The second one is an inverter type which will be a lot quieter. You can get the 3100 model at Costco for $699 on sale and $799 regularly. We have it and it runs our 15,000 btu a/c no prob.
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2016 Jay Feather X254
2001 Ford Excursion 6.8L V10 4.30's
Equal-i-zer 1000/10,000 WDH
Previous TV: 2004 Ford Exedition w/ heavy duty tow package[/COLOR]