How to Install Smoke and Carbon Monoxide Detectors | Ask This Old House
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- Опубликовано: 22 июн 2016
- Scott Caron, master electrician for Ask This Old House, wires an old house with new smoke and carbon monoxide detectors.
#ThisOldHouse #AskTOH
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Steps for How to Install Smoke and Carbon Monoxide Detectors:
1. Mark the location of each smoke detector on the ceiling.
2. Use a drill and long, stiff wire to bore a small-diameter hole through the ceiling and into the attic.
3. Go into the attic and check for obstructions around the small holes. If necessary, use a circular saw to cut open the attic floor.
4. At each smoke detector location, use a drill and a 4-inch-diameter hole saw with dust shield to cut a hole through the ceiling for a round old-work electrical box.
5. Run nonmetallic electrical cable from an existing outlet in the attic to each of the smoke detector locations.
6. Cut the cable and pull it through an old-work electrical box. Push the box into the ceiling hole and tighten the screws to lock the box to the ceiling. Repeat for each ceiling hole.
7. Screw the smoke detector's mounting plate to the box, then make the wire connections: black to black, white to white, red to orange.
8. Gently tuck the wires into the box, then twist and lock the smoke detector onto the mounting plate.
9. Install a combination smoke and carbon monoxide detector on each level of the home and within 10 feet of the bedrooms.
10. Pull a new electrical cable down from the attic into the basement.
11. In the basement, install a standard hardwired combination smoke and carbon monoxide detector, and a two-piece wireless smoke and carbon monoxide detector. Mount the battery-powered wireless half of the detector on the first-floor ceiling.
12. Make the final wire connections in the attic, then test each detector to make sure all of them are operating properly.
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How to Install Smoke and Carbon Monoxide Detectors | Ask This Old House
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Superb EDITING credits to the This Old house , so much better than every one trying to show how to do it their way ⭐️⭐️✅
Thanks for the information Johnny
needed this to reengineer the fire alarms in my house thank you for the wiring tips
Did you use a 4 inch hole saw to make the boxes to fit? I purchased the blue plastic connection boxes showing in your video.
Good tips!
very good video ,thanks.
Awesome video thanks
Great idea 💡
There are so many new innovative smoke detectors, the ones installed in this video are dinosaurs.
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He ones here are still pretty good (at least for the US, Europeans are leages ahead of us)
Thank you for this tutorial.
great video. i was able to replace my two smoke detectors. thank you.
I’m about to do this soon
I liked a lot , here in Brazil we do not have that device in the home...... very Good
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Laguna
Love to know you?
I like how it catches the dust
You said, on the upper floor, that the alarms needed two power sources according to code, then on the first floor you installed a battery only unit. I'm not an expert on the code but is that allowed? Also, you can use bridge units to join a wireless trigger unit to the wired ones.
When renovating a home it is required to have all smoke and carbon monoxide detectors hardwired, interconnected with back-up batteries. Wireless is a good option, if you are not opening up walls.
@jay fine Thanks, that makes sense. My first post here was 3 years ago!
Can I use normal 3cord x1.5mm flexible cableto wire smoke alarm
How did you had the wireless smoke detector talking to the fire alarm system with the wires? Can you please tell which model numbers of the first alert were installed in this video?
I think the 2 in the basement are connected to each other and the wireless is connected to one of them
It uses a wireless type signal to communicate with the one in the basement which will then connect to the second one and send the signal to the rest of the smoke alarms (i know as we have a similar model ours is the sc0500 i believe)
que bien.practico.y eficas
changed my smoked to detectors for same new ones now one in the master bedroom does not sound with the others when testing
He never mentioned there are two kind of smoke alarms, ionization and photoelectric. Ionization is better for quickly flaming fires and photoelectric is better for slow smoldering fires, and most fire departments and building codes like them both in the house. The best is a 2-in-1 unit that has both types.
IAmNotAFunguy yea he never mention them well I fell bad for this lady thank to Scott
Now I heard that it burnt to the ground because of him not disclosing every kind of smoke detector there is
this video will explain everything
ruclips.net/video/714NB7CVrpA/видео.html
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Most combination alarms are Carbon Monoxide and Ionization.
