Privacy

This site does not use analytics, advertising pixels, or account logins at this time.

The BTU calculator runs entirely in your browser. We do not collect the numbers you enter.

Contractor mode details (company, phone, license, logo URL) and your ZIP/climate defaults are saved only in your own browser’s local storage. Share links carry the result in the link itself; email/text handoffs open your own mail or messages app — nothing is sent to us.

Hosting may generate standard server/CDN logs (IP, user agent, URL) operated by Cloudflare. We do not sell personal information.

If we add analytics later, this page will be updated before any tracking goes live.