Re: Is this a good inverter?
I run my whole bus off ~1500 watts split between the two inverters including, at times, two mini fridges, a 27 inch CRT TV, a small home theater setup, a PS2 or other gaming device, fluorescent lighting throughout, and whatever else might get plugged in. I think you should be ok in terms of size, but look at your heater. Electric heaters use A LOT of power. Even if the inverter is capable of running the load I certainly hope you don't intend on doing it off battery power as this will quickly zap them dead.
What brand inverter is that?