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ARCHIVED - List of Drain-Water Heat Recovery Systems

Information Archived on the Web

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats. Please "contact us" to request a format other than those available.


Access the Updated Drain Water Heat Recovery Products

Please note the list below is not up to date. The link above will bring you to the webpage with the most current list.

The following drain-water heat recovery systems (DWHR) have been tested by an independent testing facility recognized by Natural Resources Canada.

Natural Resources Canada does not endorse the services of any contractor, nor any specific product, and accepts no liability in the selection of materials, products, contractors or performance of workmanship.

Eligible Manufacturers

  • EcoInnovation Technologies Inc. (ECO-GFX)
  • Renewability Energy Inc. (Power-Pipe®)
  • Watercycles Energy Recovery Inc. (WatercycleTM)
Models with an efficiency ranging from 30 to 41.9%:
ECO-GFX/ThermoDrain S3-40 (75 mm/ 3 inch drain at 39.0% steady state)
R3-30 (75 mm / 3 inch drain at 32.9% steady state)
R3-36 (75 mm / 3 inch drain at 37.9% steady state)
R4-24 (102 mm / 4 inch drain at 31.5% steady state)
R4-30 (102 mm / 4 inch drain at 40.4% steady state)


Models with an efficiency of 42.0% or greater:
TD342B (75 mm / 3 inch drain at 42.2% steady state)
TD340A (75 mm / 3 inch drain at 46.0% steady state)
G3-40 (75 mm / 3 inch drain at 46.0% steady state)
S3-60 (75 mm / 3 inch drain at 49.0% steady state)
TD360B (75 mm / 3 inch drain at 53.1% steady state)
S4-40 (102 mm / 4 inch drain at 44.7% steady state)
S4-60 (102 mm / 4 inch drain at 51.0% steady state)
DX-4048 (102 mm / 4 inch drain at 44.0% steady state)
DX-3058 (75 mm / 3 inch drain at 42.0% steady state)
R3-42 (75 mm / 3 inch drain at 42.4% steady state)
R3-48 (75 mm / 3 inch drain at 47.3% steady state)
R3-54 (75 mm / 3 inch drain at 49.2% steady state)
R3-60 (75 mm / 3 inch drain at 53.7% steady state)
R3-66 (75 mm / 3 inch drain at 55.0% steady state)
R3-72 (75 mm / 3 inch drain at 58.8% steady state)
R3-120 (75 mm / 3 inch drain at 67.7% steady state)
R4-36 (102 mm / 4 inch drain at 42.4% steady state)
R4-42 (102 mm / 4 inch drain at 46.1% steady state)
R4-48 (102 mm / 4 inch drain at 52.7% steady state)
R4-54 (102 mm / 4 inch drain at 54.7% steady state)
R4-60 (102 mm / 4 inch drain at 58.4% steady state)
R4-66 (102 mm / 4 inch drain at 59.9% steady state)
R4-72 (102 mm / 4 inch drain at 62.9% steady state)
R4-120 (102 mm / 4 inch drain at 72.2% steady state)


If you find inaccuracies or know of any models that should be included on this list (revised November 1, 2012), contact the Office of Energy Efficiency.

If you obtain an evaluation for your property using the EnerGuide Rating System, these units may be eligible for certain regional programs and incentives.  For links to lists of other types of energy efficient equipment, consult the Compare Product Models page.

Next: Integrated mechanical systems

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