Hi all ...I am still culling over the install of a wood gasification unit ...probably an Eko 40 but I have not totally decided on the unit yet. I have decided that I need water storage if I am going to do this. My question is this ...I have a shed area of roughly 8x12 to put everything in. I have located a couple of smaller used propane tanks (350 gallon, 250 gallon) asnd may be able to locate a used 500 gallon propane tank in the next month or so. Even if I get the 500 gallon and as a result do not have to use two tanks to get the 500 gallons that I believe I will need .....laying out an install does not seem to work when I take into consideration the clearances that Tarm and Eko recommend ....is this because of wood framing? Can I get by with less clearance if I line the interior wood frame walls with metal? The shed will be insulated very well .... Thx again ...RH