Thanks for the info. I have been meaning to take a look at the east boston marina. I wonder if there are more liveaboard's there now? There are several at constitution marina. I am now honing in on a Gulfstar 47 Sailmaster. A great liveaboard boat. I appreciate what your saying about the size of the boat. This will be the largest I have owned so far the last one being a Tayana 37. I consider that boat too small for dockside liveaboard. Heating a boat of this size is a factor for sure. It has reverse cycle marine air but I think the water would be too cold for this to work. In fact, I am guessing it would destroy the system. A diesel heater attached to the bulkhead offers some promise. I don't know how dangerous they are and would like to hear from those with experience.