Asked by: Kseniia Larrasoain
asked in category: General Last Updated: 8th February, 2020

Will a 3000 watt generator run a 15000 BTU air conditioner?

Most recreational vehicles have an air conditioner that will need 13500BTU or 15000BTU to run. An RV that has 13500 BTU air conditioner will need at least 3000 watts to start. Once it's up and running, it will need 50% less power like 1500 watt running. A 15000 BTU RV AC will need 3500 to start and 1800 running watts.

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Besides, how many watts does it take to run a 15000 BTU AC?

Wattage Chart

Motorhome 5th Wheel and Camp Trailer Roof Top Air Conditioners Watts Required for start up Average wattage once running
7000 btu RV air conditioner 1700 600
10,000 btu RV air conditioner 2000 700
13,500 btu RV air conditioner 2750 1250
15,000 btu RV air conditioner 3500 1500

One may also ask, will a 2000 watt generator run a 13500 BTU air conditioner? A 2000 watt generator won't be able to power your hot water heater. A 2000 watt handle the load of a 15000 BTU RV air conditioner with a higher starting wattage capacity could let you run a 10,000 BTU window air conditioner during a summer blackout. Once it is running, you have roughly 1800 watts left to work with.

Keeping this in consideration, what size generator do I need to run a 15000 BTU air conditioner?

Buying a Portable RV Generator

Size of Air Conditioner Approximate Starting Watts Approximate Running Watts
13,500 btu 2800-3000W 1500-2000W
15,000 btu 3300-3500W 1300-1800W

What size generator do I need to run my air conditioner?

For a generator that you want it to run more than just a small AC unit, a 3200-watt generator could handle a larger AC unit and few more appliances. If you just want to cut throughout all the grey area and just play it safe. The 4000-watt generator covers even the largest RVs and lots of appliances.

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