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Old 04-12-2010, 09:34 PM   #15
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Joe, [B]
Not knowing what your heater/ac combination is if a EVAN's unit they had control valve problems cutting the heat part of unit. Let us know.
Acme units had a ton of trouble with their electric heater valves also.(while they were still in business). I installed a PEX ball valve in line with the original and turn it off in the summer.
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Old 04-13-2010, 04:15 AM   #16
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They said it turned out to be nothing more than a loose wire. Joe
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Old 04-14-2010, 02:48 PM   #17
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You can look at it this way. 2-1500 btu airconditioners require about 4.9 horsepower to run. Would you rather operate a 350-400 hp engine to suppy this power or a 8-10 hp engine.
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Old 04-14-2010, 03:01 PM   #18
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I wonder how much fuel per hour is used by the 6,000 watt gen? Shouldn't be too much. Joe
Assuming you have 2-1500 btu units you would use about 0.4 GPH.
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Old 04-15-2010, 01:25 PM   #19
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Assuming you have 2-1500 btu units you would use about 0.4 GPH.
Isn't that suppose to be 15,000 BTU not 1500?
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Old 04-15-2010, 02:50 PM   #20
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9 out of 10 ten times our gen is running if we are moving. Start out using the front roof air then will turn on the rear ac when really hot. Rarely use the dash air as it is basically worthless.
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Old 04-15-2010, 05:40 PM   #21
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I've got a 1991 F-53 based coach, but the dash air will generally keep us cool even in the hot summer. But I'll usually run the gennie and the coach air because without that, the coach itself will be 100 degrees when you stop. Also, if I'm climbing the Donner Pass or something, for sure I want to minimize the load on the engine.

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Old 04-15-2010, 09:28 PM   #22
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For easy calculations assume you drive an average of 60 MPH and your average consumption is a wonderful 10MPG. With these assumptions you would consume 6 gallons per hour (GPH). If the genset uses 0.5 GPH then the overall consumption is 6.5 GPH and your wonderful mileage is reduced to.... 9.23MPG. Your actual mileage and genset consumption may vary.
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Old 04-16-2010, 08:32 AM   #23
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Isn't that suppose to be 15,000 BTU not 1500?
You got me!!!
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Old 04-17-2010, 07:55 AM   #24
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Dash air has always worked fine for us.
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Old 04-17-2010, 08:20 AM   #25
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Our dash air keeps us comfortable until we get tied up in slow traffic and than we run the generator and our central air. Last year coming home from the rally in Ohio we came through Chicago in temps over 100. It took us over 2 hours to get through the City due to road construction. Thankfully we had the central air to use.

On the issue of fuel consumption we should realize that when we shut off the dash air we are taking a load off the engine with some fuel savings there. What the net loss is I am not sure but my comfort has a higher value.

Don
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Old 04-17-2010, 07:04 PM   #26
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Anytime it is hot and humid we run the genny for cooling. As said, genny gets its run time that way and coach is cool when we stop.
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Old 04-18-2010, 01:01 AM   #27
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We use whatever it takes to cool the coach and make us and the cats, especially the cats, comfortable.
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