Report a problem or suggest a correction

HVAC Cost Check tracks source, calculation, accessibility, and technical corrections in its public GitHub repository. Describe the page, the value or statement that looks wrong, and the source that supports your correction.

Open a correction or site issue

GitHub issues are public. Do not include your name, address, contractor quote, account details, or any other private information.

What makes a correction useful

Include the page URL, the exact statement or result you are questioning, what you expected, and a source we can verify. For calculator problems, include non-identifying input choices and the displayed result. We review source changes, calculation defects, broken links, accessibility barriers, and unclear explanations.

For background on how changes are handled, read the testing and corrections process.

What this contact channel cannot provide

HVAC Cost Check does not provide contractor referrals, equipment selection, emergency help, quote approval, or individualized engineering advice. Contact a licensed local HVAC professional for an inspection or project-specific recommendation.