Wellnow....
I solved it at Burning Man this year. We used a regular full size residential kitchen refrigerator. I simply let the EU3000 run for ten days straight. I only stopped it to top off the fuel morning and evening. And it consumed only something like 27 gallons in ten days. Basically it idled the whole time. We could hear it power up a tiny bit when the refrigerator kicked in, and a bit more when we used the microwave oven. And then there were the air compressor, the golf cart battery charger which ran several hours a day, and some other Stuff. I put a bigger load on it occasionally very briefly, like the metal chop saw, but heck.... And various camp members plugged other appliances into it from time to time -- and I didn't even need to know about it. For ten bucks a day we had the same kind of convenient 110 power as we enjoy at home. Totally worth it for an event like Burning Man. Problem solved with no additional equipment! Now it seems silly that I worried about it in the first place.