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First Alert Hardwired Heat Alarm with Battery Backup, BRK Brands HD6135FB

4.5 4.5 out of 5 stars 613 ratings
$30.23
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Purchase options and add-ons

Brand FIRST ALERT
Style Heat Alarm
Power Source Battery Powered
Color White
Item Weight 0.6 Pounds
Alarm Audible
Material Plastic

About this item

  • Reliable heat detector ideal for use in areas unsuitable for smoke alarm installation
  • Advanced rate-of-rise sensing technology detects high temperatures and rapid temperature rises
  • Microprocessor-controlled to dramatically reduce occurrence of false alarms
  • Can be remotely tested and muted using almost any household remote control (sold separately)
  • Loud 85-decibel alarm is designed to be heard easily
› See more product details

Customer ratings by feature

Easy to install
4.4 4.4
Value for money
4.4 4.4
Tech Support
4.4 4.4
Remote Control
4.0 4.0
See all reviews
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First Alert Hardwired Heat Alarm with Battery Backup, BRK Brands HD6135FB
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From the manufacturer

First Alert
Super Prepared Family

Smoke

Carbon Monoxide

Extinguishers

Escape Ladders

Smoke Alarms

Place at least 10 feet from kitchen/stove, and on the ceiling or high on a wall, no more than 10 inches from top.

Carbon Monoxide Alarms

Carbon monoxide alarms can be placed anywhere, not just the ceiling or high on a wall. They should be replaced every 5 to 7 years.

Fire Extinguishers

Keep in the kitchen and garage, but make sure to have the right grade for the type of fire that might occur.

Escape Ladders

Have at least one if your home has more than one story. Each room needs 2 escape routes; in most bedrooms it's the window, so have a ladder nearby.

Recommended Placement

Product information

Technical Details

Additional Information

Warranty & Support

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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First Alert Hardwired Heat Alarm with Battery Backup, BRK Brands HD6135FB

First Alert Hardwired Heat Alarm with Battery Backup, BRK Brands HD6135FB

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Product guides and documents

User Manual (PDF)

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Product Description

Product Description

The First Alert HD6135FB Hardwired Heat Alarm with Battery Backup enhances your home's fire safety by accurately detecting high temperatures and rapidly rising temperatures. Easy to install on a wall or ceiling, this heat detector is ideal for use in crawl spaces, laundry rooms, garages, kitchens, and other areas where smoke alarms aren't an option. It comes equipped with advanced rate-of-rise sensing technology and a microprocessor that dramatically reduces the number of false alarms. If the temperature reaches 135 degrees Fahrenheit or rises more than 15 degrees Fahrenheit in one minute, the alarm alerts you to the danger with a loud 85-decibel siren. Designed to be wired directly into your home's electrical system, this 120-volt AC hardwired temperature sensor features a 9-volt backup battery that helps keep the alarm functioning even in the event of a power outage. An intuitive mounting bracket makes installation hassle-free, while an easy-to-access battery drawer allows you to quickly change the battery. The alarm can be configured to work with almost any standard household remote control (sold separately), so you can remotely silence nuisance alarms with the push of a button. And thanks to the convenient test/silence button, it is easy to check alarm function and mute false alarms. This heat alarm can integrate with up to 12 other First Alert or BRK hardwired alarms and up to 6 other compatible devices. It features a latching indicator that identifies which unit triggered the alarm.

Amazon.com

The BRK hardwire heat alarm is ideal for use in attached garages and other locations where standard smoke alarms are not suitable. The unit alarms if either the temperature reaches 135 degrees Fahrenheit or the temperature rises more than 15 degrees Fahrenheit in one minute.

