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Old 08-29-2016, 05:14 PM   #1
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Size Generator Questions

Have the 2017 Flagstaff Superlite with two AC units one in front and one in back. Dealer can't tell me what wattage generator will run them both. Can someone offer some advice and other than Honda what is a good quiet generator that is not huge to buy. We're okay with buying 2 that connect.
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Old 08-29-2016, 05:55 PM   #2
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From one major RV parts vendor for 15K AC
  • Minimum Generator Size:
  • 1 Dometic Air Conditioner3.5k Watts
  • 2 Dometic Air Conditioners5.0k Watts
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Old 08-30-2016, 05:52 AM   #3
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Yamaha is another good brand. Next tier quality is Champion. I have a Champion 2000 watt. No issues.

Not sure if the larger models (3500 watt) can be paired together.
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Old 08-30-2016, 06:54 AM   #4
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Have the 2017 Flagstaff Superlite with two AC units one in front and one in back. Dealer can't tell me what wattage generator will run them both. Can someone offer some advice and other than Honda what is a good quiet generator that is not huge to buy. We're okay with buying 2 that connect.
5,000 watts minimum. Might need to go larger if you plan on running anything else. The A/C running isn't the problem it is the start up draw. FWIW I have a 15.5k btu Dometic unit and it pulls a solid 15 amps running that is almost 2,000 watts right there, it can pull double that when it starts up.

You also need to factor in the converter, fridge, microwave, etc. There are a lot of variables to consider.

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Old 08-30-2016, 07:35 AM   #5
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You'll not find a a reasonably quiet genny that will run both a/c units at the same time.
Both a/c units running at the same time will pull around 30 amps .
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Old 08-30-2016, 08:54 AM   #6
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You'll not find a a reasonably quiet genny that will run both a/c units at the same time.
Both a/c units running at the same time will pull around 30 amps .
Good luck
Yep, two A/C's are going to be taxing any quiet inverter type generator to the point it's running near full load.

Some inverter generators allow a smaller size to be run in parallel with a larger size so you 'may' be able to get enough amps by going with one genny smaller but they are still gong to be loaded pretty heavily.

The Briggs & Strattons allow their 2000w and their 3000w units to be paralleled. I believe a few others do as well.

Two 3000w in parallel would likely run both A/C's.
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Old 08-30-2016, 09:45 AM   #7
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You'll not find a a reasonably quiet genny that will run both a/c units at the same time.
Both a/c units running at the same time will pull around 30 amps .
Good luck


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Honda makes one... but it costs more than my first two RV's did.

I have seen a couple of these on job sites and they are spectacularly quiet compared to what is usually used.

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Old 08-30-2016, 01:24 PM   #8
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If you insist on using generator power for two a/c units, then the best cost effective option is to run two 3k generators simultaneously but first ensuring that they are on separate circuits-some wiring may need to be changed. I recommend Boliy generators as being cost effective and the lightest weight of all inverter generators in its class.

If you camp in a dry climate, I'd sell or use the 2nd a/c as a spare and install a turbokool rv swamp cooler in its place. It used very little energy and will allow you to use both a/c and swamp cooler at same time with a quiet 3,000 watt continuous inverter generator.
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Old 09-06-2016, 04:38 PM   #9
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Size Generator Questions

Champion is now making a 2800 watt that is parallel kit ready


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http://www.supergenproducts.com/
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