Heat Recovery ROI & Payback Calculator
Estimate how fast an air-to-air heat recovery system pays for itself. Enter your duty point and energy cost — the calculator updates live with recovered power, annual energy and cost savings, simple payback, and 10-year net benefit. Then download the formal ROI report template to brief your team.
Your duty point
Estimated savings
–kW recovered (avg)
–kWh saved / yr
–$ saved / yr
–Simple payback (yr)
10-year net benefit: –
CO₂ avoided (@0.45 kg/kWh): – t/yr
Screening estimate. Excludes fan-power penalty and O&M (~1–3 %/yr). A written proposal confirms duty point, controls and guaranteed effectiveness.
How to read the result
- kW recovered is the steady heat moved at your design condition; multiply by operating hours for annual energy.
- Simple payback ignores the time value of money — fine for screening. For capital approvals, also consider discounted cash flow.
- 10-year net benefit = 10 × annual saving − capex, before O&M (typically 1–3 %/yr) and any fan-power penalty.
Levers that shorten payback
| Lever | Wirkweise |
|---|---|
| Operating hours | 24/7 plants pay back far faster than 8 h/day offices |
| Energy price | At $0.20/kWh payback is ~half that at $0.10 |
| Effectiveness | More savings, but size the core — don’t over-specify |
| Heat reuse on-site | Reusing heat beats dumping it to ambient |
Get the formal ROI report
Use the report template to document your assumptions and share with finance or your client.
FREE DOWNLOAD
Heat Recovery ROI Report Template
Enter your work email to get the Heat Recovery ROI specification sheet (print-ready PDF).