Carbon monoxide is colorless, odorless, and it sends tens of thousands of Americans to the ER every year. If your home has a gas stove, furnace, water heater, or fireplace — or an attached garage — you need working CO detection. New Hampshire code requires it in most residences, and winter is exactly when risk peaks: sealed windows, running furnaces, snow-blocked vents.
Where they go: one on every level of the home, one near every sleeping area, and never right next to the stove itself (cooking causes nuisance alarms — a few feet of distance fixes it).
What to buy: a UL-listed alarm with battery backup. The digital-readout models are worth the few extra dollars because they show low-level concentrations long before the alarm threshold.
When to replace: CO sensors wear out. If yours is more than 7 years old, it may look fine and detect nothing. Check the date on the back — today.
We supply and install detectors with any service visit, and every gas safety inspection includes CO spot-checks at your appliances. Stay warm out there — safely.