So we are in the shoulder season here in Georgia where we jump from a little A/C in the daytime and occasionally have the need for heat at night. The other day we noticed that the air coming out of the vents with A/C on smelled a little musty. It was not not quite like dirty socks but not quite...

All, So I am in the process (still) of putting together my radiant heat system that is comprised of a primary and 3 secondary circuits. For an air separator, I purchased the Bell and Gossett IAS-1 (my primary circuit is 1") to connect to the primary and the expansion tank. The literature and...