Water Temperature For Radiant Floor Heating

All surfaces within the room are heated to the same temperature as the floor.

Water temperature for radiant floor heating. A pump kicks on and water runs from the water heater and into the floors. You will need to be aware of the incoming groundwater temperature as cold water will drop the overall water temperature. That temperature is safe and comfortable as well as being efficient. Typical radiant heat floor system operating temperatures typical radiant floor systems operate at 85 125 f water temperature entering the tubing and put the floor surface temperature about 5 degrees above the room thermostat set temperature.

When floors are conditioned within this range most people wearing normal footwear will enjoy having their feet on the floor. According to ashrae the american society of heating refrigerating and air conditioning engineers a floor temperature that creates optimal human comfort for most people lies just about at 75 f as shown in this graph. In order to heat the floor the radiant floor heating system uses warm water running through plastic tubing that is installed in the floor. Radiant floor heating and hardwood floors humans appreciate floors temperatures that are controlled to above 66 f 19 c in cooling and below 84 f 29 c in heating.

Water from the floors runs back into the water heater. You really only need a maximum of 120 f for your floor. This includes the walls furniture and of course you the occupant of the building. As warm water circulates through the tubing or as electricity warms the heating elements the concrete flooring turns into an efficient inconspicuous radiator.