Refrigerator (new to camping) - Page 4 - Fiberglass RV


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Old 07-27-2018, 11:04 PM   #61
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To steer a bit away from the whole propane-while-towing issue, I have an observation and a question.

Dometic stated that 12VDC operation of the 3-way fridge in our Casita would produce a lower wattage than operation on 120VAC or LPG, resulting in less effective cooling; the fridge should be initially operated on 120VAC or propane to effectively cool it down before towing it and operating on 12VDC.

My question is what have folks observed when operating on 12VDC while towing in hot weather conditions? Was this satisfactory in terms of keeping things cool?
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Old 07-27-2018, 11:51 PM   #62
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I initially was going to order a 3-way fridge, but after learning how inefficient 12V was, I changed my order to a propane/120V fridge.
That was ten years ago, and I haven't regretted my decision.
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Old 07-30-2018, 07:41 PM   #63
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We run the fridge on 12v while towing with great results even in summer heat. The fridge maintains its temperature well.

The power line in our 7-way umbilical provides adequate power to heat the internal element.

I installed a relay off the fridge's 12v power cord which requires the trailer running lights to be on for 12v power to get to the fridge. This way I can control the fridge from the tow vehicle and the fridge doesn't pull power from the tow while parked, unless I leave the lights on.
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Old 07-30-2018, 08:12 PM   #64
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Quote:
Originally Posted by Markz View Post
We run the fridge on 12v while towing with great results even in summer heat. The fridge maintains its temperature well.

The power line in our 7-way umbilical provides adequate power to heat the internal element.

I installed a relay off the fridge's 12v power cord which requires the trailer running lights to be on for 12v power to get to the fridge. This way I can control the fridge from the tow vehicle and the fridge doesn't pull power from the tow while parked, unless I leave the lights on.
so the fridge only runs with the parking lights on the tow vehicle? huh.
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