Joe:
I have the Xantrex ProSine 2000 watt inverter/charger. I have had this since 2001. One time I had to send it in for repairs and they fixed it free of charge. If I were buying one again, I would buy this one. At 2,000 watts, we can actually run the hot water heater which is crazy, but on a cold AM with the engine on, we can turn on this inverter and flip on the water heater. Then in 10-15 minutes we have hot shower water. NOTE: We rarely do this, but it does work. We mainly use this to make the 120 outlets hot on anchor which then can run laptop chargers and a TV and Microwave.
www.xantrex.com/power-products/inverter-chargers/prosine-2.aspx
copy of info from url
2000 Watt Pure Sine Wave Inverter/Charger
Provides 2000 watts of pure sine wave AC power from a DC source and 100-amp multistage battery charging.
A powerful all-in-one solution, Prosine 2.0 inverter/chargers (part#805-2000 – hardwire version) deliver up to 2000 watts of unsurpassed clean pure sine wave output power and combines this with a 100 amp, multistage battery charger. Series stackability allows for two units to power 240 VAC applications such as power tools, over ranges, washer/dryer combinations and air conditioners. The Prosine 2.0 is ideal for upgrading your electrical system in a boat, RV, or a utility vehicle. The system includes a full function LCD remote control panel and battery temperature sensor.