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Old 12-02-2002, 07:33 AM   #1
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1972 31' Sovereign
High Springs , Florida
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Coleman AC Heater Element

I had not run my Honda generator for a month, so I decided to excercise it last night. I hooked it up to the AS, and after it had warmed up, decided to turn the AC on to "heat". Well, that got generator "barking"! I think it is a 1500 watt element. Did not seem to put out much heat, but it was 20 inside the trailer. I suppose if it gives a 20 degree rise, it would only be putting out 40 degree air. Anyone else use the heater in the AC? BTW, with the AC running on heat and the Univolt on, the AC stayed around 121 volts, with the AC off, and just the Univolt it was 127.

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Old 12-02-2002, 08:14 AM   #2
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Air Conditioner Heat Coils

I've used mine at times. They are marginal and really only designed to take the chill out of the air. The only issue I have with mine is that it has no thermostatic control. So when you get too hot you turn it off and when you get cold you turn it back on.

Last fall I used it during our trip to the Smokies. The outside temps were in the high 30's and the heat coil worked fine until it got too warm. Bottom line I got tired of turning it off and on and finally set the furnace thermostat.


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'04 Classic 30' S.O.,'03 GMC Savana 2500,'14 Honda CTX 700
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Old 12-02-2002, 09:09 AM   #3
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If the outside temperature is near freezing, you must run the furnace, so that heated air is circulated around the holding tanks, water tank and the water lines. The heating portion of your AC will not help to keep the water from freezing.
However, if the outside temperature is above freezing, you can use the heat portion of your AC. Unfortunately, that's not very efficient. The standard heating element is 1500 watts. By formula, one watt produces 3.4 BTU per hour. That amount to 5100 BTU per hour. Excellent to remove a "chill" but not worth much if it's really cold outside. Keep in mind that the larger Airstream furnaces put out 30,000 BTU, nearly six times what the AC heating element will do.

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Old 12-02-2002, 01:53 PM   #4
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same here ...the heat ribbon will hardley knock out the chill..thought it was broke ....just not much punkin..
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Old 12-02-2002, 02:04 PM   #5
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Just for limited use

It's good here in Texas for about a month in the spring and a month in the fall. I turn it on first time going under the AC in the morning on the way to the bathroom, then hop back under the comforter. It takes the chill off quite nicely by the time I'm ready to get up.

Rest of the time, I use a Pelonis ceramic heater with thermostat. I set the furnace thermostat a few degrees colder than the Pelonis so that the furnace just comes on for backup.
John W. Irwin
2014.5 Touring Coach, "Sabre-Dog IV"
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