Air Trapped In Radiant Floor

In the summer it can also be used to cool the floor.

Air trapped in radiant floor.

Legalett air heated radiant floor heating systems are entirely embedded in concrete including the heater box. Why the legalett radiant floor system works. But much of the sensible cooling will be done by the radiant floor. Air is the worst thing that can happen to any hydronic radiant heating system.

Central heating systems use either a furnace with hot air ducts or a boiler with hot water hydronic pipes and radiators including radiant under floor heat. When water is heated in a hydronic heating system also known as a hot water heating system dissolved air is driven out. You will need one or two wall mounted fan coils in order to keep the humidity low enough so that no condensation occurs on the floor air dew point floor temp. If pressure is dropping below the 15 psi it is an indication of air still trapped in your system.

Eventually this air can become trapped in the hot water lines. It is a closed loop system where air is moved through either 2 or 4 inch pvc tubes which are non corrosive so that no dust from the air in the home is introduced into the system. An air system can also be used to supply central air conditioning and air cleaning. The closed system expansion tank is pre charged and should not need any pressure.