ctilsie242 wrote:
I would look for a "cheap heat" system, which would let you run your RV furnace, but with an electric element, rather than LP gas. This will get the warm air not just circulating around, but in the basement as well.
My order of preference: RV furnace, a Vornado electric heater, a Mr. Buddy heater. The RV furnace is the safest and heats my rig the quickest with zero added humidity. The electric heater also doesn't add humidity, but doesn't heat that much, especially a medium-size, poorly insulated rig like my TT. The Mr. Buddy heater with ventilation does surprisingly well, provides you leave the top window open, and have another window open for incoming air. However, the Mr. Buddy isn't as safe or foolproof as the other ways, so I leave it for last.
While the initial cost is not cheap, we have been using the Cheap Heat system for close to a year and it works great. We have two Beagles and portable heaters would be a concern. In addition DD was a Firefighter and saw way too many fires caused by portable electric heaters. Most outlets in RVs are on 15 amp circuits on 14 gauge wire, not great for continuous use.