Terms of Use

By using ClimateCalcs.com you agree to these terms.

1. Service

ClimateCalcs provides free, informational home HVAC calculators and reference content. Use requires no account.

2. Estimates only — not professional advice

All results are deterministic estimates computed from the inputs you provide and standard constants. They are for planning and education and are not professional HVAC, engineering or safety advice, not a Manual J / Manual S load calculation, not a bid, and not a loan offer. Sizing figures are a starting estimate: a professional load calculation is required before buying equipment, and gas, electrical and refrigerant work must be done by licensed professionals — install CO alarms.

3. No warranty

The site is provided "as is" without warranties of any kind. While the formulas are tested against known values, we do not guarantee that any result fits your specific situation. You are responsible for verifying figures before relying on them.

4. Limitation of liability

To the extent permitted by law, Redbit S.r.l.s. is not liable for any damage arising from use of the site or reliance on its results.

5. Intellectual property

Content and design are protected. You may use the calculators for personal and professional purposes; you may not copy the site's content wholesale.

6. Provider

Redbit S.r.l.s., Viale della Grande Muraglia 494, 00144 Rome, Italy (VAT IT15237911001). Contact: [email protected].