That's interesting, ill have to look into that. I assume you just ordered through the dealership you were working with right? Not like you went direct through heartland? Also as far as the heating yea I know the ammount of heat that's gets pushed into the garage is small but that's where our kids would be staying so my wife is super gung-ho on the "heat in the garage" I have talked with a few people that installed new vents that you can open and close through out the rig, so you can close off most except the garage and get more heat forced into the garage... When I was a kid we had tents and sleeping bags and a fire...So if it was up to me... but happy wife = happy life ? lol
Don't expect one tiny heat register to heat a 10', 12' or 14" garage.