Radiant ceilings, available from CBS Radiant Heating Systems , are a good alternative. They can easily operate at surface temperatures up to 38 degrees Celsius, delivering in excess of 174 watts per square meter. Since ceilings are typically constructed of gypsum based sheet rock (Gyprok), they offer very little resistance to thermal transfer.
Radiant ceilings accelerate fast, when needed, to meet a big change in heating load. They dissipate energy fast as well. The responsiveness of radiant ceilings makes them excellent for modern controls, placing energy where it is needed when it is needed, and achieving superior comfort and efficiency. Some high mass radiant floors are sluggish in that they take a long time to accelerate to meet the load.
Without a doubt, radiant ceilings cost far less than radiant floors. In most cases they cost less than half that of an under tile radiant floor. Lower cost means more opportunity. They take less effort to design and install. Radiant ceilings are perfect for retrofit situations. It is very inexpensive and easy to lower a ceiling to accommodate the radiant ceiling, but difficult to raise a floor. But when the going gets tough, the heat losses are high and the floor coverings are plush, radiant ceilings are hard to beat.