Inspected this Tank-Less boiler yesterday. I don’t see many of them but the ones I do alway have the air intake on the outside.
This one had it on the inside of the basement. The basement was only 25x25 and the only fresh air source is from the basement entry steps. There are no windows in the basement and also has the Evaporator/blower for the A/C.
My concern is the oxygen depletion in the basement. Without doing the math for ACH, i feel that this should be noted in my report.
Anyone else experience this?