I have a 225G, not plus, that has been used as a house generator. Max output is 8000 watts so you have to me careful of things you can run at the same time. I know nothing about converting to NG. You have to set the output to AC and set the dials to max.

 

Gasoline contains an enormous amount of energy - but it isn't as clean as natural gas or as cheap (where she lives). A 7.5K Firman generator available at Costco has a three-way fuel option and states three different power outputs.
Gasoline = 7500 watts
Propane = 6750 watts
Nat Gas = 5500 watts

The 2 benefits of natural gas: The oil stays clean for really long time, and the if the gas supply isn't interrupted, the tank never needs to be refilled.

 

Do you have any problems with the Firman generator? I have read many controversial opinions about it.

 

We had a 12 KW Kohler generator installed with a transfer switch for $6,500 last year. It is enough to keep maybe 80% of our house running. Our electric dryer didn't make the cut, but we already use a drying rack instead much of the time.


Obviously we haven't lost power for an extended period since we got it. The piece of mind it has provided for our situation has made it worth it for me. I had been debating just getting a portable generator to keep on hand, but I'm satisfied with our choice.