Underfloor heating systems use radiant heating rather than the convection of traditional radiators and tend to be more economical because lower thermostat settings are adequate to provide personal comfort. Radiant floor heating is a low temperature system which emits heat energy to provide comfort heating without parallel.
There’s nothing quite like radiant floor heating. It is the most efficient means of heat delivery in existence and it provides greater comfort than any other heating system.
Instead of heating air, radiant floor heating warms people and objects by emitting heat energy at wavelengths of about 5 microns (µm) and when thermal infrared radiation is used to heat objects and people to 20˚C to 22˚C their personal heat comfort can be achieved with air temperatures of only 18˚C to 19˚C resulting in an energy saving of 18% to 24%.
Radiant floor heating delivers personal comfort by controlling the radiation heat loss from the body. If the surrounding surfaces (warmed by radiant heat) are roughly the same temperature as our body surface, we feel comfortable with a good sense of well being.
In traditional central heating systems air passing over the radiators to create convective warm air currents adversely affects the ideal convection loss from our body. The higher air temperatures adversely affect the evaporation loss from our body and this generally results in stuffiness and dryness. These symptoms generally detract from overall comfort. In addition the hotter air rises and leads to a hot head/cold feet syndrome.
Warming the floor to a surface temperature of 25˚ – 28˚C (less than our body temperature) is comfortable to walk on and “feels” neutral. Although the overall sensation is one of comfort the floors will actually only “feel” warm on very cold days when maximum output is required.
People can feel uncomfortable standing on a cold floor or near a cold wall even when the thermometer reads 23˚C and the room is thought to be at the right temperature. This is because the cold surface acts as a ‘heat sink’ and draws heat out of the person’s body faster than it can be replaced. Turning the thermostat up in a traditional heating system will partially offset the radiation losses but comfort is unlikely to improve.
The radiant floor heating system can control 80% of the human body’s natural heat loss and this is why radiant floor heating is so comfortable compared to any other heating system.
Vysal’s electric underfloor heating systems are generally simpler, quicker and cheaper to install than oil or gas fired traditional central heating systems with hot water radiators and they can be less than 50% of the installation cost of a properly controlled plumbed system.