Battery Powered Air Conditioning by Mabru on a '73 Bertram 28. Is 17,000BTU too much? Will it Work? 

Thanks Bill! Yes, this is the 17vfd and at full speed we consume about 20% less. The other difference is reduced temp fluctuations and no peak starting amps. We can run this unit with no issues at all off of a 2000w inverter. I had a hard time starting a 12k standard unit without a pump connected to a 2800w inverter for reference. This does not take into account the amperage difference when the unit is just maintaining a set temperature. I’ve seen as low as 300w draw on this one