Ken, the 134lb 3000ISan turned me to the 2000 at 47 lbs. As I said earlier, I am not a boondocker so don't really need the larger unit, however, IF the 78 lb unit was available when I bought mine I would have gone with the larger unit. I would have to look at the specs on the 3000 unit, like constant power, before making a decision. Another words, is it truly a 3000 watt genny or is that peak power?
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