Cabin fan to heat underbelly

[COLRetired]

We live in a Solitude fifth wheel so I don't know if this will work for you. My husband installed a cheap heat system https://www.rvcomfortsystems.com/ in our rig. This system makes it possible for your furnace run on either propane or electricity with a flip of a switch inside the rig. He installed this system in late fall of 2018. We were filling our propane tanks every 4 days at the point. Once installed we didn't fill our propane tanks until mid March...my husband figured out it had paid for itself in February. -17 degrees is the lowest temperature that we have experienced using this system--it kept the trailer at 72 degrees without a problem. So in the winter we have cheap heat (free heat if the campground doesn't meter the electricity), skirts and tank heaters. We also monitor the temperature under the rig just in case.

[suitcaseisfull]

Here’s a post I just did.

https://www.mygrandrv.com/forum/show...-to-underbelly