If I was to install my tarm solo 60 on the back wall of my attached garage would it be better to have the pressurized storage tanks up in the garage next to the tarm or directly below the tarm in the basement? I am able to get the tanks in the basement fairly easy. The tanks would only be about 10 feet max from the boiler and the top of the tanks would be about 2 feet below garage slab that boiler sits on. I understand that the tanks need to be higher than the boiler to thermosiphon during power failure ,but space is more generous in the basement. Please chime in.