Under floor heating from the whole floor area of the house gently warms the air above, eliminating cold spots. The warm air convicts from the floor surface losing approximately 2 degrees centigrade at 2.0 meters above the floor, which makes the system ideal for all ceiling heights.
Independent tests reveal that the most acceptable indoor climate is one in which the floor temperature ranges between 19-29°C and the air temperature at head level ranges between 20 and 24°C. With radiator or convector heating systems a vertical temperature gradient is produced; colder at foot level than at the head.
Under floor heating has made it possible to reduce energy consumption by using low water temperatures. These systems, based on the development of complex and very high quality plastic pipe, such as the multilayer pipe, now account for over 60% of some European heating markets.