Quote:
Originally Posted by Old-Biscuit
The combustion side is separate form the room air side.
One motor drives both air wheels......check that room air side wheel is intact (no broken vanes/not loose on motor shaft etc)
Here is Installation Manual for the most popular Atwood Series
https://dunesport.com/manuals/atwood-furnace.pdf
Access is via exterior panel
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Thanks. I have the manual git it is vague on later access. Via the exterior panel is what I needed to know. Looks like any interior access to ducting will involve dismantling the kitchen cabinet base. Looks like I have to slide toe outer part out and support while getting access to the inside parts which may be fastened to the floor. Thanks for all of the pointers about ducting and leaks!. I primarily want to examine the burner and heat exchanger to see if the poor efficiency is due to crud acculturation, poor flame adjustment or something mechanical as suggested or just design.
I have seen some other posts that suggested that efficiency could also be improved with some ridged insulation in the exchanger area.
When I fired it up to make sure it worked I was astounded with the amount of heat that was blowing out of the exhaust. I am having visions of having to come down from my Boondocking area every week and go looking for a $150 fill up instead of just taking the car into town for food.
The coach only has 26,000 Southern miles on it so it shouldn't be worn!