Lower Your Energy Bills and Triple Your Hot Water Capacity

Name: TDX Compact Drain Water Heat Recovery
Brand: Ecoinnovation Technologies
Price: 299.96 USD
Availability: InStock

Heating water is typically the second-highest utility expense in the average North American home, accounting for up to 25 percent of your total energy consumption. Every time you take a shower, thousands of BTUs of expensive thermal energy are literally flushed down the drain stack.
The ThermoDrain Drain Water Heat Recovery (DWHR) system is a completely passive, maintenance-free energy recovery unit that captures that lost heat and uses it to pre-heat incoming cold city water before it enters your water heater.

IS DRAIN WATER HEAT RECOVERY WORTH THE INVESTMENT ?

A ThermoDrain system is one of the highest-yielding green home upgrades available, delivering immediate utility bill reductions year after year. The system works automatically during simultaneous flow events, such as when you are running a hot shower.

As warm wastewater flows down your home's central vertical drain stack, it naturally clings to the inner copper walls in a thin film. The thermal heat passes instantly through the high-purity copper core, pre-heating the fresh, incoming cold mains water flowing through the tightly wound outer coil.

Because the water entering your hot water system is now pre-heated by up to 28 degrees, your water heater works a fraction as hard. This drastically lowers your monthly gas or electricity bills while significantly extending the operational lifespan of your water heater.

Experience the Luxury of Endless Hot Water

Beyond the exceptional financial savings, the single greatest benefit for homeowners is a massive increase in continuous shower comfort.

By reclaiming and recycling waste energy right back into your plumbing lines, ThermoDrain effectively multiplies the capacity of a standard hot water tank up to threefold. If your household frequently runs out of hot water during morning routines, a ThermoDrain unit makes cold showers a thing of the past.

For properties equipped with tankless hot water heaters, ThermoDrain provides an essential cold-weather performance boost, dramatically increasing the peak hot water flow rate during freezing winter months.

Major Utility Validation and Financial Savings (USA & Canada)

United States Validation & Incentives
U.S. Department of Energy (DOE): Recognized as a core building block for the Zero Energy Ready Home (ZERH) program, helping production builders qualify for the Section 45L Federal Tax Credit of up to $5,000 per unit.

Mass Save (Northeast US): Approved and heavily promoted across Massachusetts utilities, offering direct financial incentives and performance path credits for multi-family and residential retrofits.

California Energy Commission (Title 24): Formally recognized as an approved compliance option to meet strict structural energy budget targets in western states.

RESNET HERS Index: Lowers a home's overall HERS score automatically by reducing baseline domestic hot water energy loads.

Canadian Utility & Provincial Estimates
Enbridge Gas: Formally estimates that homeowners save up to 30 percent on the ongoing cost of heating residential water.

Manitoba Hydro: Estimates an overall reduction of over 25 percent on total household water heating bills.

Hydro-Québec: Estimates that families will save between 20 percent and 40 percent on the cost of heating water.

Natural Resources Canada (NRCan): Seamlessly integrates into EnerGuide energy modeling platforms to deliver high-yield performance path credits for local building codes.

Sizing Scenarios: How Performance Math Saves You Money

Your monthly savings depend on the size of the unit installed on your vertical drain pipe stack. Let's look at the performance of two popular residential configurations:

Baseline Value Setup: TDX Builder Pro or TDH3335B (35 Inches Long)

Verified Efficiency: 42.1 percent thermal energy recovery.
How it works: If your cold city intake water is 50 degrees Fahrenheit, this unit automatically boosts the incoming water temperature by 21 degrees, feeding 71-degree pre-heated water directly into your hot water infrastructure.

Ultimate High-Performance Setup: TDX NetZero Ultra or TDH3620B (62 Inches Long)

Verified Efficiency: 57.2 percent thermal energy recovery.
How it works: This maximum-performance unit takes 50-degree cold intake water and injects a massive 28.6-degree boost, feeding 78.6-degree pre-heated water into your system, maximizing your monthly utility savings.

Ready to Upgrade Your Home?

The ideal time to install a ThermoDrain unit is during new home layouts, open wall bathroom modernizations, or basement framing overhauls.

Download our simple residential sizing guide to determine which length fits your vertical plumbing stack, or use our potential energy savings calculator tool to estimate your custom household return on investment.