Even though we live in Southeast Georgia we built an insulated barn to house the Liberty. Even with overnight temps in the teens I have been able to maintain 40+ temps with a small propane heater a couple hours per day. Durning the balmy summer temps ( 100 degrees with 80% humidity ) the insulation prevents heat from damaging to the coach.
Gladly, this weather is rare for an extended period here in Savannah.

Ken & Ellen