The HD6135FB hardwire heat alarm includes these features:

  • 120-volt AC/DC with 9-volt battery backup
  • 135 degrees Fahrenheit fixed rate and rate-of-rise temperature sensing
  • Microprocessor controlled for fewer nuisance alarms
  • The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. Silencing and testing functions can be run by most household remote controls such as the ones used for the television, stereo, and VHS or DVD players.
  • Latching alarm indicator which automatically identifies which unit initiated the alarm.
  • 120-volt AC inter-connectable (with maximum 18 compatible devices). The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Power indicators show which unit in the series initiated the alarm.
  • 85-decibel horn.
  • Meets UL requirements.
  • 10-year limited warranty. --Bree Norlander

    What's in the Box
    One heat alarm, one 9-volt battery, and user's manual

Top Brand: FIRST ALERT

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100K+ customers rate items from this brand highly
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Price$30.23$31.01$29.99$22.50$36.95$64.99
Delivery
Get it as soon as Wednesday, May 15
Get it as soon as Wednesday, May 15
Get it as soon as Wednesday, May 15
Get it May 16 - 20
Get it May 14 - 16
Get it as soon as Wednesday, May 15
Customer Ratings
4.54.5 out of 5 stars613
4.64.6 out of 5 stars30
3.93.9 out of 5 stars58
4.54.5 out of 5 stars56
3.83.8 out of 5 stars18
4.54.5 out of 5 stars30
Easy to install
4.4
—
3.4
5.0
4.5
—
Value for money
4.4
—
3.0
4.6
4.1
—
Battery life
3.2
—
2.8
5.0
4.0
—
Sold By
Amazon.com
Amazon.com
Jemay-US
MDC Deals
C-Tech Inc.
Amazon.com
power source
Battery Powered
Corded Electric
Battery Powered
Battery Powered
Battery Powered
Corded Electric
sensor type
—
Ionization
Photoelectric
—
—
Ionization
style
Heat Alarm
Smoke
modern
Celing Mount
—
Smoke, CO
alarm
Audible
Smoke
Visual
Audible
Audible
Smoke, CO
weight
0.6 pounds
0.7 pounds
—
—
0.31 pounds
0.56 pounds

Important information

Bulb Voltage

120 volts

Customer reviews

4.5 out of 5 stars
4.5 out of 5
613 global ratings

Customers say

Customers like the quality, ease of installation, connectivity and value of the gas smoke fire alarm. For example, they mention it's an excellent direct replacement and upgrade for the original equipment. That said, some complain about the battery life. Opinions are mixed on noise and compatibility.

AI-generated from the text of customer reviews

45 customers mention34 positive11 negative

Customers like the quality of the gas smoke fire alarm. They say it's a good product, easy to install, and an excellent direct replacement. Some customers also mention that it has fixed all of their false alarms.

"Always will be delivered on time and the product was good" Read more

"Perfect." Read more

"Great product" Read more

"This is a fine product for what it is. IT IS NOT is a smoke detector, and it MUST NEVER be used to replace one...." Read more

33 customers mention33 positive0 negative

Customers find the installation of the gas smoke fire alarm simple and easy. They mention that it is a simple product that can be wired easily and that it interconnects seamlessly. They also say that it's inexpensive and easy to find online or in hardware stores.

"...Good price, easy install, and the right product for the application. Thankfully, no fires yet to test the function." Read more

"I rated this as 'easy to install' , but to be fair, I hired an electrician to do it properly for us. He did say it was an easy install, though...." Read more

"...smokes and smoke/COs that are part of my installation, and interconnects seamlessly with them...." Read more

"...The installation was quick, about five minutes per alarm...." Read more

29 customers mention25 positive4 negative

Customers like the connectivity of the gas smoke fire alarm. They mention it's easy to install, works great when wired into their existing smoke alarm system, and gives every indication of performing perfectly for years. They also say there are no issues with it and it does what it'd be expected to do. Some mention that the interconnect system works as designed and the latching feature works as expected. Overall, most are satisfied with the connectivity and integration of the product with other BRK hardwire alarms.

