I can't tell you much about a sailboat, but I am a full time liveaboard
, that winters in Philly also.
I have a 440 Aft Cabin
, and here is what I use for heat:
and forward Stateroom, have built in electric heat.
In the salon
I have a oil
filled radiator (One Each)
In the engine
room I use a small electric heater
I find keeping the engine
room warm, goes a long way in keeping the rest of the boat warm.
The aft cabin and forward stateroom, use their normal thermostats. The two oil
filled radiators are plugged into a outlet with a thermostat built in. I found with out that the boat was way to warm.
I do not winterize my fresh water
system, the water tank is under the bed
in the aft cabin. Even with the brutally low temps last winter it was fine. I haul water to the boat in a 100 gallon tank. Most of the time i live on between 65 and 100 gallons a week.
All of my windows get the 3m Shrink Film over them. It was one of the best things I did to insulate the boat. I am luck over 1/2 my boat is double walled one way or another. Cabinets, built in drawers, wiring
chases etc. That helps a lot.
Where do you keep your boat, let me know if I can share anymore information with you.