Carbon monoxide detectors are legally required in every California residential dwelling — but having a CO detector installed is not the same as having a functioning CO detector. In Placentia, where aging gas furnaces are common, CO detector condition is a genuine life safety issue. Here’s the complete guide to CO detectors for Placentia homeowners.
Pulse Heating and Air checks CO detector status at every Placentia furnace service visit and advises on replacement when detectors are past their sensor life.
CO Detector Facts Every Placentia Homeowner Should Know
CO Detectors Expire — Most People Don’t Know This
The electrochemical sensor inside a CO detector degrades over time. Most CO detectors are rated for 5–7 years from manufacture date. After that period, the sensor may no longer reliably detect CO — even if the device appears to function and the batteries are fresh. Check the manufacture date on the back of every CO detector in your Placentia home. If any detector is over 7 years old, replace it before the heating season regardless of battery status.
Where CO Detectors Should Be Located
California law requires CO detectors outside each sleeping area and on each floor of the home. In Placentia homes with a central furnace in a hallway or utility closet, a detector in the hallway near the furnace room is appropriate — in addition to the sleeping area detectors. The detector should be at breathing height (mid-wall or higher) rather than floor level.
What to Do If the CO Detector Alarms
Evacuate immediately. Do not stop to investigate. Call 911 from outside or a neighbor’s home. Do not re-enter until cleared by fire department. A CO alarm is a medical emergency, not a nuisance alarm. Call Pulse Heating and Air at (714) 908-3868 for a CO safety inspection once the property has been cleared.
Frequently Asked Questions
How do I know if my Placentia CO detector is still working?
Press the test button — it tests the alarm and electronic function, but NOT the sensor element. The only way to know the sensor is still valid is to check the manufacture date and replace if over 7 years old. If in doubt, replace. CO detectors cost $20–60 at any hardware store.
Does Pulse Heating and Air check CO detectors during furnace service?
Yes. We check detector location and manufacture dates at every Placentia furnace service visit and advise on replacement when warranted. This is part of our standard fall service protocol. Call (714) 908-3868 to schedule.
CO detector and furnace safety in Placentia. Call Pulse Heating and Air at (714) 908-3868 — Serving Placentia and all of Orange County
We serve Atwood, Golden Hills, Kraemer, Chapman Hills, and all Placentia neighborhoods.
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