Well they tend to be multi fuel, take to a job site run on gasoline. Put oputside your home, connect natural gas or propane hose to quick disconnect that at other times might be used for gas grill.
Natural gas burns clean, doesnt gum up when unused either. Its really simple to conver even a small gasoline engine to natural gas. I have a friend who has done that but he runs his car and jeep on CNG at 1500 PSI.
Ok , ok, I can't fault you for trying to save $$$s. I trust that you are using this primarily in cold weather? How cold? That could certainly affect generator performance and reliability. You may not even be able to start a generator (especially an el-cheapo) in really cold weather.
I think that your best bet is to buy a deep-cycle marine battery (about $80) and an inverter. Sounds like you already have a charger, which you can use at home to charge the marine battery in between uses. Just remember, most inverters (the cheaper ones) do not provide sine-wave AC and may damage sensitive electronics, including battery chargers for power tools, so be careful what you use it for. I fried a laser printer once, in an attempt to have a mobile office. Sine-wave inverters are much more expensive and are usually found in RVs for Tvs, etc.
I hope your car doesn't decide to become unreliable halfway to your hangar on a cold day!
Good Luck!
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