Effective September 12, 2026

Terms of use

Use this site as general educational material, not as approval for an installation or a promise of equipment performance.

No professional advice

Heating and pool equipment can involve electricity, gas, combustion, water pressure, structural loads, chemicals, permits, and local codes. Follow current manuals and use qualified professionals where required.

Estimates and availability

Calculator outputs are simplified estimates based on the values you enter. Weather, heat loss, equipment condition, control cycles, and installation details can materially change actual results. Product listings, specifications, prices, and availability may change without notice.

Acceptable use

You may use the site for personal research. Do not interfere with its operation, misrepresent its content, or reproduce substantial portions without permission.

Limitation

To the extent permitted by law, the site is provided without warranties and its publishers are not liable for decisions made without verifying official documentation and site-specific conditions.