Another option is to use a Statpower 1,000 Watt Inverter and 450 amp hours of battery power and you can anchor out (on average) for one night. The electric heat option generates 5,640 BTU of heat. Electric heat option is not available in 220/240 Volt configurations.
* 220V units require 3-4 days preparation before shipment. (Electric Heat not available in 220V configuration)
Running amperage: Cool = 6.4amps, E/H = 17.5amps, R/C = 7.5amps. Add approximately one amp for the standard seawater pumps. Start up amperage is calculated by running amperage multiplied by 1.8. On average, This unit is designed to cool cruisers up to 27' and up to 30' sailboats. Unit Measures: L-16" W-11.5" H-11.5"(Left and Top Discharge, add 1" in length)