bkbosscher
Long Beach CA
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Joined: 10/20/2010
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But if the dash A/C is sufficient, is it still wise to run the generator with the dash A/C off? In other words, is it cheaper to cool the coach off the generator or the engine?
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bugs53
Jacksonville, Fl
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Joined: 04/24/2008
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We run with our dash air exclusively. It cools our 32 ft coach very well while driving. We always turn on the Genset and both roof airs about 20 minuetes out from stopping for the night. The coach continues to cool while checking in, getting to the campsite and setting up.
A cool coach and two way radios have kept us happily married for 40 years.
Bugs 
bugs53
08 Tiffen Allegro, Wrangler Shahara.2dr std, Us Gear Breaking
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ljr869
Fallbrook, CA
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95? Dash a/c would be fine if I don't mind sweating. Otherwise it's gen, roof air, and a 12 volt fan on the floor to my right. If it's really hot I'll turn on the defrost fans and the dash vent on recirculate.
Jim
2009 Fleetwood Bounder 35H
Ford V-10 w/ Banks
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CA Traveler
The Western States
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bkbosscher wrote:But if the dash A/C is sufficient, is it still wise to run the generator with the dash A/C off? In other words, is it cheaper to cool the coach off the generator or the engine? Most dash airs will not cool the entire coach so it's difficult to compare.
The dash air is much more directed towards us in the front and is the first choice as long as we're comfortable. But the cat gets the warmer air and 12V blanket midships. 
2009 Holiday Rambler 42 Scepter with ISL 400 Cummins
2004 Honda CR-V
Bob
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The Beave
Georgetown TX USA
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We use the dash air until about 85-90 degrees plus the two dash mounted fans. We also close the hallway door. If the temps go up we run the propane generator and roof airs.
The Beave
30' 1997 Beaver Monterey
(The shortest DP we could find)
2005 Honda CR-V
Remco surge brake
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gsander1
Birmingham, AL
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Joined: 03/04/2003
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The dash A/C in my coach is 19,000 BTU. Coach is 33 feet. The dash air alone keeps us cool and comfortable to 95 degrees if humid and 100 is dry. Then we turn on generator and rear A/C in addition to dash.
George in Birmingham, AL
03 Country Coach Magna
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Ozarkwoods
Highways, and Byways
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Joined: 01/09/2006
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Both dash air and generator and roof air working in the summer while driving.
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RayChez
Barstow, Ca. USA
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Joined: 09/13/2003
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The dash air is not enough if you are in 100 degree plus, you have to run the generator. Too much volume for the dash air to cool. It will throw cool air at your face, but it is best just to start the generator and cool the whole coach. Generators are very economical anyways, about a gallon per hour.
2002 Gulf Stream Scenic Cruiser
330 HP Caterpillar
3000 Allison Transmission
Neway Freightliner chassis
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Aventa II
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Dale.Traveling
Newport News, VA
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Another vote for the generator and roof AC.
Dash AC designed for a truck cab not the volume of a Class A. Generator spec rate fuel usage at 1/2 gallon an hour which if converted to MPG @60 MPH is 120 MPG. At worst it's a wash in fuel usage but I think I get better overall fuel usage running the generator. As an added bonus the coach is nice and cool when we arrive at the CG.
2006 Hurricane 31D aka 'Moby' the Whale
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Ozarkwoods
Highways, and Byways
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Joined: 01/09/2006
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Both dash air and generator and roof air working in the summer while driving.
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