[scottorious]

So one of my projects hopefully will be a solar water heater. hopefully I'll have in my basement a huge tank of hot water. other than hot water usage I would like to find a good use for that heat. My house has a very open floor plan and I think it would be possible to remove a wall and rebuild it as a thermal mass, out of concrete blocks. Does anyone think a centrally located radiant thermal mass would heat the open areas of the house.