Originally Posted by Dray55
Just purchased 1998 American eagle and as I was checking out furnaces got fumes in coach. Noticed a 2 inch hose running behind water compartment plate thru the water lines that was rotted out.my question is what does it do.
Welcome to iRV2.
Can't help with the 2" hose question. Is this a "water hose", thin wall flex hose (like heater duct), other?
A quick check to see if the combustion chamber of the furnace has a leak to the interior is to find a smoker. With furnace just cycled on (so fan running, but no propane/flame) have them blow smoke into the furnace intake on the side of the coach. If you smell cigarette smoke inside, time for a full furnace check or replacement.
This is a good 30 second check for anyone with a propane furnace as part of routine annual preventive maintenance.