If code requires 2 sources of power to your detectors how do you get away with just a battery operated on the first floor?
LMAO
If smoke detectors are being installed in a home built prior to the hardwire code requirement than wireless smoke detectors with a non removable 10 year battery can be used. If a house is undergoing extensive renovation which would allow for the routing of hardwire power cables than the new detectors must be hardwired.
Lllllllllllllllllllooooooooo
He put a second smoke detector in the basement.
@@LeroyZee for backup of smoke detector(late reply)
@1:30 : “Upp, there it is, right through my knee cap....No worries, I’m ok, I have another one !
What type of electrical wire did you use?
Kevin almost just lost a kneecap.
I see how you wired the fire alarms but how did you wire it into the outlet in the Attic.? I noticed it's a 14-3 Romex so where did you connect the red for power was there a 14-3 already in there? What if it's a 14 -2 that's already existing there?
I’m sure he pigtailed the hot & neutral from the back of the outlet and didn’t use the red wire
The 14/3 red wire is just needed for communication in between devices. It should not be tied into a power source. So a14/2 is your power supply.
But in this video that means it's not talking to the lower floor devices unless he pulls a new interconnecting wire or uses a remote transmitter of some kind.
That's so informative
Might use this information when I get my own hardwired Smoke/CO alarms
Do all the detectors need to be on the same power source? Can detectors on different floors have different power sources as long as they are all connected to a single red wire running from one the next?
They can have different power sources. As long as the interconnect wire is connected they’ll all sound
Pls can I get a technical report on this
Boy can't have it any easier then that running wires
This was a great video. Unfortunately I need to do a hardwired install in the location you put wireless. Any advice on running the cables?
I'm pretty sure you take the same steps Scott took (run romex from a nearby power source to each location) without having access to an attic. There are plenty of videos showing you how to do that
That's a nice house
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Where does the end of the orange wire connect to
Hi I have noticed the smoke alarm beeping,I have disconnected it from the wire but I noticed the beeping has moved to the ceiling light and its continuously beeping every 5-10 sec 24/7.Any solutions please?
Thanks
Battery needs changing... if you can't figured that out then hire a handyman for ALL issues in the future.
Just find an exact replacement for it if you've done the battery change and it still does it . These have maximum lifespans and some will beep at that point, or they just crap out over time. The same model will fit the existing mount and so it can be swapped out in like 1 minute time.
Love the show. Always interesting seeing how it's done overseas.
89
I love the video
How many inches from the wall did you measure
@ThisOldHouse if you mute a detector in one room will if mute all of the others?
Ayan Hussain no
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wonder cost of labor I have to install 6 in my house, and I prefer to be wired
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@@brandonwilson4281 👻
Would be good to know what cables they used? maybe it's 14/3?
14/3 is ideal for smoke detectors.
For smoke detectors where exactly in a bedroom go?? Like what's a best location in a bedroom... How far away from vents or it doesn't matter?
On the ceiling in front of the door. Sometimes one on both sides of the door for extra safety(apartment code).
@@gangisspawn1 Thanks
Can i wire different brand ?
I know I have to change the base ..
It's preferred they are all same brand to ensure communication, but try it
Loop you tape into itself, it makes for easy removal, I've heard it call the buddy tab idk just don't get fired
Nice Device
Great plastic shield, Where can I buy one.
PlayGirl It's just your standard cheep plastic bowl from the kitchen section with a small hole in the bottom.
Alec Ver Bunker it's a great idea and could be sold as a tool.
PlayGirl they do sell it as a tool but for much more then it's worth. I use a plastic salad bowl and it works just as well.
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Imperial Walker spotted at 0:54
Superb
I also use that type of wiring
Will 12/2 wire work or 12/3. I noticed he had red wire?
12/3 for alarms with a red interconnect wire and 12/2 for alarms without that extra wire
I love how they make everything up
Dude, saw comment about on knees before watching...Lmfao. Laurel & Hardy level potential.
