Questions tagged [smoke-detectors]

Device for detecting smoke and/or fire.

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1
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1answer
13 views

Smoke detector position vs air register

Are there regulations about positioning a smoke detector in the vicinity of an air register? I would like to position it within 3 ft aerial distance but I'm concerned the air flow might be blowing ...
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0answers
37 views

Repurposing smoke detector power as fixture power

I removed a wired smoke detector and replaced it with a popular wifi-enabled battery-powered model. I'm left with a box that has: a black wire a white wire a red wire a ground I'm assuming the ...
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1answer
99 views

How to interconnect Kidde smoke/co combo detectors Mod# KN-cope_IC with Edwards Heat detectors Mod# CR-135-2 using relay SM120X

How do you wire the above units so the smoke/co detectors will all ring when heat detectors are activated. The heat detectors are a two wire hook-up. Existing wiring to heat detectors is existing and ...
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1answer
303 views

Counting Smoke Detector Wires In Junction Box

I want to connect a wire to get power for for a ceiling fan to an existing junction box in the attic that is used right now only for a smoke detector. Box currently has a 12-3 wire coming in, and the ...
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0answers
43 views

What could cause smoke detector false alarms in different rooms, a few days apart?

We purchased a 17-year-old home in Florida (USA) a few months ago, that has seven smoke detectors (one in each of its four bedrooms, two in hallways, and one in the main living space). A few days ago,...
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5answers
18k views

How do I choose between ionization and photoelectric smoke alarms?

I need to change my smoke detectors but I don't know how to choose between ionization and photoelectric smoke alarms. I guess that there are pros and cons to choose one or the other. Should I buy a ...
2
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3answers
61 views

How can I lift the latch of the battery compartment in this smoke alarm detector?

First of all, I'm a bit embarrassed I cannot figure this out myself. I have looked up Youtube videos, Google searched but I didn't find any exact video. Plus I have tried pressing it hard, lifting ...
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2answers
35 views

Wiring smokes in series: one smoke beeps a lot

We wired three smokes. However, every so often (but always in the middle of the night) one of them starts beeping. I suspect that it is not actually being powered by electricity, but off the battery. ...
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8answers
28k views

Should a smoke alarm be installed in the attic?

I installed hard-wired and interconnected smoke alarms through the house. I wondered, though, if a fire spread through my attic I might not know about it until the ceiling or roof collapsed. Should I ...
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0answers
366 views

Can a smoke alarm with cut wires cause a fire?

Can a smoke alarm with cut wires cause a fire? Not, that it might not detect a fire (I don't expect it to any more), but that the smoke detector itself may cause a fire. For my specific case, I cut ...
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0answers
105 views

How do i replace the battery in this smoke detector? It wont stop beeping

Its been beeping for ages and im sick of it, ive tried sliding as it says to but ive had no luck...
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4answers
2k views

Should lintels above wall portals be considered for smoke alarm placement?

I need to place a smoke alarm on my first floor (no sleeping areas). There is a wall portal with a 15" lintel (see image) between the living room and the dining room. I am unsure whether one alarm is ...
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4answers
116 views

Should my carbon monoxide detector be reporting zero PPM?

I've got a Carbon monoxide detector hanging in my kitchen for a few years now. Lately I've noticed it reads a PPM of 0 (zero). Is this right? Doesn't the air contains around 400 ppm? In other words, ...
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1answer
1k views

Nest Protect Expiration Date

I just bought a set of Nest Protects and after opening the first one I noticed that its manufacture date was almost a year ago and that the expiration date was 10 years from the manufacture date, not ...
0
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1answer
123 views

What is this electrical device?

At 3:30 am a couple days ago, the smoke detectors went off. Not the 'low battery' noise, but full alarm triggering the others to sound off as well. I checked around, and with no actual issue, pulled ...
4
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3answers
8k views

What could cause the battery in a smoke detector to heat up?

One of my smoke detectors was chirping and when I removed the 9V battery, I found it was hot. In fact, it was making a 'cooking' sound. Was it the smoke detector causing the battery to cook itself ...
0
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1answer
89 views

one-too-many smoke detector cavities?

