Pool heater sizing calculator

Find the approximate heater output (BTU) needed to comfortably heat your pool based on its size and how warm you want the water. Use this before comparing heater installation quotes.

Recommended heater output

105,000 - 120,000 BTU

Match this BTU output to a heater model spec sheet; larger or shaded pools may need more capacity.

Compare actual quotes for this project

This is a sizing estimate only; a contractor should confirm final heater size based on wind exposure, cover use and insulation.

Compare actual quotes for this project

Your calculator results and project details are included with your inquiry, so contractors can quote your actual work. Just provide your location, timeline, and contact information.

What type of work do you need?

Where is your property?

When do you need to start?

How many quotes would you like?

Several quotes Just one

Your name

Phone

Tell us more about the job?

Sending this enquiry means you agree we can pass it to providers relevant to your request.

Enquiries submitted through our forms may be shared with partner providers who can perform the work, and we may receive a referral fee. Our rankings and scores are based only on our published method and are not influenced by referral fees.

Get quotes from top-rated swimming pool contractors

Ranked by our published rubric from recent Google reviews, weighted by relevance to this service (the same order as the category page).

Edgewater Pools & Spas | Main Office
4.9(399) 93
Get a quote
Caribbean Pools, Inc.
4.9(313) 92
Get a quote
Pool Troopers
4.8(475) 91
Get a quote
Tenacity Pools
4.9(183) 88
Get a quote
Ocean Blue Swimming Pool Services
4.8(272) 88
Get a quote

More tools

New pool construction cost estimator Pool remodeling cost estimator Pool cleaning & maintenance cost calculator