WHAT IS DRAIN WATER HEAT RECOVERY?

How does residential drain water heat recovery work? What can it do for you?

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Passive Energy Recovery Engineered for Modern Building Infrastructure

Drain Water Heat Recovery (DWHR) is the most cost-effective mechanical upgrade to meet rising building code stringencies (like Ontario SB-12, BC Step Code, and Net-Zero standards). By passively capturing up to 57% of thermal energy from falling shower greywater, ThermoDrain offloads up to 10.7 kW of peak workload from water heaters. The result is a substantial reduction in utility costs, up to 3x more hot water delivery, and immediate performance credits in architectural energy modeling.

Savings

Up to

Recyclable

Environmentally Responsible Product

1   X

More Hot Water!

Evaluating True Return on Investment (ROI)

When specifying a DWHR system for high-volume builds, don't buy by physical height—buy by verified performance.

To find your true project ROI, divide the unit's third-party verified efficiency rating (CSA B55.1) by your fixture hardware cost. The TDX and TDH series are optimized to yield the highest percentage of energy recovery per dollar invested, ensuring developers don't overpay for raw copper material.

+ 100 K

+100,000 Installed ThermoDrains

+ 100000 ton

Removed CO2 in Atmosphere/Year

Residential

Commercial