re: Generator Question

With a 3 ton unit and a soft start, with a 7000 / 8500 generator on NG, you should have no problems running it with the other things you mentioned.

A few tips:

Don't ever run this thing under your roof, including car ports, garages, etc.. and don't run it with the exhaust pointing toward your house. Ensure it's a safe distance away with exhaust pointing away from your house.

Don't skimp on oil and other maintenance items. Only use top quality synthetic / synthetic blend small engine oil. Small engine oil has higher levels of zinc and can withstand the heat of an air cooled engine better than car engine oil. Honda, Kawasaki, and John Deere make some great small engine oils that can be bought at most box stores.

At 8000 watts it probably has a splash oil system with no oil filter. Would be worth looking into getting a magnetic dipstick.

Be sure to follow the break-in process per the manual.

THD on that generator is a little high, at 12%-20%, so if you have any sensitive electronics they may not operate well being powered by it. You may want to consider getting a UPS if you do.

Your spark plugs should be gapped to around 0.20 for natural gas, instead of the normal ~0.30 for gasoline engines. This will advance the timing a bit and allow for a better compression and fuel burn.

If you intend to run this thing in the weather, get a running cover for it.

Natural gas burns extremely clean in these engines. I do a maintenance run a couple times a year, instead of every few months, mainly to ensure everything's working right and that I "know the drill". There's no gasoline to go bad, carb to gunk up, etc..


ETA: Congrats to you and your wife!