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 RDZ S.p.A. Italia manufacture efficient & cost effective hydronic under floor heating & cooling (HUFH&C) systems.

Cobtech Renewables are pleased to offer their products with D'Alessandro or

ULMA bioenergy water heating boilers.



  • Hydronic underfloor heating & cooling is recognized as the most efficient & cost effective space heating/cooling system available.

  • Hydronic systems require +- 0.6 litres of heating or cooling water/sqm of floor area depending on pipework spacing, providing a comfortable winter temp of +-30 deg°C & hot summer temp of 15 - 20°C.

  • Systems are available for new builds or 'retrofits' installed over existing flooring.

D'Alessandro Italia 20-2000kW biomass boilers are suitable for domestic, commercial, industrial & agricultural hydronic UFH installations.

ULMA AB Sweden 20-60kW pellet boilers are suitable for domestic & commercial hydronic (UFH) installations.


                 Please contact us for suppliers/installers in you region .....


 RDZ S.p.A. Hydronic UFH & Cooling Systems 

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