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Pot twist: The metal rod goes through Kevin
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🤣
I’m o
Plot*
@@venividivici4253😂😂😂
full episode not availiable in this link
Hey I have question how connect the smoke detector to the breaker box
It is connected to the outlet in the attic which is already connected to the breaker box.
gavilan juarez it’s straight 120 line voltage
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@@lmd6204 🔥
Is it required to shut off power in the house while attaching those colored 3 wires?
Wdt
.
.
..?..
Definitely turn it off. Only after you got it wired in and have a modular connector for future replacement would you not need to turn power off (works light plugging in socket).
Is it possible to get them all to chirp at the same time?
That’s what the red wire does
Imagine that metal rod would drill his knee 😂😂
my exact thought "and now it goes straight thru his knee instead" 😂
Good
nice
why wasn;t the second screw in the first box he wired screwed down?
Correct me if I'm wrong, but the last I heard the NEC says that smoke detectors should be on a separate circuit. I get that you guys did this so it's more user friendly, but the job should be done to code for today.
codes change depending of the country/state.
If the NEC states it should be on its own circuit ( individual branch circuit ) I would be interested in that chapter and section or if it's an amendment to NFPA 70 written into law and approved in a specific state or commonwealth. I'm almost inclined to point towards NFPA 72 if that even exists.
Sigvulcanas you are correct. Hard wire smoke detectors must be on one circuit and are NOT allowed to be GFCI or AFCI protected.
WRONG!!! NEC section 210.12 requires 120v smoke alarms to be on Arc Fault circuits.
They should be interconnected and on one circuit. There is debate on weather they should be alone on a circuit, or be on a shared circuit. NEC, NFPA, and IRC do not weigh in on the matter. Some state and local AHJ have made a determination one way or another, and they have the final say. The fire prevention community is leaning toward being on a shared circuit, so that if the breaker is tripped, the occupants will be more likely to notice it, whereas if the alarms are by themself, someone might turn off the breaker to silence a false alarm, and then never turn them back on.
International Code Council Electrical Code (ICCEC) :Section 1202.5 states: "Smoke detectors required by the International Building Code and installed within dwelling units shall not be connected as the only load on a branch circuit. Such detectors shall be supplied by branch circuits having lighting loads consisting of lighting outlets in habitable spaces."
We need for this my company
Wow very nice job,is that a new type of smoke detectors the other one?
Sending the wires to these devices is cumbersome but there is no way out of it... Great for remodel work but I don't recommend if it was going to be inspected it will be a no pass.. Why? All devices need a dedicated circuit and they all need to be hardwired... That's what happened to me in LA...
NevrBDwn Ruby does not need to be on a dedicated circuit.
What was the second one for? To get him out of trouble? Are the cops after him?
😁😁you just made me spill my coffee
The most unrealistic attic I’ve ever seen 😂
Plz upload ull episode of this video
عمل رائع
We need for this my company
What kind of wire that you use in smoke detector ?
Dj tippler 14/3 NMD 90
Because carbon monoxide is slightly lighter than air and also because it may be found with warm, rising air, detectors should be placed on a wall about 5 feet above the floor
No, they should be on the ceiling.
I would love to see some one actually put a co alarm 5 feet above the ground but no one does it because of aesthetic reasons
Aren't fire alarm systems supposed to be on a dedicated circuit?
Some places require a dedicated circuit. He said if someone turned the circuit breaker to the dedicated circuit, no one would know. However, I think the alarm with a battery backup would beep if the AC power is turned off.
@@easyroc75 Yes, though the system is supposed to have redundancy. Supposed everyone is awa for a weekend and that circuit trips and battery power goes out within the 24 hour limit or 48 depending on how much juice is in it? Come back don't realize that cicuit is off because it's on a circuit not being used and boom, fire while your family is sleeping.
What good is that if thay are not home
I've always heard that carbon monoxide detectors should be low to the ground, since carbon monoxide sinks. Is this wrong?
It doesn't really matter what height they are at, CO spreads pretty evenly throughout a given area.
