Radiant heating compares very favorably with forced air heating due to its general increased efficiency and ability to operate without spreading allergens, according to the U.S. Department of Energy. Radiant floor heating also delivers quiet results while heating a home evenly using natural convection instead of forced air.
Forced air systems suffer from parasitic heat loss, which is the natural tendency of the heated air to lose its temperature as it passes through ductwork. As the ducts pass through colder areas of the home, air cools and loses much of its ability to heat the destination. Radiant floor heating, and many radiant wall options, eliminates the need for ductwork by heating the area just beneath the floor. Heat rises naturally in the room, making the area near the floor the warmest part of the home and cooling the entire room as cooler air from above descends to create a natural convection effect.
Radiant heat is also capable of better zone control than forced air heating, making it possible for homeowners to heat specific areas of their homes reliably and efficiently. The lack of blowing air also helps prevent transmission of airborne allergens. Forced air systems may constantly stir up and circulate dust and other unwanted elements in a building.