"...Good price, easy install, and the right product for the application. Thankfully, no fires yet to test the function." Read more

"...When testing the system, it is LOUD and works perfectly." Read more

"...The interconnect system works as designed, and the latching feature..." Read more

"...They work perfectly!My First Alert units are Smoke Detector 3120B & 9120B, CO Detector SC7010B. Hope this helps others!" Read more

9 customers mention7 positive2 negative

Customers like the value of the gas smoke fire alarm. They mention it's a good investment and has a great price to value.

"...Good price, easy install, and the right product for the application. Thankfully, no fires yet to test the function." Read more

"...tell you which one sounded if they are triggered, and they are very inexpensive. I am assuming that they'll work in a real emergency. :)..." Read more

"...units again as I feel they add an additional layer of safety at a reasonable cost." Read more

"They are pricey, but do you want something on sale or heavily discounted for your home or barn or your kids and grand kids hangouts?..." Read more

16 customers mention5 positive11 negative

Customers are mixed about the noise produced by the gas smoke fire alarm. Some mention that it is loud and works perfectly, while others say that it chirps even with a new battery. Some customers also report that the horn is loud.

"...The horn is loud, though this is not relevant in my application because an interconnected smoke in my bedroom will also sound if the alarm is..." Read more

"...However, I wish that the units were louder as I am not sure that they would awaken me at night...." Read more

"...When testing the system, it is LOUD and works perfectly." Read more

"Ordered two of these (one for spare) to use in the kitchen. Both chirpped from the moment they were plugged in...." Read more

8 customers mention5 positive3 negative

Customers are mixed about the compatibility of the gas smoke fire alarm. Some mention that it syncs with their indoor smoke alarms, links perfectly with their system, and is easy to install. However, others say that Kidde and BRK alarms are not compatible on an interconnected system.

"...What I like best is that he wired it to connect to our indoor smoke alarms...." Read more

"...Note that Kidde and BRK alarms are not compatible on an interconnected system, so you have to go all Kidde, or all BRK/First Alert alarms..." Read more

"...It syncs with our indoor smoke alarms. Bought and installed this one myself, and since it has a 10-year warranty, so have 9 yrs...." Read more

"...Replacement was a snap and new sensors interconnected to others seamlessly." Read more

6 customers mention4 positive2 negative

Customers are mixed about the versatility of the gas smoke fire alarm. Some mention it's great for the garage, good for kitchen, and smokey kitchens, while others say it'd be useless for bedrooms, hallways, living rooms, and an attic.

"Perfect for a garage! Will tolerate heat and cold." Read more

"...It is not for bedrooms, hallways, living rooms. It is intended and certified for unoccupied spaces like garages, attics, furnace rooms...." Read more

"No false alarms. great for smokey kitchens." Read more

"Perfect for garage workshop" Read more

9 customers mention2 positive7 negative

Customers are dissatisfied with the battery life of the gas smoke fire alarm. They mention that it eats battery quickly, and does not work long with battery alone.

"Poor battery life, I assume that these are really for hardwired applications where the battery is simply back up power for outages." Read more

"...not close to electric source, so use battery power only, batteries last about 11 weeks." Read more

"...Well, it works great on just the battery alone...." Read more

"...I would have gave this 5 stars but there was no battery and it is supposed to come with one...." Read more

Reliable
5 Stars
Reliable
Great product
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Top reviews from the United States

