Get in touch
Questions about a calculation, a correction to report, or a tool you wish existed — all of it is welcome. Error reports are especially valued: every submission gets checked against the tool’s test suite, and confirmed fixes ship with a note in the tool’s changelog.
Email: contact@ductmath.com
If you’re reporting a possible error in a tool, including these three things makes the fix fast:
- Which tool and page you were using
- The exact inputs you entered (e.g., the full model number, or pressure and temperature)
- The result you expected and why — a nameplate photo or chart reference is perfect
For contractors: if you’d like to embed a DuctMath calculator on your own website for your techs and customers, mention it in your message — a free embeddable version with setup instructions is available on request.