4 Best Generator For 13500 Btu Air Conditioner [MY EXPERIENCE]

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The best generator for 13500 BTU air conditioner should have at least a 3,200 starting watt and 2,900 running watt can be put out by this.

If you’re in a hurry, and simply want to know what the best 13,500 BTU air conditioner is – We recommend the Champion 3400-Watt Dual Fuel RV Ready Portable Inverter Generator with Electric Start (BUY ON AMAZON).

It is an excellent RV ready dual fuel generator attracting stellar reviews from buyers in the US. It is a very quiet portable unit that can run on either gas or propane. It has enough wattage to run a large RV air conditioner and other appliances in your travel trailer.

You won’t be disappointed! We assure you that!

You would need a starting wattage of 3000 watt for a 13,500 BTU AC unit like the Dometic Brisk Air 2. The etrailer.com 3,200 watt generator is the best option. Up to 3,200 starting watt and 2,900 running watt can be put out by this.

ALSO SEE: Best Generator To Run Small Air Conditioner

Table of Contents

Best Generator For 13500 Btu Air Conditioner

  • Westinghouse iGen4500

Boasting an incredibly price (half of its competitors), this generator is still able to put out 3,700 watts of power. Even better is when put at 25% load, it can run for an impressive 18 hours non-stop.



It is super quiet when running

Can do an impressive 18 hours of run-time

It boasts of a fuel-efficient mode

Can run your 13,500 BTU RV air conditioner


  • Made from cheaper materials compared to more expensive competitors
  • It needs constant maintenance
  • Customer support can be a pain in the back at times.

Champion 3400-Watt Dual Fuel RV Ready Portable Inverter Generator with Electric Start

This generator is really quiet and costs half the cost of the Honda but features enough power to run my 30-foot travel trailer including the AC (13,500 BTU).


I contacted Champion’s tech for guidance and they were really helpful. I have added a short video clip with pictures (that might help you too).

Best Generator For 13500 Btu Air Conditioner

Best 13500 Btu Air Conditioner Generator

How did I connect mine?

I put a 12-foot hose between the regulator and flow valve.

I placed a quick connect on the trailer and on the original regulator too. That allowed me to run the generator on gasoline, propane bottle and the trailer’s propane system.

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These amazing specs made this generator the perfect camping generator. There’s no need to carry additional fuel!

My trailer’s propane system features dual 20lb propane bottles. That is sufficient to power my 3-day weekend trip in economy mode running only during the campground’s generator hours.

That’s not all. You can use this generator as a back-up generator in your home too. I installed a 30 AMP RV plug next to the sub panel in my garage.

If an extended power outage, I will open the main breaker then be able to safely plug it into the house to back feed power to the furnace some lights and the refrigerator.

This is a great addition to my house & camping equipment.

  • Honda EU2200i

If you’re looking for the best small portable generator then I highly suggest buying the Honda •   Honda EU2200i.


Even with 2 running I can seamlessly talk on my cell phone 10 feet away – You see? The one I have is now 4 years old and because Honda makes them so simple to maintain it still appears to be brand new.

When paired, my two Honda’s can power at the same time the following:



65-inch SAMSUNG Q80 T.V.



…and still only revs up briefly when I use the MICROWAVE.

In summary, this unit is highly versatile as it suits different applications and appliances, good fuel efficiency – thanks to the use of an Eco-throttle system, supplies a clean and stable power.

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It is one of the quietest, and only runs around 48-57 dbA, which makes it 100% quiet.

  • DuroMax XP13000HX Dual Fuel Portable Generator

I bought this model so I can charge my Tesla in case there is power outage.


It has a really strong 500cc engine and rock steady voltage from the generator.

I bought a 100-gallon (420 lbs) propane tank for backup, it should run the generator for about a week.

The part I don’t like about this generator is that the 77db noise level and having to change the oil every 20 hours.

Since I’m burning propane, I figure that I stretch my oil change interval to 100 hours with a synthetic oil.

I’m presently running straight weight mineral 30 to break the engine in.

A well-built, US supported gen set. 

What size generator do I need for a 13500 BTU air conditioner?

You will need a 3000 watts generator to run your 13500 btu air condition.

Will a Honda 2200 Watt Generator run a 13500 BTU Air Conditioner?

Of course, it can. You can use it with no issues at all.

Will a 2200 Watt Generator run a 13,500 BTU Air Conditioner?

Yes, it can but we reocmmend getting an higher watt to enjoy the best efficiency.

Will a 3500 Watt Generator run a 13500 BTU Air Conditioner?

Yes, it will.

Author: Howard S. Baldwin

My name is Howard S. Baldwin. I am a work-at-home dad to three lovely girls, Jane + Hannah + Beauty. I have been blogging for the last 3 years. I worked for other Home and Lifetsyle blogs, did hundreds of product reviews and buyers’ guides. Prior to that, I was a staff accountant at a big accounting firm. Needless to say, researching and numbers are my passion. My goal is to be an informative source for any topic that relates to DIY life and homemaking.

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