Let heat rise from under your feet .
With PEXa underfloor heating, the whole floor becomes one large heat emitter. Low-temperature water heats the room evenly and silently; there are no radiators, so walls and window areas stay free.
PEX-a · UponorLocal heating and cooling distributionWarm feet, cool head.
The human body feels comfortable when it is warm at the feet and slightly cooler at head height. Underfloor heating comes very close to this ideal profile; radiators carry warm air up to the ceiling.
Schematic · typical vertical temperature profile in a room. Actual values vary with the building, insulation and operating conditions.
The right comfort
Heat rises from the floor; feet stay warm and the head stays cool. Less heat is wasted collecting under the ceiling.
Low temperature, new energy
The large surface works with low water temperature. It is ready for sources such as heat pumps, solar and wind.
Invisible installation
No radiators, panels or pipes on show; walls, window areas and furniture layout stay free.
From the hammam to the dry system.
Underfloor heating is as old as humanity. We joined this journey in 1986 with ISIYER; today we move forward with the fifth generation, a screed-free dry system.
Hammam and tandoor
The hammam and tandoor, using the heat of an open fire.
Metal pipes
The first water-based systems; metal pipes were laid in the floor.
Plastic pipes
We brought them to Türkiye with ISIYER in 1986; they caused problems.
PEX-a in wet screed
Cross-linked pipe running through the screed: long life, trouble-free operation.
Siccus
A screed-free system with aluminium plates; it sits just under the floor covering and runs on 30–35 °C water.
Explore Siccus →Underfloor heating, layer by layer.
In the wet system, PEXa pipe is fixed to a studded insulation panel and stays inside the screed. The insulation directs heat upwards; the edge strip absorbs the screed’s expansion.
From villas to mosques, from sports halls to building sites.
Siccus · dry system
Screed-free underfloor heating with aluminium plates.
Climate from the ceilingBioiklim
Heating, cooling and hot water in a single radiant system.
MaterialsUponor product lists
Manifolds, Q&E materials and control products.
Let’s turn your floor into a heat emitter.
Talk to our team about heat loss calculations, pipe spacing, manifold layout and the bill of materials.