I recently purchased a Econoburn 200 indoor boiler which I plan to put in a purpose built outbuilding 50 feet from my home. I want to run the supply and return lines underground to my basement where I hope to put two 500 gallon propane tanks. I will only be heating my floors via the embedded pex tubing (no baseboard, radiators, etc.). I have read conflicting reports here about the need to obtain stratification in the storage tanks....seems if the system only uses low temp emitters such as the pex I have, stratification is not necessary. It would be a real pain to stack these tanks in my basement and I would rather not if it will not be advantageous. Any opinions?