button also activates our Sleep Easy function which silences low battery chirps for 8 hours ‑ giving you a peaceful night’s sleep.

MoreLess

Looking for a FireAngel HT‑630 alarm replacement? Replace your end of life alarm with the FA6720‑R to continue to be alerted to fires that may start in your kitchen, attic or garage.

FireAngel developed our Thermistek heat alarm to give a rapid alert to danger ‑ when compared to traditional heat alarms Thermistek technology reduces the reaction time by half, meaning you and your family have vital extra time to react.

Installation & Setup

Get the help and support you need to easily set up and install your FireAngel alarm for instant protection.

Installation guide

Installation guide

Click the icon to find out more about installing your pro connected app

Maintenance guide

Maintenance guide

Click the icon to find out how to maintain and test your alarm

Resources

To ensure you install the right alarm for your home, and one that's compliant with your local fire regulations, review our manual and data sheet or get in touch with our customer service team.

Product manual

Product manual

Click the icon to download the product manual

Datasheet

Datasheet

Click the icon to download the product datasheet

Related FAQs

Looking for a FireAngel HT‑630 heat alarm replacement?
Replace your end of life HT‑630 alarm with a FireAngel FA6720-R Heat Alarm with 10 year sealed for life battery, to be alerted to fires without the false reactions to cooking fumes.

A smoke alarm detects smoke particles using an optical or ionisation sensor, while a heat alarm detects temperature changes using a thermistor. Smoke alarms are designed for bedrooms, hallways and living rooms. Heat alarms are designed for kitchens, garages and utility rooms where smoke alarms would trigger false alarms from cooking or fumes. Most homes need both types for full coverage. See our guide on what fire alarms to install and where.

This alarm has a quiet self-test function. A quiet self‑test allows you to ensure your alarm is working, without disturbing anyone else with a loud alarm.

The FireAngel HT-630 and ST-620 smoke alarm cannot be interlinked with any other alarm. See our Pro Connected alarm range which allows you to build a network of smoke, heat and carbon monoxide alarms across the whole home.

See all faqs

Extend Your Protection

Protecting your home and loved ones is easier than ever with our range of smoke, heat, and carbon monoxide alarms. To ensure complete coverage, it’s essential to place the right alarm in the right location. Check out what alarms are right for you on our help to buy quiz.

For even greater peace of mind, consider upgrading to our Pro Connected Range. These smart alarms offer wireless interlinking, meaning if one alarm is triggered, all alarms in your home will sound. Plus, they can be monitored through our FireAngel Connected smartphone app, whether you’re at home or away.

extend your protection
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Got a burning question? Get in touch

If you can't find what your looking for on our blogs and looking for further guidance and advice, our UK-based Customer Support team are on hand all week from 8:30am until 5:30pm, they can answer any further queries you may have on our products, solutions or services.

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