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Found a calculator giving you a number that looks off? Have a correction on the methodology, or a question about how a tool works? Here's how to reach us.
Wrong result, broken input, or a calculator that doesn't match the guide next to it — tell us what page and what you entered, and we'll take a look.
Email bugs@hvactoolsuite.comQuestions about the methodology, a correction to suggest, or feedback on the site — same inbox, just say what it's about.
Email bugs@hvactoolsuite.comThe fastest way to get a bug fixed is to give us enough to reproduce it. When reporting a calculator issue, include:
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