Rookie ~ 2 winter questions

[SR71 Jet Mech]

I actually thought it odd there was no way to run the furnace fan in an RV without burning propane myself.
I installed a 2 position switch in the convenience center with all the other switches. This one, in position 1 is closed on one set of contacts and open on the other set. When switched to position 2 it is opposite. So in position one the fan works as designed with the furnace. When in position two I have a fuse 12v wire directly to the fan and the other open contacts keep it from back feeding Power to the board.
I can now run the furnace fan, sit a forced air electric heater in front of the air return and heat the belly.
Of my 3 tanks, 2gray and one black, the galley gray dump valve is exposed, so that will freeze. Otherwise I can go to 10 degrees above.
I do also run a couple others as well. I do however run this exclusively when it’s parks in the shed plugged in to prolong winterizing just in case that one nice weekend or two pops up before Christmas.

[wiredgeorge]

Originally Posted by JRTJH

Maybe even a badge for his avatar ?????

I quit! I will never post again. Please don't beg me to start posting. I won't! I won't... really! The pain.... I might even delete my signature.

[travelin texans]

Originally Posted by wiredgeorge

I quit! I will never post again. Please don't beg me to start posting. I won't! I won't... really! The pain.... I might even delete my signature.

You're saying "you don't need no stinkin' badges!".

[wiredgeorge]

Originally Posted by travelin texans

You're saying "you don't need no stinkin' badges!".

I won't answer as I am NEVER going to post again.

[flybouy]

Ha, ha, ha.....

https://www.youtube.com/watch?v=XQHGsUdG68U

[Tooth Ferry]

West Marine and probably other boating suppliers have electric heaters with set on/off temps that are UL approved for use in enclosed boat engine compartments. I have used them in my boats for several years to avoid having to winterize and to use boats as desired. They have different size units.