The dash a/c in our MH works great however, it's nowhere near enough to cool down a 39ft MH. It's basically just for driver/passenger comfort while driving. On hot days we always fire up the Onan and run the rooftop a/c units as well as the dash if needed. Usually we don't need the dash once the rooftops are on.
Fuel consumption is really not that bad. But hey... when your only getting 8mpg to start with, whats another half gallon per hr lol.
Our dash HVAC doesn't really do much beyond the front seat, and it doesn't even do that very well. If it is cold outside, we run the furnace(s). If it is hot outside, we run the roof air(s).
2005 Sportscoach Encore 380DS
330HP CAT Turbo Diesel
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