B+ motorhomes

We used to loose power every winter in our old home which was on a very lousy rural power system. I kept the motorhome fuel tank full for the generator and 4 - 5 gallon gas containers for a Kawasaki 2800 watt generator we had. The house's LP furnace and water pump were about 5 feet a part, both I had wired with a 12 gauge cords to 110V outlets. I made up a 4 gang utility box with a 1 foot cord, that hung on a hook by the furnace that both could plug into. That box in turn could be attached to 50' 12 gauge that could be switched between the motorhome and the small generator. Not pretty, but kept us from being cold for a few of hours to up to 4 days one time, over 18 years.