Should I upgrade to 2000w in parallel or single 3100w ?

Interesting product, I wonder if it does what it says and works with 2000 watt inverters and 15k A/C units.

What they say specifically is that an eu2000i will run a 15k or 16k air conditioner. I don't question that the EasyStart will allow the generator to start the air conditioner. IMO, most if not all 15k air conditioners will on a hot day pull more power than the 1600 VA rating of the eu2000i, and this is a very irresponsible statement on the part of the company. Seems to me they're asking for a lawsuit.