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Privacy Policy

Effective Date: June 2026 · Last Updated: August 2026

At Tonnage Calculator AC (“we,” “us,” or “our”), we are committed to protecting your privacy. This Privacy Policy explains what information we collect, how we use it, and your rights regarding that information when you visit tonnagecalculatorac.com(the “Site”).

1. Information We Collect

1.1 Calculator Inputs

When you use our AC tonnage calculator, you enter room dimensions, climate zone, occupancy, and other parameters. All calculations are performed entirely in your browser. This data is never transmitted to our servers, stored in any database, or shared with any third party. The optional ZIP code field described in section 1.2 is not a calculator input and is handled separately.

1.2 Optional ZIP Code Lookup

Pages that show a sponsored phone number also offer an optional ZIP code field. It is entirely optional, the phone number works without it, and nothing is sent anywhere unless you type a five-digit ZIP code. The lookup never runs on its own.

If you do enter one, that ZIP code alone is sent to Zippopotam.us, a free postal-code service, purely to look up the matching city and state. Nothing else about you or your visit is included, and your ZIP is not attached to any calculator result. As with any request your browser makes to another website, that service will see your IP address; its own privacy practices apply to what it does with it.

We do not send your ZIP code to our own servers and we do not store it in any database. It is kept in your browser's session storage so the page stays personalised while you move around the Site, and it is discarded when you close the tab. Clearing the field removes it immediately.

1.3 Automatically Collected Data

Like most websites, we may automatically collect certain technical information when you visit the Site, including:

  • IP address (anonymized where possible)
  • Browser type and version
  • Operating system
  • Pages visited and time spent
  • Referring URL

This information is collected through standard web analytics tools and is used solely to understand how visitors use our Site and to improve the user experience.

2. How We Use Your Information

We use the information we collect to:

  • Provide and maintain the Site
  • Analyze usage trends to improve our calculator and content
  • Ensure the security and integrity of the Site
  • Comply with legal obligations

We do not sell, rent, or trade your personal information to anyone.

3. Cookies & Consent

We use cookies to ensure our Site works properly and to measure how it is used. Upon your first visit, you will be presented with a cookie consent banner. Visitors in the European Economic Area, the United Kingdom, and Switzerland are not tracked at all until they select “Accept All”. Elsewhere, analytics runs by default and choosing “Reject” switches it off; we also honour the Global Privacy Control signal if your browser sends one. Whichever you choose, we ask again every 180 days, and you can change your choice at any time via the Cookie Preferences link in the footer. You can read full details in our Cookie Policy.

4. Third-Party Services & Advertising

We work with a small number of third parties. Only the first of them sets cookies or similar technologies on this Site:

  • Google Analytics: Helps us understand how visitors use the Site. When analytics is switched off (either because you rejected it, or because you are in a region where we require opt-in and you have not opted in), Google Analytics sets no cookies and receives only anonymous, cookieless signals that cannot identify you.
  • Advertising: We do not currently display advertisements, and no advertising cookies are set on this Site. We are applying to Google AdSense. If ads are introduced, we will update this policy first, and personalized ads will be served only to visitors who selected “Accept All”. Everyone else will see non-personalized (contextual) ads that do not rely on tracking cookies.
  • Sponsored phone number: Some pages show a phone number as a paid placement. Tapping it opens your device's dialer and sets no cookie; we do not see the number you call from and capture no personal details. If you have allowed analytics, we log an anonymous event that a call button was tapped, along with which page and placement it was on, so we can measure which pages produce calls — it never includes the number you dial or anything identifying you. If you place the call, our partner network routes it to an HVAC company, and that network receives your phone number along with whatever you choose to tell them, under their own privacy practices rather than this policy. We are paid for qualified calls. We are not an HVAC contractor and perform no work ourselves.
  • Amazon Associates: Some pages include links to products on Amazon. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program, and we earn a commission from qualifying purchases at no extra cost to you. These links set no cookies on this Site and we receive no personal information about what you buy. Once you click through, you are on Amazon and Amazon's own privacy notice and cookies apply.

Users may opt out of personalized advertising by visiting Google's Ads Settings.

5. Data Security

We take reasonable measures to protect the information collected through our Site. However, no method of transmission over the Internet or electronic storage is 100% secure, and we cannot guarantee absolute security.

6. Children's Privacy

Our Site is not directed to children under 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected personal information from a child under 13, we will take steps to delete it promptly.

7. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated effective date. We encourage you to review this page periodically.

8. Contact Us

If you have questions about this Privacy Policy, please contact us at [email protected] or visit our Contact page.