Unfortunately, due to the complicated nature of steam, acquiring a boiler, and several other questionable variables (including money) my idea has been somewhat changed. It still serves the purpose of building an alternative energy hot tub. For you haters out there yes I know it's not a green option, but I don't care. Trees are renewable. Looking at this wood stove from the project http://www.gandermountain.com/modperl/product/details.cgi?pdesc=US-Stove-Company-1261-Small-Logwood-Cast-Iron-Stove-900-Sq-Ft&i=433923&r=view&aID=505K1A&cvsfa=2586&cvsfe=2&cvsfhu=343333393233&cID=GSHOP_433923