Science shows that heat emission from the human body occurs mainly via three mechanisms: radiation, evaporation and convection. Humans feel most comfortable when they can regulate at least 50% of their heat emission via radiation, and when their feet are warmer than their heads.
Radiant heating systems provide heat on the basis of low heating surface temperatures over a large area and an even air temperature distribution with mild, comfortable radiated energy. In contrast to conventional forced-air systems, a radiative equillibrium is generated between people and the surfaces throughout the room, more closely achieving the optimum thermal comfort level for occupants.
REHAU radiant heating systems distribute energy uniformly and efficiently by circulating heated water through a network of pipes installed in floors, walls or ceilings. A radiant system can be the primary source of heating or can serve in combination with a traditional HVAC application to improve overall energy efficiency while achieving an ideal level of comfort. Heat gently radiates to warm surfaces, objects and air in the room, creating a comfortable environment.
A variety of heat sources can be used to warm the water for a radiant system, including boilers, geothermal heat pumps, solar collection systems and water heaters
Step onto a floor with REHAU radiant heating and experience comfort at its best. Heat is gently radiated through the space virtually eliminating cold spots and temperature fluxuations. Radiant heating is quiet, clean and economical, and works with a variety of heat sources and floor coverings. Other benefits include:
A radiant heating system keeps floors warm and dry, making hard surface flooring more comfortable.
Because of its exceptional comfort at relatively low operating temperatures, radiant heating is very energy efficient. Optimizing the radiant panel design using strategies such as room-by-room zoning can add to your energy savings. Radiant heating can be the primary heat source or serve in combination with auxiliary heating systems, and can be installed almost anywhere heat is needed.
It’s easy to zone a radiant heating system using multiple thermostats. This allows you to adjust temperatures in a single room or a group of rooms, based on activity and usage levels.
Radiant heating can be used in floors, walls and ceilings and can be installed in a single room or throughout your home or building. There are no heaters, radiators or vents, so you’ll have more design freedom and open space. Radiant heating is ideal for open floor plans, especially in areas with high ceilings.
Improved Energy Efficiency
Radiant heating allows a thermostat to be set up to 4ºF (2ºC) degrees lower than with a traditional hot air system without sacrificing comfort. Lower operating temperatures reduce fuel consumption, which can save up to 30% per year in heating expenses. And since radiant heating can be used with a variety of heat sources including geothermal heat pumps, solar collection systems and condensing boiler technology, you can achieve even further savings.
Wherever Heat is Needed
No matter what kind of space you need to heat, there’s a radiant heating design that will work for you. REHAU radiant heating is compatible with a variety of floor coverings, including hardwood, carpet, vinyl, ceramic, tile and natural stone.
Concrete Overpour Method
Pipes can be installed within a normal concrete slab either on or below grade, usually with no design changes to the slab. It is very important to use the right amount of insulation under a heated slab for optimal efficiency and response time.
This wet installation method is ideally suited for basement floors, warehouses, utility buildings and large-scale commercial projects. This is a common installation method for new construction.
Thin-Slab Overpour Method
Pipes can be installed above suspended wood floors and encased in a thin slab overpour, usually 1.5 in (38 mm) thick.
Joist Space Method
Aluminum heat transfer plates are installed directly under the sub-floor to conduct heat from the pipes. Joist space installation can be an ideal solution for retrofit construction since you don’t have to alter your existing flooring, or whenever a poured floor just isn’t practical.
Dry Panel Method
Pipes are snapped into aluminum heat transfer panels placed on top of a suspended wood floor or existing slab. This design has a low profile, is easy to install and delivers the best efficiency and response time.
Radiant Walls and Ceilings
Floors aren’t the only possibilities for radiant heating. With the proper design techniques, you can enjoy a highly effective radiant system when pipes are placed within a stud wall or ceiling. These other surfaces can provide a perfect solution for retrofit radiant systems and rooms with floor areas that are too small to provide sufficient heat.