T&T: Muffin fan

[clyde fernortner]

as to a fan on the norcold, i have a vent above ours, and put the fan just 
below abt a 4" hole...tried diff ways to keep the noise down, and ended up 
suspending it from 4 pieces of soft rubber...very quiet now...i tried to 
find out where to connect to a 12v source too...i got a schematic from 
norcold, but was`nt marked, so i just hooked it up to the 12v power source, 
that`s always on, and it runs all the time...i take it out and clean it abt 
3 times a yr...i have a furnace vent on the bk, bottom of the frig housing 
that lets in cold air...i also vacume the dust in there coupla time a yr...i 
run it on propane most of the time...i think the fan really helps a lot...i 
got the idea from a trailer mag, many yrs ago...c