I want to install a wood boiler to heat my 5k sq ft house and hot water. I want set the unit about 125ft from the house. I believe I want a gasification unit for efficiency reasons. I think I should have a storage tank. I was thinking that I would have two pumps. One to circulate from the unit to the storage tank. The second to circulate to the house. I don't think I want a system under pressure. I have looked at many units and it becomes over whelming. I liked the tarm, portage and main to start with. Any thoughts on my idea of the set up? I would like some suggestions on units to consider. I have the skills to do an install myself and thought I would put the unit in a small building if needed. Oh yeh, first time poster, long time follower. Thanks for any input.