Radiant Floor Heating Cost
Radiant floor heating cost is, in general, 15 to 40 percent more expensive initially than forced air systems, due to more difficulty in installation. However, in the long run, the radiant floor heating cost should be more efficient and cost saving because once installed, it should last two to three times longer than traditional forced air heating systems, and have less maintenance involved. Common costs today range from about $6 to $12 per square foot.
Radiant floor heating cost is also affected by the room or house conditions. These would include: size, number of separate zoned areas required, insulation, windows, if a water heater can be used or a boiler is needed, and whether the system is going into a new or older house. Another variable would be the cost of materials used, such as copper tubing or plastic based tubing. As always, working in a remote area will cost more, and labor costs are yet another cost to consider when installing any system.
Costs are lower because you can set your thermostat a few degrees lower. Heat rises, and the radiant floor heating systems put out heat where it is most needed, at floor level, so it is concentrated lower where it is more useful. There is no need for filters, and maintenance is minimal. There are no ducts to clean, as the copper tubing is sunk into the concrete floors.
Radiant heating dates back to the ancient Romans, who channeled hot air and hot water under the floors of their homes. In Korea, hot flue gases were used the same way before being channeled out of the home. Famed architect Frank Lloyd Wright used hot water in the floors of some of his homes for heating in the 1930‘s. Today, it is a popular option for new home builders. Systems can use air, electric or hot water for the heat source. Since air does not conduct heat efficiently, and electric costs can be higher, the hydronic (hot water) system is the preferred choice.
Comfort and quietness of operation are two advantages. The heat is distributed evenly throughout an area instead of settling in one area of heat flow, or rising to the ceiling too quickly. Some feel radiant systems are more pleasing aesthetically because there are no radiators or vents, and no fan noises. The radiant floor system’s relatively cool water temperatures allow new, high efficient boilers to run at their peak efficiency with water temperature ranges of 85 to 140 degrees. In some cases as high as 98% efficiency can be achieved.
Almost any floor covering can be used, however, remember that thick padding will reduce heat flow and increase costs. New technology in tubing address old problems of corrosion and leakage. Floors can also be used with a chiller to produce cooling effects. Installation into an existing home can be expensive if the floors need major work to install the tubing systems. Consider all variables on paper to calculate the real costs of radiant floor heating.