There are two cavities in the wall. I want to replace the old smoke detector. Questions: (1) What's the big metal square thing on the right in the lower cavity, and did the lower cavity once house a ...
37
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1answer
12k views

What on earth is this small wall-mounted computer?

I live in a rented apartment, and there is this little plastic box on the wall that I had been ignoring. Here is what it looks like: There are no markings or holes on the casing. I got curious and ...
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2answers
105 views

Smoke detectors are on dedicated circuit, how can I add a light to that circuit?

The smoke detectors are currently wired to each other (2 wire) on a dedicated circuit. We want to add something that gets used often, so that we'll notice if the circuit has tripped. We would like ...
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2answers
860 views

Is this smoke detector safely connected?

I recently bought this house (built in 2000), so it went through inspection. I assumed everything was fine. I realized the smoke detector in one of the rooms was not showing the green light that the ...
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1answer
36 views

Smoke detectors (wired/wireless) - how much is enough

Our house is fairly new (2013 build year). We moved in 2016. On the second floor we have 3 wireless smoke detectors and 1 wired and on the first floor we have 1 wired smoke detector and 2 wireless. ...
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2answers
88 views

Do there exist smoke detectors with detached silencers?

I'm looking to replace a smoke detector for my kitchen, and I was wondering whether anyone had designed a smoke detector with a remote silence feature. The traditional method of keeping a stool or a ...
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3answers
84 views

Two identical fire alarms- different pitch

I recently purchased a twin pack of Kidde smoke detectors. One thing I noticed is that one sounds off at a slightly higher pitch than the other. A friend purchased two detectors of the same mode as ...
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0answers
62 views

Replacing an interconnected fire detector triggers the fire detectors in the rest of the house

I bought a Kidde KN-COSM-IBA to replace a 6 years old Firex i4618A detector that won't quit chirping even after battery replaced. Both the old and new detectors has the same wire quick connector that ...
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2answers
1k views

Can a smoke detector circuit be GFCI and CAFCI protected?

I purchased a dual GFCI/CAFCI circuit breaker to place on my circuit that contains only smoke, CO, and heat detectors inside my house. Is there anything wrong with this or can I install it to have ...
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4answers
4k views

What's the signalling voltage on hardwire smoke detectors? Mix and match?

What is the signalling voltage on hardwire smoke detectors? Is it acceptable to mix brands? Is it acceptable to have detectors on different electrical circuits, connected only with an interconnect ...
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6answers
52k views

How to open this smoke detector in order to change battery?

I need to change battery for my home smoke detector, but I have no idea how to open this model. I found many video tutorial on google, but have not seen any model similar to this one. Does anyone ...
2
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1answer
475 views

Wired fire/smoke alarms not communicating with each other

After replacing the wired fire alarms in my house with new ones, when testing any of them, that one beeps but not the others. Model is BRK First Alert 9120B6CP. Each alarm came with three cables. ...
4
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5answers
61k views

What besides smoke might trigger a hardwired smoke detector?

Sometimes my hardwired smoke alarm goes off for a few seconds for no apparent reason. For example I am not cooking or burning any substance. It is 3 years old and has a new battery. Other than ...
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1answer
50 views

Trigger an alarm with wired smoke detector

I am looking for a solution that would make the wired smoke detector in the apartment downstairs trigger an alarm. The purpose is to be alerted if there is smoke while the tenant is away/in the shower....
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1answer
69 views

Combine Lights on one switch and remove smoke detector from switch

Experts, I've got a weird wiring situation in my kitchen (just bought the house). "A" (a dimmer) in the picture controls both a light (let's call it light "X") and (wait for it) the smoke detector! ...
1
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1answer
87 views

Over-enthusiastic smoke detector

The hard-wired smoke detectors in my house all were well beyond their rated expiration. So I replaced them all. I now need to keep a broom handy whenever I use my oven or broiler -- the smoke detector ...
0
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1answer
89 views

Smoke detector at highest point of pitched ceiling - good or bad?

