mwilson
TDR MEMBER
I might make it in on Tuesday. In Kearney NE tonight. I was just east of Rock Springs Wyoming last night. I don't know how cold it got but the furnace ran about three times an hour all night long. Woke up to the CO2 detector going off. Forgot to open a window. the Rest of the Story could have been the end of the story!
Wow!!
My CO2 detector went South several years back and I was not long in ordering a new one..it went about 8 years and then started singing its death song..
But you may have an issue, we stay in ours a week in October with nights in the 30’s and never have gotten an alert with furnace running and windows closed
I would inspect the furnace intake and exhaust connection very closely...both on the external fixture and on the furnace itself.