Pool heater installation costs a national average of $3,100, with a normal range of $1,864 to $4,351, per HomeAdvisor’s data.1 Other published averages differ: Fixr puts the national average at $3,500 with an average range of $2,500 to $5,000, and HomeGuide at $3,300 with an average range of $1,600 to $5,200 — published figures that differ and are not reconciled by the sources.3,4 Figures below are the latest published national figures* from each source.
*National figures, not local quotes. HomeAdvisor was updated June 19, 2026; Angi was updated September 15, 2026; HomeGuide was written January 2, 2026; Fixr was updated January 31, 2025. Your price depends on heater type, pool size, utility hookups, and local labor.
$3,100
national average (HomeAdvisor)
$1,864 – $4,351
normal range (HomeAdvisor)
$3,500
national average (Fixr)
$3,300
national average (HomeGuide)
What sources say
| Source | Figure | Scope |
|---|---|---|
| HomeAdvisor | $3,100 average; normal range $1,864 – $4,351; extremes $300 – $6,000 | Pool heater installation guide (updated June 19, 2026) |
| Angi | $3,100 national average; $1,864 – $4,351 typical, from 1,019 verified projects | Pool heater installation guide (2026 data, updated September 15, 2026) |
| Fixr | $3,500 national average; $2,500 – $5,000 average range; $1,000 low, $9,000 high | Pool heater cost guide (updated January 31, 2025) |
| HomeGuide | $3,300 national average; $1,600 – $5,200 average range; $1,000 minimum, $11,000 maximum | Pool heater cost guide (written January 2, 2026) |
Angi and HomeAdvisor are corporate siblings: Angi’s headline average and range, heater-type table, pool-volume sizing table, permit range, and removal fee match HomeAdvisor’s exactly, and HomeGuide’s $25 to $50 removal fee is another exact match with no attribution — matching figures across pages, which alone don’t establish independent corroboration.1,2,4
Cost by heater type
| Heater type | HomeAdvisor / Angi | Fixr | HomeGuide |
|---|---|---|---|
| Natural gas / propane | $1,500 – $6,000 | $1,500 – $5,500 | $1,500 – $4,500 |
| Electric resistance | $1,000 – $6,000 | $1,000 – $6,000 | $1,200 – $6,000 |
| Heat pump | $2,500 – $7,500 | $2,500 – $6,500 | $2,000 – $6,000 |
| Solar | $2,500 – $9,500 | $2,500 – $7,000 | $2,500 – $6,500 |
The type-table ceilings differ by source — gas tops out at $6,000 (HomeAdvisor/Angi), $5,500 (Fixr), or $4,500 (HomeGuide), and solar at $9,500, $7,000, or $6,500 — and the sources do not reconcile them.1,2,3,4 Unit-only versus labor splits: Angi prices a gas or propane unit at $1,000 to $4,500 plus $500 to $1,500 labor, an electric unit at $500 to $5,000 plus $500 to $1,000, a solar system at $2,000 to $7,500 plus $500 to $2,000, and a heat pump at $2,000 to $6,500 plus $500 to $1,000.2 HomeGuide’s unit-only figures are $1,000 to $3,000 gas, $700 to $5,000 electric, $1,500 to $5,000 heat pump, and $2,000 to $5,000 solar.4 For current retail unit pricing, big-box stores carry the category — for example Home Depot’s in-ground pool heaters section — which is useful for gauging material costs before hiring out the installation and utility work.
Sizing to the pool
Heater capacity is measured in BTUs. HomeAdvisor and Angi publish the same sizing table: 10,000 gallons calls for 40,000 to 60,000 BTUs (gas heater) at $1,000 to $2,500 all-in, scaling to 120,000 to 180,000 BTUs and $4,000 or more at 30,000 gallons.1,2 HomeGuide’s rule of thumb is a minimum of 50,000 BTUs for every 5,000 to 10,000 gallons in mild climates and double that in cold climates, with unit prices running $1,300 to $2,200 for pools up to 300 square feet up to $3,000 to $5,000 for 801 to 1,200 square feet.4 Fixr sizes its price tables by BTU band and surface area instead — for example a 100,000 to 150,000 BTU gas heater covering 290 to 395 square feet installs for $1,500 to $3,000 — a different breakdown the sources do not reconcile with the volume-based table.3
Utility hookups and labor
Angi itemizes utility lines at $500 to $2,000 for gas, $250 to $2,100 for electrical, and $350 to $1,900 for water lines; HomeAdvisor’s page carries the same figures but runs the electrical and water-line numbers together in an apparent typo.1,2 HomeGuide prices the same work differently: a gas line at $15 to $50+ per linear foot including labor, materials, and permits; plumbing connections at $300 to $600; and a dedicated electrical circuit at $250 to $900.4 Labor for a standard installation runs $500 to $1,000 (HomeAdvisor) or $500 to $1,500 (HomeGuide), with solar labor reaching $500 to $2,000; electricians cost $50 to $100 per hour and plumbers $45 to $200 per hour (HomeAdvisor, Angi).1,2,4 Removing an old heater adds $25 to $50 across all three guides.1,2,4
Permits
Permits are not always required, but Angi and HomeGuide state they are mandatory for roof-mounted solar collectors and any project running a new gas line; HomeAdvisor and Angi put permit fees at $100 to $500 depending on location.1,2,4 Requirements and fees vary by jurisdiction, so the installer should confirm what applies during the estimate.2
Monthly operating costs
Angi estimates monthly energy costs at $200 to $400 for natural gas, $200 to $850 for propane, $175 to $600 for electric resistance, $120 to $200 for a heat pump, and $0 to $10 for solar.2 HomeGuide’s figures differ: gas at $200 to $500+ per month and heat pumps at $50 to $150, with a solar circulation pump at $10 to $25 — estimates that overlap but are not reconciled.4
How long heaters last
Lifespan estimates differ by source. HomeAdvisor puts gas and propane models at 7 to 12 years and electric and solar units at up to 30 years.1 Fixr’s figures are lower: electric resistance units last 5 to 10 years, gas systems at least 5 years, heat pumps more than 10 years, and solar 15 to 20 years.3 HomeGuide gives a single figure of 10 to 12 years across types.4 These are differing estimates the sources do not reconcile.
Related guides
Solar Pool Heater Installation Cost
See also: our guide to pool opening costs.
Pool Filter Installation Cost
Pool Heater Repair Cost
Pool Pump Repair Cost: $100 to $700 (2026 Guide)
Pool Installation Cost
Pool Resurfacing Cost
Pool Closing Cost
All cost guides
Sources
1. HomeAdvisor — How Much Does a Pool Heater Cost to Install? (updated June 19, 2026)
2. Angi — How Much Does a Pool Heater Cost? (2026 data, updated September 15, 2026)
3. Fixr — Pool Heater Installation Cost (updated January 31, 2025)
4. HomeGuide — How Much Does a Pool Heater Cost? (written January 2, 2026)