On our vintage MH, I ran the house furnace plus the dash heat this am and almost cooked myself out. I had a T-shirt and a pair of jeans on and it was rainy and in the lower 40's. I also have a heater in the rear of the coach that has anti-freeze from the MH engine that has a fan that blows across the coil. Haven't tried that one yet. Of course I am sure it will be different come Dec when we head S to Tx. but I think we will be okay just add a sweater or a extra Blankie...
I also ran the gennie.
1982 Pace Arrow 30ft.
KarKaddy SS, Toad:99 Concours
Lilly and Rubie Our 4 legged Kids & Tim & Joe