A pure sine wave is more like your home outlet and able to power more devices.
Power Circuits (panels with breakers)
Critical Load Panel
A Grid-tie inverter with Limiter will not put more power into your local grid than you use, so as to not back feed the utility grid.
Radio Shack 300 Watt DC to Dual Outlet AC Power Inverter (manual). 30A fuse. "When the inverter's input voltage decreases to lower than about 11 volts DC, it sounds an alarm indicating the connected vehicle battery is weak. Stop operation immediately. When the input voltage decreases to lower than about 10 volts DC, the inverter's output cuts off to prevent battery power drainage." Standby Current: 0.4 A @ 13.8V
Pre-charge Large Inverter Capacitors with this resistor on first connect to 24v battery bank. (Will's recommendation)