ThermoDrain Product Families

ThermoDrain is a passive copper heat exchanger that recovers energy from warm drain water and transfers it back to your incoming cold supply, lowering the energy needed to heat water. Explore the three product families below to find the right fit for your project.

  • TD

    TD

    Built for commercial, high-volume multi-residential and institutional drain water heat recovery applications.

  • TDH

    TDH

    Advanced technology delivering high efficiency and high performance in a compact unit.

  • TDX

    TDX

    A compact, high-density heat exchanger built for low-clearance residential installs.

SpecificationTDTDHTDX
Typical applicationcommercial, multi-residential, institutionalRetrofit and new construction - residentialRetrofit and new construction - residential
Drain pipe diameter4 inches3 inches3 inches
Material coppercopperStainless steel outer shell, copper interior
Dual wall ventedyesyesyes
Maintenance requirednonenonenone
Water ConnectionExpansion pex F1960, Crimp pex, copper maleExpansion pex F1960, Crimp pex, copper male360 degree swivel crimp pex (expansion pex coming soon)
Drain connectionMechanical drain couplingsMechanical drain couplingsABS glued or mechanical couplings
Pressure dropMeets regional code requirements (where applicable)Meets regional code requirements (where applicable)Meets regional code requirements (where applicable)
Available length42 to 72 inches32 to 62 inches24 to 72 inches
Available Efficiency46 to 58.4%41 to 57.2%33.59 to 57.27%
CertificationCSA B55.1 & B55.2 (Intertek)CSA B55.1 & B55.2 (Intertek)CSA B55.1 & B55.2 (Intertek)
Limited warranty5 years5 years5 years