Air Trapped In Radiant Floor

Eventually this air can become trapped in the hot water lines.

Air trapped in radiant floor.

Why the legalett radiant floor system works. Air trapped within a closed radiant system is the most common cause of inefficient system performance. But much of the sensible cooling will be done by the radiant floor. Legalett air heated radiant floor heating systems are entirely embedded in concrete including the heater box.

Fortunately it s an easy problem to solve and won t become an issue at all if care is taken during the initial filling process. An air system can also be used to supply central air conditioning and air cleaning. 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. Thus creating a vacuum this will suck air into the system.

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. When water is heated in a hydronic heating system also known as a hot water heating system dissolved air is driven out. The closed system expansion tank is pre charged and should not need any pressure. 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.