What is the ROI of drain‑water heat recovery by province/state with current energy prices?

Trade Talk
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What is the ROI of drain‑water heat recovery by province/state with current energy prices?

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DWHR setups usually save you more money where energy is pricey and you use lots of hot water. In Canada, places like Ontario and British Columbia get good returns because natural gas costs a lot and it’s chilly. In the U.S., states such as California and New York are checking out DWHR for homes and bigger energy projects. You might get your money back in 2 to 10 years, depending on where you live and what energy costs.

Tell me where you’re at, and I can give you a better idea of how much you could save and how long it would take to pay off a DWHR system.

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The return on investment (ROI) for drain-water heat recovery systems varies depending on several factors, including the type of system, energy prices, and local regulations.

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Drain-water heat recovery ROI varies by energy prices and usage: payback is typically 2–7 years in North America, with highest returns in regions with expensive electricity or gas. Ontario data shows CA$338–487 annual savings on a CA$500–1,000 unit, giving 30–50% yearly ROI.

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DWHR saves approx 25% on water-heating. Payback: 3–6 yrs (high-cost electric), 5–10 yrs (mid-cost electric), 12–20+ yrs (gas). Install: $800–$1,800.

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Drain-water heat recovery saves the most money if you heat water with expensive electricity often paying for itself in 2–5 years in places like Hawaii or California, 5–8 years in mid-price areas like Ontario or New York, and 8–15 years where power is cheap like BC or Québec.

If you use gas, it usually takes 10–25 years to pay back unless gas is very expensive

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DWHR saves approx 25% on water-heating. Payback: 3–6 yrs (high-cost electric), 5–10 yrs (mid-cost electric), 12–20+ yrs (gas). Install: $800–$1,800.