ok, i see. my assumption is that they would measure the combustion air flow with the sail switch. it appears they are measuring the room air flow. i'm sure they had their reason for this but it looks like a misplaced safety device. if u have a restriction in the combustion air flow, what prevents it from putting gas in and trying to ignite it? ie dirt dobbers building in the in the combustion air in or out...
Thanks again to all who replied. These sound like solid suggestions and will have my husband go through them (it sounds a little Greek to me). I will continue forwarding suggestions to him. We Both appreciate your help and time.
bodzcamper 1 of 2
Ty again to all who helped! It turned out to be insulation was blocking the air flow! we took the cover off of the front and you could see chunks, clumps, and gobs of it. After we fished it all out, air and heat flowed very well. Even the farthest duct had enough airflow to create a breeze through my hair from 5'4" away. Thats as technical a description I can give. Lol
TY all!
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