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Old 12-01-2016, 07:57 AM   #1
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How to find out what is powered by the Inverter

I am still very new to the RV world. We have a Sunstar 29VE with a 1000w inverter. I can't seem to find a list of things it is connected to. I know it powers the TV and some of the 120 outlets. I also know it does not power the microwave and AC unit. Does it typically power the refrigerator? I know it will probably be different from model to model. How can I find out other than trial and error? The manual states that it should only be used for short periods of time while dry docked, but can be used while the engine is running. So I do know that much anyway
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Old 12-01-2016, 08:24 AM   #2
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LarryJB, the drawings for your coach are not online yet but here are the typical feeds for the 1000 Watt inverter. Mostly entertainment stuff and one at the dinette and bedroom. No heavy current users.
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Old 12-01-2016, 08:38 AM   #3
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Easy way to check, unhook from shore power, turn on inverter and try each outlet with a night light. Might take you 5 minutes or so to check each outlet.
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Old 12-01-2016, 08:53 AM   #4
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Small size of inverter [usually 2000 watts] and depending on how many house batteries you have, limits use of inverter to low draw appliances, eg lights, entertainment, etc. Agree, turn off shore power, turn on inverter, see what still works--but probably a small list of things that do.
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Old 12-01-2016, 10:32 AM   #5
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So, the refrigerator is probably not on the inverter? I know I can check, but was just wondering if anyone knew about the fridge. My thinking is that if the fridge was on the inverter I could avoid having the propane valve open to power it while driving down the road.
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Old 12-01-2016, 10:46 AM   #6
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Propane fridges use 350 to 450 watts on AC. That translates to a 35 to 45 amp draw on your 12 volt system.

Residental fridges use 1/3 the power.

Gas fridges are better off left running on gas, unless on shore power.
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Old 12-01-2016, 02:30 PM   #7
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Propane fridges use 350 to 450 watts on AC. That translates to a 35 to 45 amp draw on your 12 volt system.

Residental fridges use 1/3 the power.

Gas fridges are better off left running on gas, unless on shore power.
Ok, Thanks! Running on propane it is. This also explains why a friend said he would run his residential fridge on his inverter while traveling. So can I assume that it is perfectly acceptable to run the fridge on propane while traveling? What about running the furnace in really cold weather while traveling?

Sorry for all the really basic questions, but even the experts had to learn the basics at one point in their life.
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Old 12-01-2016, 03:25 PM   #8
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Many, many owners, including me, run the fridge on gas while underway.

Haven't needed the heat but others claim they do.
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Old 12-01-2016, 04:24 PM   #9
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How to find out what is powered by the Inverter

I use gas for frig and heat while on the road. No issues. Many have strong opinions on the subject.
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Old 12-01-2016, 05:52 PM   #10
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27 years RVing, have run the fridge on LP going down the road without any issues. Also have run the furnace occasionally when needed, although my current MH has the automotive heater system tied into the coach furnace ducts.
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Old 12-01-2016, 08:26 PM   #11
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Like others, I too run propane appliances while on the road. The only objection to this is there are some long tunnels where you MUST turn off your propane before entering. It's a safety thing.

Just anticipate any tunnels and turn off your propane before the tunnel, turn it back on after passing through. Your food in the refer will be fine.
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Old 12-01-2016, 08:46 PM   #12
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"I know I can check, but was just wondering if anyone knew about the fridge."

The best answer, the most correct answer, is you checking your fridge. Your fridge might...might be different than the specs say it is. RVing is about self sufficiency on the road IMO.
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Old 12-01-2016, 10:07 PM   #13
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Easy way to check, unhook from shore power, turn on inverter and try each outlet with a night light. Might take you 5 minutes or so to check each outlet.
"X 2" Neither life nor RVing needs to be complicated!!!!!
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Old 12-01-2016, 11:05 PM   #14
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I am thinking it is not running on the inverter, but you can check by setting the frig on auto, turning off the gas and unplugging from AC. I am thinking that If it is on the inverter, the frig would continue to work.
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Old 12-02-2016, 05:08 AM   #15
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If your main concern is being able to run the fridge, I submit that there is no reason to have the fridge on if, you've precooled the unit before loading it with food and driving say 8 hrs. or less. When we had our propane fridge I never ran it on propane while traveling and had no issues with it getting to warm inside for the food.
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