Here is how I did it living through three winters in Rochester NY on my 40-foot pacemaker MV.
My boat had two 30-amp shore power cables
. I added a properly fused third 30-amp cable along with additional receptacles dedicated to the new shore power cable. Snaking the wiring
was very easy, there is quite a bit of room between the hull
and the living compartments that is reasonably accessed. The result was 90 AMPS available in the boat. Each live aboard slip has its own electric service
paid to the utility company not to the marina. I paid to have the utility company upgrade the power on my slip to 200-amp service
. I purchased one of those tiny cube shaped ceramic heaters for each room. These heaters vary the fan speed and current
flow to maintain the set temperature. I also put a 40-watt light bulb under each engine
, and next to each overboard
through hull. The light bulb idea made daily checks in the engine
room easy. This setup worked very well. One storm knocked out the power in the town for a day, that day I ran the generator
and since the marina bubblers were knocked out I ran the main engines in gear
at idle occasionally to keep the slip free of ice. It was a wonderful experience, the wild life that you will see during the winter is entirely different that when the summer has the marina full of people. Deer swimming the Genesee river, beaver making houses, 13 different kinds of ducks, Birds and fox. Electric
heat has no carbon monoxide, expensive but safe.