The Yamaha EF3000ise (without the power boost) will operate all 110V items (with the exception of the water heater) at the same time, in our 17' Casita
. We usually operate it in the power saver mode. The generator
slows momentarily during the A/C start cycle. When I was running a test, the interior lights
, Fantastic Fan, bathroom fan, stove vent fan, water pump, Coleman Mach A/C, and microwave
were all operating. We purchased that generator
to also provide an emergency source of power at home.
Our Yamaha was also converted to use propane
fuel since it sits behind the existing propane
tanks, eliminating the need to carry gasoline and its maintenance issues.
No problems in 2 years of use.
& Ann K.