The panel itself reaches operating temperature in only three to five minutes. This product is similar but is constructed a bit differently. Because the panels respond quickly, people can turn the heat on and off as they would the lights. Duct losses are eliminated in a radiant system. Air leakage - A blower door test showed that sealing off heating registers and returns cut air leakage in the test house by 12.5 percent.
Additional leakage is created by the internal air pressure generated by forced-air systems.
Radiant panels don't suffer these problems. Furnace blowers can use considerable energy that doesn't get delivered as heat. Zoning - Energy can be saved by maintaining comfort temperatures only in the rooms occupied by people. Called zoning, this idea can be used with most types of heating systems. The controls needed to zone a forced-air system make it very expensive.