Underfloor heating contributes to sustainable living
Energy efficient invisible and comfortable!
In new construction projects and renovation of existing housing there is a strong focus nowadays on comfort and low energy consumption. As a result, underfloor heating in becouming increasingly popular. Ideally suited in combination with Low Temperature Heating, underfloor heating provides a comfortable indoor climate and is also energy efficient.
A good example is the Underfloor Heating Lake District project from Cumbrian Homes:
The main advantages of underfloor heating are the even heating of the living space and, thanks to the radiant heat, a high comfort level at a much lower air temperature (19 to 20 degrees) than with conventional heating. Thanks to this lower temperature there is less heat loss, the return is higher and sometimes there are substantial energy savings.
Hot water and electricity
There are basically two ways of underfloor heating: by means of hot water and electric systems.
The manifold is, as it were, the traffic regulator and has the function to distribite the hot water from the central heating boiler or other heat source into the heating pipes. The water circulates in the pipe system to this extent that the thermostat has cooled down, add hot water is released again.
Low temperature heating
Underfloor heating is excellent for interfacing with low temperature heating. This is possible with the normal central heating boiler, but it is better in combination with geothermal heat and a heat pump. With low temperature heating with a boiler the supply and the return temperature of the boiler water is significantly lower than the usual values of conventional heating systems with radiators. The flow temperature will not exceed 55 degrees and the return temperature is somewhere in the region of 45 gaden. When geothermal heat in combination with a heat pump is used, the supply temperature can be as low as 30 degrees.
Electric underfloor heating
An alternative for low temperature underfloor heating is electric underfloor heating. We distinguish three different forms: embedded cables in the floor, thin heatingmats of textile or fiber with a curled pattern of thin (2-3 mm) insulated resistance wire, covered with conductive foil carpet or laminate.
Electric underfloor heating is fitted directly under a tiled floor or under another thin finish and the floor hardly increases in thickness. In most cases, people are advised to use electric underfloor heating only in small spaces as additional heating, although it can also serve as the main heating system. That, however, requires a capacity of at least 190W/m2 when about half of the floor area consists of electric underfloor heating.
Finally, it is worth mentioning the principle of infrared underfloor heating. This heating technology is based on amorphous metal, a metal alloy that submits infrared radiation. The heating elements of the underfloor heating system consist of Ribbon elements, metal strips of just 25 microns thick that produce heat through infrared radiation. These ultra thin metal strips are processed in mats or panels.