Originally Posted by kok328
It is my understanding that generators without a pure sine wave are extremely hard on motors and you run the risk of burning up the motor. I imagine printed circuit boards (PCB's) are voltage sensitive too.
I have an older Coleman PowerMate 4K that serves me well with no trouble, not a pure sine wave but still clean AC. Ran it straight for 6 days keeping furnace, sump pump, deep freeze, refrigerator and well pump on line, just did not have all on at the same time.