Sharon
5.0 out of 5 stars Delivered on time
Reviewed in the United States on February 26, 2024
Verified Purchase
Always will be delivered on time and the product was good
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North Shore
5.0 out of 5 stars Excellent protection for the garage
Reviewed in the United States on April 7, 2024
Verified Purchase
When our home was built the electrician put a standard smoke detector in the attached garage, connected to the whole house system. That's not appropriate due to dust and temperature changes causing false alarms. We'd pulled it out YEARS ago. This heat detector easily replaced the smoke detector and integrates into the system with the smoke/CO detectors in the living space. Good price, easy install, and the right product for the application. Thankfully, no fires yet to test the function.
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CheekyMonkey
5.0 out of 5 stars This alarm linked perfectly with our system.
Reviewed in the United States on November 8, 2023
Verified Purchase
I rated this as 'easy to install' , but to be fair, I hired an electrician to do it properly for us. He did say it was an easy install, though. What I like best is that he wired it to connect to our indoor smoke alarms. This way, if a fire starts in the garage, sets off the heat detector, and we do not hear it while we are at the other end of our home, it will also sound every smoke alarm in the house so we cannot miss the warning. I bought this one purposely as it is the same brand as our smoke detectors. When testing the system, it is LOUD and works perfectly.
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Gadget Guy 123
4.0 out of 5 stars NOT A SMOKE DETECTOR. NOT FOR BEDROOMS OR LIVING AREA.
Reviewed in the United States on July 9, 2023
Verified Purchase
This is a fine product for what it is. IT IS NOT is a smoke detector, and it MUST NEVER be used to replace one. It does not provide protection for people in sleeping or living areas. PLEASE DON'T BUY THIS to use as a "less sensitive smoke alarm!" It is not for bedrooms, hallways, living rooms.
It is intended and certified for unoccupied spaces like garages, attics, furnace rooms. It will alarm at 135 degrees, much later than a smoke alarm would have sounded. IT DOESN'T REPLACE SMOKE ALARMS.
I trained and worked in fire protection systems for two decades. I have installed this unit in my boiler room, attic, and garage. But I have ionization detectors and photoelectric detectors in the living areas.
It scares me that people think a HEAT alarm is early-warning protection for your family; it's NOT.
Please get a SMOKE detector for the areas where people sleep. Put this only where it's supposed to be.
15 people found this helpful
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M. J. Mccaffrey
5.0 out of 5 stars Simple installation; integrates well with other BRK hardwire alarms
Reviewed in the United States on April 5, 2010
Verified Purchase
Smoke and CO alarms are essential for most spaces in a residential structure. They are not appropriate in areas where smoke, high humidity, airborne particles, or trace amounts of carbon monoxide are considered normal. This includes furnace rooms, laundry rooms with gas-fired dryers, and similar rooms.

The HD6135FB heat alarm is the right device for these areas. It is similar in appearance to the BRK smokes and smoke/COs that are part of my installation, and interconnects seamlessly with them.

For new construction or renovation, installation is as close to turnkey as it gets. Install a dedicated 3-wire circuit that hits all of your alarm locations. (The third wire, usually red, is a signaling trunk for the alarms. It must not be connected to current.) Install a ceiling work box at each location. A separate plastic mounting ring is attached to the ceiling box with the included screws. Connections are made to a pigtail connector: black to black, white to white, and red to orange (which needs to be stripped). No ground. Attach the connector to the alarm, and rotate onto the mounting ring. Pull the plastic battery disabling strip from its slot, and your installation is complete.

This device includes an infrared remote sensing module, which responds to just about any button press from most consumer electronics remote controls. In my tests, it did not work with my Onkyo receiver's remote, but responded just fine to VOL or CHANNEL presses from my TiVo remote. This is a clever and insightful application of what amounts to "spare parts." I would guess that many people have remotes to products that they no longer use. Throwing in a couple of batteries and leaving this near the alarm is a great reuse of an otherwise-useless device.

This alarm is designed to sense temperature rises, and will thus work well in locations that are inherently high-temperature, such as a furnace room. For obvious reasons I don't plan to test it with live flames, but will need to trust the manufacturer and Underwriters Labs on this one. The horn is loud, though this is not relevant in my application because an interconnected smoke in my bedroom will also sound if the alarm is triggered. The interconnect system works as designed, and the latching feature (a red light continues to blink after the alarm condition goes away, so you know which one tripped the system) is useful.

I recommend this unit as part of a larger system.
13 people found this helpful
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