Noob generator question - how much?
What size generator is enough to run AC and other normal stuff like a small flat panel led tv, phone chargers etc? I'm not worried about microwave, I'll just turn off ac if I'm going to use that ( I ...
Forum Discussion
Just to clarify, most of the generators mentioned are inverter generators. The cheap lawnmower generators are generally disliked as they are annoyingly loud. Also the quality of the power can be questionable if you are trying to run electonics off them. The name brand inverter generators provide much cleaner power and are drastically quieter.
Starting the AC is about having enough watts/amps to start the compressor. While the AC may be rated at say 12 amps while running, you probably need more like 25-30amps to actually get it started. This is where the answer gets fuzzy.
- At high altitudes, the generator motor is putting out less power due to thin air.
- Some AC units have a hard start capacitor which stores up a small burst of energy to help get the compressor going.
- Some have set up the fan to come on seperately so the generator isn't trying to start both the compressor and fan at the same time (compressor has a much higher draw)
- Starting amperage is not typically defined and seems to vary from compressor to compressor for the exact same model so what works for one may not work for another. It also varys between a warm and cold motor. Usually if it will start the compressor the first time, the AC compressor will cycle back on just fine.
- The wattage you see on the generator is typically peak wattage. Divide by 120V to get peak amperage. Some generators will exceed this momentarily others won't. It's generally not clearly stated by the manufacturer.
A 2500watt inverter generator is a nice compromise and probably will run your AC. We have a 2400watt Yamaha that does fine. Once started, we can run TV, fans and other minor loads with the AC running.
Ours it probably at the upper end of what we would consider portabile for 1 person (70lbs). This is where the paired 2000watt units come into play. They are definetly portable for 1 person and paired up, have plenty of power. The trade off is significant additional cost to purchase.
Starting the AC is about having enough watts/amps to start the compressor. While the AC may be rated at say 12 amps while running, you probably need more like 25-30amps to actually get it started. This is where the answer gets fuzzy.
- At high altitudes, the generator motor is putting out less power due to thin air.
- Some AC units have a hard start capacitor which stores up a small burst of energy to help get the compressor going.
- Some have set up the fan to come on seperately so the generator isn't trying to start both the compressor and fan at the same time (compressor has a much higher draw)
- Starting amperage is not typically defined and seems to vary from compressor to compressor for the exact same model so what works for one may not work for another. It also varys between a warm and cold motor. Usually if it will start the compressor the first time, the AC compressor will cycle back on just fine.
- The wattage you see on the generator is typically peak wattage. Divide by 120V to get peak amperage. Some generators will exceed this momentarily others won't. It's generally not clearly stated by the manufacturer.
A 2500watt inverter generator is a nice compromise and probably will run your AC. We have a 2400watt Yamaha that does fine. Once started, we can run TV, fans and other minor loads with the AC running.
Ours it probably at the upper end of what we would consider portabile for 1 person (70lbs). This is where the paired 2000watt units come into play. They are definetly portable for 1 person and paired up, have plenty of power. The trade off is significant additional cost to purchase.