I have several smoke detectors in my house - all of which I can reach with a ladder - except one. It is at the highest point of the pitched ceiling in the entry way of my house. A person that is 6'5"...
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1answer
75 views

Testing a wired smoke detector system, with in-ceiling fire suppression - how to test detectors

...without setting off the sprinklers? I'm not sure wired detectors (on 3 floors of a condo) are connected to the in-ceiling fire sprinklers, so... How do I determine the detectors are all working/...
24
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3answers
7k views

Why should we replace smoke alarms every 10 years?

I'm having a hard time understanding a requirement to replace smoke detectors every 10 years (or whatever the manufacturer suggests). With previous generations of ionization based detectors, I ...
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2answers
250 views

install smoke/fire detector in basement

I would like to install smoke detector in the basement, which has the following layout: +----------------------------------------+ | | Small ...
16
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5answers
11k views

CO detector starts beeping every morning at 6am

My 2-years old CO detector (small, wall-mounted device with battery, no other power source) started beeping every morning for at least few minutes, sending sharp chirps once every 10 sec. It starts ...
9
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4answers
7k views

Can I replace an electric smoke detector with a combined smoke and carbon monoxide (CO) detector?

My house has electric smoke detectors wired into an ADT alarm system. I'm not using the alarm system but the smoke detectors seem to work anyway. I'd like to have carbon monoxide detectors too. ...
12
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4answers
5k views

Are rechargeable 9-volt batteries suitable for use in smoke detectors?

Lithium-Ion rechargeable 9V batteries are now readily available. Are they appropriate for use with hardwired smoke detectors, which typically use 9V batteries as battery backups? What about for use ...
11
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7answers
9k views

How to PROPERLY test that your smoke detectors work?

I installed two new smoke detectors in my house a few months ago and have been testing them using the 'test' buttons. Today I decided to give them a more realistic test by placing a burning and then ...
2
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1answer
812 views

How can I open this smoke detector to change the battery?

I don't know the model of this smoke detector, but it's beeping from low battery and needs to be changed. I can't figure out how to open it, so hoping someone can help! Here are some photos of it: If ...
8
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2answers
29k views

If I do not have any fuel burning devices, do I need a carbon monoxide detector?

Is there any reason that a home without any fuel burning devices would need a carbon-monoxide detector?
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3answers
4k views

Chirping from a hard-wired fire alarm

I know that when you hear a periodic chirping noise from smoke detectors, it means the battery needs to be replaced. I had been hearing such a chirping noise in my apartment building for a few hours, ...
0
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2answers
54 views

Does home security system only link to wire-powered smoke detector but not the battery-powered ones?

Currently my home has battery-powered smoke/CO detectors, I wonder if in the future I am setting up a home monitoring security system with commercial company for the whole house (to detect things like ...
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3answers
501 views

Can I mount a smoke alarm using magnets?

I am installing smoke alarms in my 1930s house. I'd rather not drill into the plaster at this time, but I want to get them mounted. I have drywall beads along the top of all my walls, so I was ...
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1answer
119 views

How can we disable an unused smoke detector?

We have wired ADT smoke detectors now. Our old free standing detector is chirping. How can we disable it without taking it off the wall?
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2answers
210 views

Can central alarm smoke detectors be used instead of 120v smoke detectors in a new residence?

Code requires that new residential construction have a smoke alarm in each bedroom and outside of each bedroom, and that the smoke alarms be interconnected. (They all go off at once). If you plan to ...
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3answers
183 views

Is it permissible to install a low-voltage fixture over an existing ceiling box?

I inherited an installation of several wired AC smoke detectors. They're three-wire units (AC hot/neutral, plus an interconnect wire). At some point a previous installer removed one of the detectors, ...
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3answers
402 views

Are all of these smoke detectors required?

My house has eight smoke detectors; one in the basement, one in an upstairs bonus room, and six on the main floor. The main floor is "T" shaped; the bedroom area forms the top of the "T", and the ...
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2answers
2k views

Red wire in ceiling box: traveler or smoke alarm interconnect?

I have an electrical box in the ceiling, currently with all the wires capped and a blank faceplate over it. Two cables coming in, both with four conductors (black, white, red, and bare). I don't know ...