Could it be more economical to heat the home with hot water pipes snaking through under the floor board and/or within the walls? <in conjunction with a central heating system... kind of like a hybrid car that runs on batteries/petrol> Modern houses just hold the stored hot water in a container in the basement or garage, which seems inefficient to me. Of course, in the summer a valve could be turned to disable the flow. Or better yet maybe cold water could be routed through.
(In apartments it would be even better, since the ceiling of the downstairs neighbor would be heated while the floor of the upstairs would simultaneously be heated as well... same thing with the walls)
(In apartments it would be even better, since the ceiling of the downstairs neighbor would be heated while the floor of the upstairs would simultaneously be heated as well... same thing with the walls)