Terms of Use
Effective Date: June 2026 · Last Updated: June 2026
By accessing and using tonnagecalculatorac.com(the “Site”), you agree to the following terms and conditions. If you do not agree, please do not use the Site.
1. Purpose of the Calculator
The AC tonnage calculator provided on this Site is an educational and estimation tool. It uses simplified HVAC load calculation formulas inspired by ASHRAE standards and the ACCA Manual J methodology to provide approximate AC sizing recommendations for residential rooms.
2. Disclaimer — Not Professional HVAC Advice
⚠️ Important: The results provided by our calculator are estimates only and should not be treated as professional HVAC engineering advice. The calculator does not account for all variables considered in a complete Manual J load calculation. Always consult a licensed HVAC professional before purchasing or installing an air conditioning system, especially for whole-home systems, commercial spaces, or critical environments.
3. Accuracy & Limitations
While we strive for accuracy, our calculator provides generalized estimates for standard residential rooms. Results may be less accurate for:
- Rooms with unusual window configurations or construction
- Buildings with complex ductwork or multi-zone systems
- Extreme climate conditions not well-represented in our dataset
- Commercial, industrial, or specialized environments
4. No Warranty
The Site and its tools are provided “as is” and “as available” without warranties of any kind, either express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. We do not guarantee the accuracy, completeness, or usefulness of any information provided.
5. Limitation of Liability
In no event shall Tonnage Calculator AC, its creators, or contributors be liable for any direct, indirect, incidental, consequential, or punitive damages arising from your use of, or inability to use, the Site or its tools. This includes, without limitation, damages from incorrect AC sizing, energy costs, equipment purchases, or installation decisions based on our calculator's output.
6. Intellectual Property
All content on this Site — including text, graphics, logos, calculator logic, and design — is the property of Tonnage Calculator AC and is protected by applicable copyright and intellectual property laws. You may not reproduce, distribute, or create derivative works without our written permission.
7. Use Restrictions
You agree not to:
- Use the Site for any unlawful purpose
- Attempt to interfere with the proper functioning of the Site
- Scrape, crawl, or harvest content from the Site in an automated manner beyond normal search engine indexing
- Misrepresent our calculator results as professional HVAC engineering assessments
8. External Links
The Site may contain links to third-party websites. We are not responsible for the content, privacy practices, or accuracy of any external sites. Inclusion of a link does not imply endorsement.
9. Changes to These Terms
We reserve the right to update these Terms of Use at any time. Changes will be posted on this page with an updated effective date. Continued use of the Site after changes constitutes acceptance of the revised terms.
10. Contact Us
If you have questions about these Terms of Use, please contact us at [email protected] or visit our Contact page.