ThermoDrain drain water heat recovery energy advisor


Drain water heat recovery - Récupérateur de la chaleur des eaux de drainage

Drain water heat recovery (DWHR). ThermoDrain is a drain water heat recovery unit that recovers energy from waste water and transfers this energy to potable water before entering a water heater. It is different from other heat exchangers in that it has dual walls vented to the atmosphere so that cross contamination between wastewater and potable water is not possible. The heat transfer occurs only when wastewater is flowing down the drain while there is a demand on the hot water heater. This technology can save the homeowner up to 40% on their water heating bills. It can also triple the capacity of a hot water tank for showering. It is considered a comfortable green technology designed for shower lovers who also want to save energy. ThermoDrain is a superior drain water heat recovery technology that is manufactured in North America and comes with an industry leading 10 year warranty.


Energy Building Consultant and ThermoDrain

Increasingly, builders are looking to their energy consultant to guide them toward the best building options for their homes at the lowest cost. ThermoDrain Drain Water Heat Recovery (DWHR) has gained widespread acceptance in the last few years as often being the most cost effective option towards achieving targeted energy ratings.  DWHR can be easily be modelled for EnerGuide and Energy Star homes with the information located on this page.

Natural Resources Canada Drain Water Heat Recovery Energy Credits Links

ThermoDrain™ is Canadian Standards Association (CSA)
Performance and Safety Certified

ThermoDrain is performance and safety certified to CSA 55.1 and CSA 55.2. These new standards have been developed by the Canadian Standards Association specifically for drain water heat recovery technology. 

CSA certified performance TD3xx-B 
CSA certified performance TD4xx-B

CSA certification with numbers 2013.jpg



ThermoDrain can contribute significant credits in many energy rating systems for a very low cost making it the best next step in improving building performance further. Raters should use this information to include DWHR in their building models and to calculate actual applicable credits.