Hot Topics: Furnace vs Smoke Detector

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Safety equipment has to be installed safely. False alarms are more than just annoying, they reduce the effectiveness of the system. So, when you have an appliance that produces fire, where do you put the detector to alert you only when that fire is too big, or too smoky? The Forum clears the air.

Original Post: Furnace and Smoke Detector

ardmi Member

Not sure where else to post this... Do you think placing a smoke/fire alarm above or around a gas furnace is a bad idea... nuisance alarms??

Do you have a smoke detector in your furnace room?

Highlights from the Thread

Muggle Member

Should be okay. Use the photo-electric type. Supposed to be less prone to false alarms.

If you've got a natural draft furnace or water heater, you should put a CO alarm in there to get an early warning. A blocked chimney is all it takes.

PJmax Forum Topic Moderator

I wouldn't put it right over the furnace. Nearby is ok.

My gas furnace, gas water heater and gas dryer are in the basement and I have a smoke detector there. You go up three steps to the lower level in a split level house and I have a smoke and a CO detector there.

Furd Member

Most manufacturers of smoke and CO alarms specifically state to NOT install their products near a furnace. If you have an alarm system in the house I would suggest a combination fixed temperature and rate-of-temperature-rise detector connected to the alarm system.

chrisexv6 Member

What Furd said. In our equipment room/area I used a fixed temp rate of rise detector. Outside the equipment room (thru a door and about 20-feet from the furnace/water heater) I added a CO detector and a normal smoke detector.

I don’t have a link but I’m pretty sure you can Google around and find the UL "rules" for an alarm install. And I’m pretty sure it will lay out that you can’t use a smoke within X feet of a combustible appliance... the rules are geared towards preventing falses. Do the same in a kitchen if you have an oven... heat detector only, so the fire department doesn’t show up because you burnt your TV dinner.

Muggle Member

CO alarms can be placed safely beside a combustion appliance without false trips. The alarms are time weighted and don't go off below 70 ppm. You're not even supposed to have that in the exhaust.

tinmantu Member

With my wife’s cooking, I had to resort to one of these.

Hot Topics-Furnace vs Smoke Detector, redneck fire alarm

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