Generac IQ2000 (Long winded report)
First off I want to say Generac as a company was pretty responsive to deal with. They answered my calls and emails timely and professionally. What I did not like was all of the excuses I got from them...
Forum Discussion
That engineer (gave url for his site earlier) who looked at Westinghouse and Honda's (after eliminating many others by testing) went at some of the reasons why some will work (see below) and some won't with airco units. That seems to be the ultimate test that impacts RVers. It's in engineer speak so... Oh, I live at 4500 feet in MT, and it has never failed to start my 11 year old air conditioning unit a 13.5 Dometic. It has started it at higher altitudes after a moment of thought. From what I have been able to glean from looking around, Westinghouse used some of their proprietary counter rotating fan tech to get their low decibels. Don't ask me how it works but it is as quiet as Honda's. It has passed the neighbor test at 7 AM making coffee. And the Westpro is about half (maybe a bit more) than the cost of a Honda.
"Looking at the strokes may be a clue: both the Honda and the Westpro are oversquare and have 43 and 40mm strokes. The 125 is undersquare at 52x58 mm and undersquare engines are known for torque and not fast response.
Interestingly the Yamaha EF2400is and EF2800i and EU3000i seem to share the same oversquare 171cc engine at 66x50 just rated at 3200rpm (2400), 3600 rpm (2800), & 3800 rpm (3000) which sounds like the 2400 would be better at AC starting particularly if the engine were tweaked to 3000 specs."
"Looking at the strokes may be a clue: both the Honda and the Westpro are oversquare and have 43 and 40mm strokes. The 125 is undersquare at 52x58 mm and undersquare engines are known for torque and not fast response.
Interestingly the Yamaha EF2400is and EF2800i and EU3000i seem to share the same oversquare 171cc engine at 66x50 just rated at 3200rpm (2400), 3600 rpm (2800), & 3800 rpm (3000) which sounds like the 2400 would be better at AC starting particularly if the engine were tweaked to 3000 specs."