Thanks to this old house addiction 34 yrs ago I bought an old house - lol - it’s a bit older now …lol?
Wow, i know your code is different from scotland, but why no earth sleeving?? It just makes sense. Any US sparky would learn alot if they worked over here for a few days.
It's not necessary to have the ground/earh covered since it's not a normal current carrying conductor, and usually bonded to the back of a metal box. North American codes say that the ground/earth must be identified with green insulation, green with a yellow stripe, or bare coper. I believe Australia also has a bare ground/earth conductor in their NM cable/twin and earth.
ho yes
I wanted to know that .
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Zzz😼
@@brandonwilson4281 dhegjegjwgejegeuegeigruegeufeyegjegejegehegeje
If battery is moved but powered by wire, will it always chirp?
yes, the battery is only if the power goes out. If it's also hard wired your good.
there's usually voltage monitoring for the backup battery so if it gets old the battery can invoke the chirping to start.
Bugger the smoke detectors, what were those red terminal caps you were twisting wires together with?
Ive done electrics for a long time in the UK and have never seen such things before.
would save time over solder and shrink wrap that's for sure.
en.wikipedia.org/wiki/Twist-on_wire_connector
super cheap in any hardware store.
www.homedepot.com/p/Wire-Connector-Assortment-25-Pack-775128/202894260
thank you :)
ArmyOfAll just remember its 110v in the us compared to 220 over there
James Jennings not being cocky but letting u know its 240~250 volts. So soldering is a musg
Was there a battery in the wireless one he installed? I didn't see one.
At 6:12 that's the battery and wireless one he installed
2:20 why did it look like an arc cutting the saw?
Most likely friction from the metal wholesaw against the wood but definitely not an electrical arc
It’s so terrifying to hear a robot voice at night saying warning Carbon Monoxide, especially since it echos the entire house, but I’d rather live than die from Carbon Monoxide
My washer is broken and I want a new washer thanks.
gurminder singh just get a new one
Go to home Depot or lowes to go pay for a new one.
i like Barcelona
There is jo way i could have been in that attic while he was drilling those rods without screaming " oh god my knee, you drilled it through my knee".
Quick Question, if a person is hearing impaired and is living alone, how can she/he knows if a fire is starting?
They make smoke detectors with strobes, perfect for someone that is hearing impaired.
+bobloblaws911 those vibrator alerts are very handy usually they install them between then individuals private parts for max alertness and stimulation
THEN THEYRE FUUUUCKED!!!!!!!!!!!!!@!!%
Jack where can you buy them?
Mark R they make horn strobes for that situation
Kevin!!! 🏡
I had professionals install 5 of those and it wasn't cheap
I'm curious how much it was. I am guessing $80 per unit plus labor and materials. Maybe around $900?
I saw sparks at 2:20
So if my cooking sets off my detector how do I turn it off?
Use a shotgun
7:07 he is using too much smoke, one spray is enough. you will damage it.
Ikr
Spray
@Anthony Lee The smoke alarm...
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@@brandonwilson4281 shut up
If you want even more information on this subject, see this video!
ruclips.net/video/714NB7CVrpA/видео.html
How do I what is code for the state/county that I reside in?
You can get a copy of the National Electrical Code (NEC) NFPA 70 from Barnes and Noble. That's a massive book with codes for just about anything that uses electricity. This is a national standard and state and local codes use the NEC as a basis for their own codes. As far as local codes, I would check with your town/city hall or maybe a fire station.
Can of smoke is better than the test button
0:51 Amy from TBBT on wall :D
very educative
No Red FPLR Alarm Cable? Why?
120 volt units . They are not connected to a alarm system
It's a house, not a hospital.
How much does this service cost?
5:20 First Alert SC9120B
11-- how interconnected ?
The red wire connects between the smoke detectors, this red wire is called the signal wire, as soon as one detects smoke it carries the signal to the rest
Treasper Killa thanks, about wireless how take signal to the others?
1:20 Owie the metal rod is in my knee
2:21, an electrical wire???