Commercial & Institutional Drain Water Heat Recovery
Cut commercial hot water heating energy costs by up to 45% with maintenance-free, CSA-certified ThermoDrain technology.
ThermoDrain Specification Sheets and
Drain water heat recovery engineering technical binder
The ThermoDrain is the latest technology in Drain Water Heat Recovery. Its unique design provides outstanding
savings that can be attributed to its superior performance and durability. With its exclusive features, the
ThermoDrain is simply the best technology available today!
EXCEL SHEET- Potential energy savings calculator
PDF- Engineering technical binder
PDF - TDX ThermoDrain 3" drain diameter specifications sheets
PDF – TDH ThermoDrain 3″ drain diameter specifications sheets
PDF – TD ThermoDrain 4″ drain diameter specifications sheets
COMPLETED DRAIN WATER HEAT RECOVERY COMMERCIAL, INDUSTRIAL AND INSTITUTIONAL PROJECTS
6 ThermoDrain TD480A3 series being used in a commercial laundry application
Commercial Laundry & Dishwashers
- Laundry Savings: ~35% energy reduction
- Dishwasher Savings: 32% to 45% hot water reduction
- Payback Period: 2 to 5 years
- Key Advantage: Non-clogging design; requires zero filtration or maintenance.
Sports Facilities & Group Showers (16 Showers)
- Annual Energy Savings: $1,905 / year
- Energy Loss Prevented: 272 GJ / year
- Payback Period: 3.4 years
- Configuration: Cold water preheating with 4 ThermoDrain units.
Hotels & Hospitality (80 Rooms @ 70% Occupancy)
- Annual Energy Savings: $2,654 / year
- Energy Loss Prevented: 583 GJ / year from shower drains
- Payback Period: 6.8 years
- Configuration: 1 ThermoDrain unit per 2 adjacent rooms.
Multi-Unit Residential / Housing (24 Units)
- Annual Energy Savings: $1,519 / year
- Payback Period: 3.0 years
- Configuration: Central water heating; 2 ThermoDrain units per drain stack.
Code Compliance, Performance Standards & Material Specifications
North American Energy Code Compliance
• Ontario Building Code (OBC SB-12): Fully compliant with mandatory prescriptive paths requiring a minimum 42% rated efficiency per CSA B55.1.
• National Building Code of Canada (NBC 9.36): Serves as a vital compliance pathway for achieving Tier 3 through Tier 5 energy performance targets.
• US IECC & ASHRAE 90.1 / 189.1: Recognized compliance measure for commercial and multi-family building energy efficiency mandates.
• California Title 24: Registered with the California Energy Commission (CEC) as an approved compliance option for residential and commercial domestic hot water heating.
Safety, Plumbing & Performance Certifications
• Double-Wall Potable Safety (CSA B55.2): Vented double-wall copper and alloy construction provides a fail-safe physical barrier with an external leak-detection path, preventing cross-contamination between drain wastewater and drinking water.
• Efficiency Verification (CSA B55.1 & IAPMO IGC 346): Third-party tested and verified by Intertek for heat recovery efficiency and minimal pressure drop.
• Model Plumbing Code Approved: Fully compliant with the International Plumbing Code (IPC), Uniform Plumbing Code (UPC), and National Plumbing Code of Canada (NPC).
ThermoDrain TDX Series & Material Specifications
• TDX SS316 Heavy-Duty Outer Shell: Features a marine-grade Stainless Steel 316 outer shell paired with a high-conductivity copper interior core, delivering maximum structural durability and high heat-density recovery in low-clearance or harsh installation spaces.
• Enhanced Corrosion Protection: Stainless Steel 316 grade shielding provides superior resistance to aggressive water chemistries, chlorides, and environmental exposure in commercial and residential retrofits.
• Potable Water Tubing & Core Pipe: Heavy-gauge, seamless ASTM B88 copper inner tubing and ASTM B306 DWV copper drain piping.
• Fittings & Flexible Layouts: ASME / ANSI B16.18 and B16.22 compliant connections. Certified for Equal Flow (split feed to heater and fixtures), Water Heater Feed Only, or Shower Feed Only configurations.
Green Building Ratings & Decarbonization
• LEED v4 / v4.1 Certification: Earns valuable points under Energy & Atmosphere (EA) credit categories for optimizing energy performance.
• HERS & ERI Index Scores: Substantially lowers HERS (Home Energy Rating System) scores and ERI points in energy modeling for multi-family and residential builds.
• Decarbonization & Net-Zero: Directly reduces peak electric and gas domestic hot water demand, helping new developments hit Net-Zero Energy (NZE) goals.