SearchAsk us anythingarrow rightWhat size generator do you need to run a 5 ton AC unit?If you have a 5-ton (30-Amp, 36,000 BTU) AC unit, you'll need a generator of at least 14KW for it to run efficiently.Let's Get It Fixed!Our virtual experts can diagnose your issue (for free!) and resolve simple problems.Chat with a live expertChat nowCall 1 (855) 466-3948Call nowRATESHARECopy linkTwitterFacebookmagnifying glassLink copied to clipboard.SUBMIT AN ANSWERShop Recommended ProductsShop HomeX Recommended ProductsRELATED QUESTIONSWhat size generator do I need to run a 225 amp welder?A 15,000 watt AC generator is required to successfully run your AC/DC 225/125 welder.How many watts do you need to run a 5000 BTU air conditioner?The number of watt is dependent on the number of Amps and the number of volts in the outlet. When plugged into a 110-volt outlet, most 5,000-BTU air conditioners use only 5 Amps. The range for window-unit air conditioners is between 5,000 and 18,000 BTUs.What size standby generator do I need?A margin of safety and future power needs can be achieved with multiply kilowatts x 1.25. The minimum generator capacity is required for your home. If your minimum Generator Capacity is 17 kilowatts, you will want an 18-22 kilowatt generator to power your home during an outage.What size generator do I need for a 5th wheel?Onan generators can be found in a compartment up front on most fifth wheels. If you need a lot of power, you want it to be 50 Amp. If the generator is only 30 Amp, you may need to purchase an additional generator.What size wire is needed for AC unit?There are 4 answers. It depends on the unit that's being installed, but usually it's 30-60 Amp with 10-4 AWG wire. You'll be in the 30-40A range if you look at a 3.5 ton unit.What size generator do I need to run a 4 ton air conditioner?You can return to a cool home with the power of a generator. A 4-ton central air conditioner could be powered by a 14-kilowatt generator. A 5-ton central air conditioner can be run on a 17 kilo watt model. This is dependent on what else is being powered.