A Centuries-old Concept

Radiant heating is hardly a new technology. In fact, it's been around since ancient Greek and Roman times, possibly longer. Evidence of ancient piping systems is found among the ruins of some of the world's oldest civilizations.

Modern Innovation
Using modern polymer solutions, REHAU has perfected the application of first century discoveries to twenty-first century homes and buildings. We've taken the premise of this relatively simple technology and developed a modern system that circulates warm water through a network of polymer pipes placed in the floor, wall or ceiling. Heat gently radiates to warm surfaces, objects and air in the room, creating a comfortable environment.

What Makes Radiant Heating Ideal for Human Comfort?
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 optimal thermal comfort level for occupants.  


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.

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.

Pipes can be installed above suspended wood floors and encased in a thin slab overpour, usually 1.5 in (38 mm) thick.

Joist Space
Aluminum heat transfer plates are installed directly under the subfloor to conduct heat from the pipes. Joist space installation is sometimes ideal for retrofit construction, since you don’t have to alter your flooring.


Dry Panel
Pipes are snapped into aluminum heat transfer panels placed on top of a suspended wood floor or existing slab. This system delivers the best efficiency and response time. It's also a great option for both retrofit and new construction because it has a low profile and is easy to install.

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 s