I don't know, bud. I'm not exactly a HVAC expert by any means.(Yotta see the lame excuse I have for a ventilation system in my grow room).
I think you'd just end up warming the inside of the little REEFER (Pun intended)and it just settin' ya back a buncha bucks in electricity for not much(if any)help from the heat.
Ejole..Took me about 10 minutes to get that out.:stoned: