Yep, you will have to buy 2. I have one Champion 2000W Inverter Gen for camping, looks like a little cube, nice and quiet and a Champion 7500W with 220v 30Amp for the house, both for $1,200. The big one runs just about everything at the house, the little one is nice and light, but won't run my A/C while camping. You need at least 2400W for that, but I could buy another 2000W Champion and parallel them together for around 3600W. Its hard to get one gen for both purposes.