Re: Radiant floor heat?
Glycol works to keep the system from freezing. However, it decreases the efficiency of the heat transfer.
It is important to check the tubing/piping in the system. Not all tubing is created equal in respect to anti-freeze. If not compatible the tubing's life will be shortened.
I am building a 3 car garage with a 36' X 20' outside concrete dog run and I am facing these issues in installing radiant heat- inside and outside.