Home SafetyAdvertorial

Just Got a Heater? Do This Tonight.

Heater season is carbon monoxide season. The alarm on your ceiling may not make a sound until the air is already dangerous.

By Dana Whitfield, Home & Energy DeskOct 28, 2026 · 3 min read

A plug-in detector with a live digital display on a living room wall outlet

If you bought a heater this fall, or you are about to turn the furnace on for the first time since spring, there is one thing worth doing before you go to bed tonight. It takes five seconds and it costs less than the heater.

Carbon monoxide has no smell, no color and no taste. It builds quietly in the air while you sleep. And the cold months are when it happens: 84 percent of fatal carbon monoxide incidents occur between September and April.

400+Americans die each year

100,000+ER visits each year

84%of fatal incidents, Sept to April

70 PPMwhere many alarms first sound

Why the alarm on your ceiling may stay quiet

Many standard detectors are not required to alarm until carbon monoxide reaches around 70 parts per million. At lower levels they can sit there with a green light on while you breathe it for hours. A green light tells you the battery works. It does not tell you the air is clean.

A ceiling detector with a green light crossed out: that green light does not mean you are safe

Winter makes it worse. A furnace running through the night, a space heater on in the bedroom, a gas stove used to warm the kitchen, a propane heater in the garage. Every one of them is a reason to know what is actually in your air.

See the detector that alarms at 10 PPM →

Free shipping · 90-day money back

The five second fix: a detector that shows the real number

CarbonOne Safe plugs into any outlet. No ladder, no tools, no wiring. It reads from 0 PPM and shows you the live level on its screen, all day. Not a green light and a guess. A number. Most nights it says 0, and you will feel better every time you glance at it.

If the level climbs, it alarms at 10 PPM, which is far below the 70 PPM point where many ceiling alarms first speak up. One unit watches for four things at once.

CarbonOne Safe detecting carbon monoxide, natural gas and smoke, shown plugged into a wall outlet

Carbon monoxide, natural gas, propane and smoke in one device
Live digital readout of what is in your air
Alarm at 10 PPM, not 70
Battery backup, so it keeps watching when the power goes out
Self-testing, always monitoring

What to do tonight

Plug one in near the bedrooms, or in the room where the heater runs. Put another by the furnace, the water heater or the garage door if you have a propane or gas appliance. Then press the test button on your existing smoke alarms while you are at it. Clocks go back this Sunday, which is a good reminder to do all of it at once.

CarbonOne Safe installation graphic: no ladder, no tools, no hassle

Protect tonight: get CarbonOne Safe →

Plugs in anywhere in 5 seconds

CarbonOne Safe: today's price

Official site pricing. Buy more, pay less per detector.

2-packSave 30% · $139.00 total

$69.50each

4-pack Most popularSave 45% · $218.00 total

$54.50each

8-pack Best dealSave 50% · $380.00 total

$47.50each

Free shipping
90-day money-back guarantee
17,127+ five-star reviews
Trusted by 151,637+ American families

Stock levels are low on this batch.

Get CarbonOne Safe →

Choose 2, 4 or 8 at checkout

One more thing: if you are still looking for a way to heat just the room you are in, we covered the plug-in heater that is cutting winter bills in half.

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