Yep, you can pull all the power from one large inverter for those large loads that can't be broke down to seperate smaller inverters. Like maybe a Welder or other high power device as well as not needing seperate pannels for each circuit as you probably would need for 2 3000watt inverters.
As for thinking pricing, maybe go with an Aims 5000watt inverter for around $500-$600 for Mod wave. Get all 5000watts from one inverter for less than 1 3000watt inverter. Then go for a true sinewave for what ever you need that for in the size you need.
I like my Aims inverter, seems good and reliable, solid too. I dropped mine hard the other night and it bounced pretty hard off the ground. Oh I was mad too! Knocked the front and rear cover loose from under the screws, figured I ruined it for sure, but it's worked fine for 3 days since then so far. I must have flexed the aluminum case alot when it hit the ground to knock those ends loose like that, but no dents in it. I just have to take the screws out and put the covers back under them.
Perhaps I should either clean my yard up or put a light out there, could have been bad tripping in the dark like that, could have broke the inverter not to mention my kneck!
"you can buy 2 Prowatt 3000 (@ $800 each)"
$1600 for 6000watts, Or $600 for 5000watts, I would probably buy another Aims myself, this one has been good. I bought mine from an E-bay dealer for $480 and drove up to get it in person in Kansas. I use it portable alot and it has been bounced around alot (though dropping it was only once) and it's ran everything I put on it so far as long as I have enough batteries connected for the amps. Only problem has been a digital clock, really bad for keeping time. Could have been the clock or inverter or combination of both, not sure. Frig, freezer, large aircompressor, no problems.
