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 > Live with no dash ac?

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onrecess

Boca Raton, FL

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Posted: 09/11/20 08:51am Link  |  Quote  |  Print  |  Notify Moderator

I have a gasser. It is not very cool driving with both AC units on, unless the dash air is on. I am looking at a Diesel Pusher (Dutch Star) and the dash air doesn't cool. I have heard this is common. I live in S. FL, and travel to Texas quite often. It is HOT. Will the driver's area be as uncomfortable as the gasser with no dash AC, or is the AC big enough to keep my cool?


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MountainAir05

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Posted: 09/11/20 09:17am Link  |  Quote  |  Print  |  Notify Moderator

Yes. If you don't have a dash AC then one of these will cool you. If you only have two roof top AC then you need 4 to do the good. Three will be close but not what you want.

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carringb

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Posted: 09/11/20 09:24am Link  |  Quote  |  Print  |  Notify Moderator

Why would you drive without the dash A/C on?

That's like saying your showers are cold when you have the water heater turned off...

And FWIW - the capacity of the factory dash A/C is many times greater than your house A/Cs.


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sch911

Rochester Hills, MI

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Posted: 09/11/20 09:49am Link  |  Quote  |  Print  |  Notify Moderator

carringb wrote:

Why would you drive without the dash A/C on?


When your dash A/C isn't working as is the case here...


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gbopp

The Keystone State

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Posted: 09/11/20 10:31am Link  |  Quote  |  Print  |  Notify Moderator

Get the dash air working and hang a temporary curtain behind the driver/passenger area while driving. It will keep you cool.

midnightsadie

ohio

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Posted: 09/11/20 10:41am Link  |  Quote  |  Print  |  Notify Moderator

that temporary curtain is a must and tucked in. will run us out of the driving area.

hotjag1

Lake Chelan, Wa/Lake Havasu, Az.

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Posted: 09/11/20 12:24pm Link  |  Quote  |  Print  |  Notify Moderator

gbopp wrote:

Get the dash air working and hang a temporary curtain behind the driver/passenger area while driving. It will keep you cool.


Yep, this method keeps the cab plenty cool.


hotjag1
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dougrainer

Carrolton, Texas

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Posted: 09/11/20 02:51pm Link  |  Quote  |  Print  |  Notify Moderator

carringb wrote:

Why would you drive without the dash A/C on?

That's like saying your showers are cold when you have the water heater turned off...

And FWIW - the capacity of the factory dash A/C is many times greater than your house A/Cs.


Are you talking BTU's???? If so, not even close. The BTU of a MOTORHOME Dash AC unit is about 11,500 to 13,500 BTU. The DSDP he is looking at has a total of 30,000 BTU of Roof air if 2 units and 45,000 btu if it has 3 roof AC units. Class A Motorhome Dash AC systems are designed JUST for the Dash compartment. Doug

wa8yxm

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Posted: 09/11/20 03:15pm Link  |  Quote  |  Print  |  Notify Moderator

The Dash air is intended to cool a Truck cab. Somewhere between a F-350 and a Ford 8000 or there about (Semi tractor) it is not designed to cool the entire house. so if it's hotter than .... well Not. You need every big of coolign you got.


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jorbill2or

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Posted: 09/11/20 05:29pm Link  |  Quote  |  Print  |  Notify Moderator

To answer What you asked ( I think ) when I bought our marquis the dash air didn’t work and I was quoted Over a thousand to replace the compressor and the dryers etc serviced. Knowledgeable people said it wouldn’t keep up and I would need to run a roof air . I let it go till later. It’s now 6 years “later” and I just run the generator and the roof airs ... I’m plenty cool while driving and I’ve now spent 2 summers traveling in Semi hot areas
. Dash air is not more powerful than the roof airs or even one large roof air . it does blow cold in your face I suppose I see that as an advantage. I can see closing off the front with some curtain contraption would keep the cab cooler on dash air alone. My question is when you get to your camp and open that curtain your met with a wall of heat and it will take time to get it back down. Why do it ? The bedroom will get crazy hot with the diesel just under the floor.
I guess folks do all that to save a few bucks in the generator use. i prefer to be comfortable all the time In The whole unit . the roof airs do that. Just my take...


Bill

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