Forum Discussion
dougrainer
Mar 24, 2016Nomad
I went thru this last year with a Cruiser Travel trailer. The customer had the exact same problem on a 28 foot with 1 slide. They installed a 20k Suburban. I do not have the formula at home, but Suburban gave me the number you use to take the Square Foot of the trailer and the number you multiply with to get the BTU size furnace. I had to remove the too small Furnace and `since the larger would not fit in same exact spot I had to install a 30k and cut a hole in the side of the trailer where the old furnace was. Cruiser also denied and stated that that furnace was the correct size, but after I gave then Suburbans figures they paid for the modification. If you call Suburban they will give you that figure to use. The 30k was just at the limit for this size trailer. I can guarantee you, your furnace is WAY undersized for your size trailer. Doug
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