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Open Roads Forum  >  Class A Motorhomes

 > Is your Dash A/C enough in the summer while driving?

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bkbosscher

Long Beach CA

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Posted: 01/30/12 03:04pm Link  |  Print  |  Notify Moderator

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?

bugs53

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Posted: 01/30/12 03:35pm Link  |  Print  |  Notify Moderator

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.

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ljr869

Fallbrook, CA

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Posted: 01/30/12 03:52pm Link  |  Print  |  Notify Moderator

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
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Posted: 01/30/12 04:03pm Link  |  Print  |  Notify Moderator

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.


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Bob


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Posted: 01/30/12 04:06pm Link  |  Print  |  Notify Moderator

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.


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gsander1

Birmingham, AL

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Posted: 01/30/12 04:14pm Link  |  Print  |  Notify Moderator

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
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Ozarkwoods

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Posted: 01/30/12 04:18pm Link  |  Print  |  Notify Moderator

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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Posted: 01/30/12 04:18pm Link  |  Print  |  Notify Moderator

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.


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Dale.Traveling

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Posted: 01/30/12 04:25pm Link  |  Print  |  Notify Moderator

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.


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Ozarkwoods

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Posted: 01/30/12 04:26pm Link  |  Print  |  Notify Moderator

Both dash air and generator and roof air working in the summer while driving.

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