Forum Discussion
Parrotguy
Aug 15, 2006Explorer
Dash vs. roof air
Someone asked awhile back, and I can't find the thread, which was more efficient, all things considered, when traveling in hot weather--using the dash or the roof air(with generator).
Motor Home magazine studied the issue and concluded that you should run the dash air. It seems counter-intuitive because of the additional load on the engine, but that's what they found.
I run the dash air, and if I start to climb a very steep hill I flip it off while climbing to take the drag off the engine. It will still blow cool air for a while, then I put it back on at the top of the hill.
Someone asked awhile back, and I can't find the thread, which was more efficient, all things considered, when traveling in hot weather--using the dash or the roof air(with generator).
Motor Home magazine studied the issue and concluded that you should run the dash air. It seems counter-intuitive because of the additional load on the engine, but that's what they found.
I run the dash air, and if I start to climb a very steep hill I flip it off while climbing to take the drag off the engine. It will still blow cool air for a while, then I put it back on at the top of the hill.
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