What is the best generator for long term use. I need something dependable but obviously not the most expensive something in the middle. I think diesel obviously is better than gas. I've also seen some propane generators which would be better on the engine and smell but I've never even used one of those before. I'm looking for around 7000 watts or so to power my Mytee 1003dx which if my calculations are correct runs around 4400 watts. will 7000 watt plus some surge be enough for this unit? I had a 5000 running watt coleman piece of garbage generator that failed miserably at this task ( i knew to much wattage so I ran without heat but it still broke down) . Any input is greatly appreciated and thanks in advance.