kittenrice t1_j2nvjr1 wrote
Reply to comment by thirdeyefish in Something is causing CO2 buildup in part of the house- how do I secure the windows so I can ventilate it? by [deleted]
CO alarms are commonly installed in homes, CO2 alarms are not.
CO2 is a common misspelling of CO. So common that google just assumes you're an idiot and gives you results for CO alarms.
OP has a CO problem. Possibly a cracked heat exchanger, if they have a forced air furnace. Or a bad flue pipe, or negative pressure pulling exhaust back inside the home.
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