Using a DC to AC Power Inverter with a Air Conditioner

Hi my name is Bill, I need to run a air conditioning unit with a dc to ac power inverter to keep my vacation home cool. Do you know which size power inverter or model I need to buy? Thanks!

The first thing you need to consider when purchasing a dc to ac power inverter to run an AC (Air Conditioner) unit is the size of the air conditioner or amount of BTU’s or AMP’s required to run. All electronics have a power label that will list the running wattage and amp requirement or with AC units it might show BTU’s. Small window AC (Air Conditioner) units will usually be in the range of 3000 to 5000 BTU’s with larger system going as high as 15000 BTU’s. In most case a standard 5000 BTU AC (Air Conditioner) unit will operate nicely with a 3000 watt 12 or 24 volt dc to ac Royal Power Inverter. We always recommend with any electronic to check the manual to make sure the peak wattage will not exceed the 3000 watts. For a larger AC unit of 8000 BTU’s to as high as 15000 BTU’s you will require a larger power inverter, the 6000 watt dc to ac power inverter should do the trick.

Another to keep in mind when selecting a power inverter is to purchase at least 15% to 20% below the continuous wattage of the inverter, this will really affect the life span of your power inverter. For example when using a dc to ac power inverter for something like an Air Conditioner unit we expect you will run it on a 24 hour 7 day a week basis when the weather is warm. Therefore if the continuous wattage draw is 1875 watts, we recommend buying the 3000 watt unit instead of the 2000 watt. The stress beginning put on the smaller unit will result in the product failing years before the 3000 watt dc to ac power inverter. By purchasing the larger unit and spending a little more it may pay for itself if it lasts 5 or 10 times longer. Please get back to me, let me know the size of your AC unit, I will be happy to suggested the right unit for you and to make sure your battery bank is set up with the right amount of power and correct voltages, so you can keep cool for the amount of time you need.