Well I have been searching and reading through the threads and really haven't stumbled upon my situation. I will be building in Montana a single level 1200 sf ft home of ICF with a suspended concrete slab and hydronic floor heat. Very well insulated. Only energy available is propane, heating oil and electricity,,, and wood lots of softwood only. Pine, fir and larch. I have lots of experience cutting wood and already have the saws, hydraulic splitter, trailer and the wood is free to almost free. Water table is 8 ft below grade, so not sure it that is good or bad for geothermal? So what kind of system is practical for my size home? I gather that boilers really aren't made for smaller homes? Somebody point me in the right direction. THANKS.