I did a little unscientific testing today with my Honda inverter generators. I compared the noise level with no load at high idle and ECO idle. I also loaded each unit with 750 watts using a space heater. The results were not surprising to me. The 1000 watt generator and the 2200 watt unit made about the same amount of noise under all three conditions. The small unit operated at a higher rpm and produced a higher tone. I would probably prefer the lower tone of the larger unit on a boat, however if I was only use the unit for small loads the weight of the bigger unit makes it a lot less attractive.
So what can the 1000 watt Honda power. I've used it on a small boat to run the 20 amp charger, a 900 watt hot plate and a squirrel cage fan all at the same time. It is only rated to 900 watts continuous and 1000 surge. It switched my heater to 1500 watts from 750 for about 1 second several time today just to test it, it never did overload. It's a tough little generator. Obviously it won't run the standard marine AC unit, but it should handle a 70 or 80 amp charger.
The 2200 should run everything on a typical 30 foot boat as long your not running the water heater and the AC at the same time.
I'm not suggesting that anyone use a portable generator on a boat. Be safe and do your homework.
So what can the 1000 watt Honda power. I've used it on a small boat to run the 20 amp charger, a 900 watt hot plate and a squirrel cage fan all at the same time. It is only rated to 900 watts continuous and 1000 surge. It switched my heater to 1500 watts from 750 for about 1 second several time today just to test it, it never did overload. It's a tough little generator. Obviously it won't run the standard marine AC unit, but it should handle a 70 or 80 amp charger.
The 2200 should run everything on a typical 30 foot boat as long your not running the water heater and the AC at the same time.
I'm not suggesting that anyone use a portable generator on a boat. Be safe and do your homework.