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Old 07-17-2012, 07:51 PM   #1
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Running on electric ?

Is it ok to run the water heater and the fridge on electric when running the AC?

Thanks!
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Old 07-17-2012, 07:59 PM   #2
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Depends on when you do it! If on a 30 amp plugin you may be short on power for the water heater and the fridge. Then again, maybe not. Kind of depends on when the compressor on the air con starts. If everything kicks in at once then it'll probably kick the breaker off.
A 30 amp rig has 3,600 watts to work with, how much does each thing you want to run consume?
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Old 07-17-2012, 08:15 PM   #3
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Depends on when you do it! If on a 30 amp plugin you may be short on power for the water heater and the fridge. Then again, maybe not. Kind of depends on when the compressor on the air con starts. If everything kicks in at once then it'll probably kick the breaker off.
A 30 amp rig has 3,600 watts to work with, how much does each thing you want to run consume?
I don't know how many watts they use, I will look at the tags and see.
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Old 07-17-2012, 08:42 PM   #4
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You can try it. The worst that can happen is you'll trip your 30 amp breaker, either on the campground power pedestal or in your RV's power distribution panel. You'll find your limits of what works in combination with what pretty quickly. This is, of course, assuming that your RV has 30 amp service.

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Old 07-17-2012, 09:02 PM   #5
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This is, of course, assuming that your RV has 30 amp service.

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And assuming you are plugged into a 30 amp service....

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Old 07-18-2012, 11:43 PM   #6
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I don't have any problem running the water heater and fridge along with the AC on 30 amps. The only problem is trying to run the microwave at the same time. And that is only a problem if the water heater is actually pulling current at the time. We usually just flip the AC to fan only while using the microwave just to be sure.
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Old 07-19-2012, 08:06 AM   #7
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Let me put it this way:

20 amps: NO
30 amps: In theory yes but some parks are a bit..er.. Anemic. on power and it may cause problems.. By the way read "Some" as "Many".
50 amps. Do it all the time no problems both air conditioners in fact.
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Old 07-19-2012, 02:45 PM   #8
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Some say to get a plug that goes from 50 amp to a 30 amp, and plug into the sites 50 amp outlet. Does this give you a better chance of getting the full 30 amps than plugging into the 30 amp outlet?
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Old 07-19-2012, 02:59 PM   #9
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Some say to get a plug that goes from 50 amp to a 30 amp, and plug into the sites 50 amp outlet. Does this give you a better chance of getting the full 30 amps than plugging into the 30 amp outlet?
Your RV breaker will still "break" at 30 if the breaker is OK. Usually it won't make any difference as to what you can run unless the pedestal 30 amp breaker/circuit isn't up to snuff.
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Old 07-21-2012, 02:09 PM   #10
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As far as cooling, is the fridge more efficient when running on electric or LP ?
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Old 07-21-2012, 05:26 PM   #11
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How many watts.. A typical A/C is 1100,

Water heater 1200

Fridge 350-400

Is the firdge more efficient on gas or eletric? Depends on who's paying for it, If the electric is inclded in the site rental then electric.

If you mean which "Fuel" cools better.. Depends on the fridge no way to predict

Microwave, A/C, Water heater and in some cases the converter (Depends on the make/model and state of charge of battery) are all "BIG" items,

20 amps one big item
30 two big items
50 all you can eat.
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