Hi Rob, I live in Kimberley, BC and am presently doing a major reno/rebuild of our existing house. I am also challenged with trying to determine the best long term solution for heating our house. We have instaled radiant infloor heat on all levels and also have a masonry wood heater. Due to large fir trees on the south side of our house in our neighbours yard we do not receive enough southeren sun to consider solar hot water. My plumber and I cannot decide if its better to go with an on demand boiler, electric verses gas on a stand alone boiler which would be gas. I had not considered the heat pumb option but am now wondering if this is something I should be considering? Any suggestions would be appreciated.