Hydronic Slab underfloor heating is the most commonly installed hydronic floor heating system in Australia. The system is best suited for heating polished concrete, tile, stone and floating timber flooring.
A variety of heat sources can be used to heat the water, the most common being gas boiler. And due to the thermal mass of concrete, off-peak energy sources or solar type energy sources can be used to pre-heat the slab at lower running costs.
When in operation, heated water circulates through hydronic pipes embedded in the concrete slab, heating the concrete slab as it does so. The concrete slab in turn releases heat gently and evenly throughout the room and can be used as a primary heat source or as a background comfort heating solution.
Hydronic Slab heating produces an amazingly comfortable warm home, and is arguably the best heating solution for large open living areas such as kitchens, living and dining rooms.
| Application | Hydronic Slab underfloor heating is suitable for large areas (60 m² +), with piping embedded in-slab with a minimum 30mm concrete cover |
| Heat Output | From 60W/m² |
| Piping | Pipe options with oxygen barrier for underfloor heating applications include 16-20mm PE-RT/Al/PE-RT, PE-RT and PEX |
| Manifold | Stainless steel manifolds complete with flow meters and auto air bleed valves |
| Control | Programmable room or floor sensing (or a combination of both) control. On/off connection and control is also available through most home automation systems |
| Heat Source | Electric heat pumps, H2 ready gas boilers or hydrid solar pre-heat |
The Hydronic Slab floor heating pipe is installed before the slab is poured.
- The pipe is attached on top of the structural welded mesh (SL62-SL82) at 200mm centres. Where rod style mesh is used and rods are not evenly spaced at 200mm centres, a superfluous layer of mesh (SL52) can be used to clip the pipe onto.
- Insulation below slabs on ground is recommended to minimise heat losses downward into the ground.
- The hydronic pipe work connects back to a central manifold which in turn connects back to the hydronic heat source