BTU requirements for FL pools, NFPA 54 gas pipe sizing, heat pump vs gas comparison, FL pool permit guide
Calculate the right heater size for your Florida pool or spa
Heats pool quickly (2β4 hrs). Works in any FL temperature, including cold snaps. Efficiency: 82β95% (condensing). Best for infrequent heating, spas, or quick warmup. NG: ~$0.80β1.20/therm. LP: ~$2.50β3.50/gallon. Typical monthly FL cost: $80β$250 (NG) or $200β$600 (LP).
FL's warm climate is ideal for heat pumps. COP of 4β6 means $1 of electricity = $4β6 of heat. Best for maintaining temperature daily. Works well above 55Β°F β FL rarely dips below that. Typical monthly FL cost: $30β$100. Slower: 8β24 hrs for full heatup from cold.
Heat pump as primary (low-cost operation), gas as backup for cold FL nights or rapid heatup for parties. Most cost-effective long-term for FL homeowners who use pool year-round. Payback vs gas-only: 3β5 years.
Per NFPA 54 Table 402.4 β size the gas line from meter to pool heater
Natural Gas, low pressure (7" WC), Schedule 40 black iron pipe
| Pipe Size | 50 ft run | 75 ft run | 100 ft run |
|---|---|---|---|
| Β½" | 72,000 | 59,000 | 50,000 |
| ΒΎ" | 151,000 | 124,000 | 107,000 |
| 1" | 285,000 | 234,000 | 202,000 |
| 1ΒΌ" | 542,000 | 444,000 | 384,000 |
| 1Β½" | 822,000 | 673,000 | 583,000 |
LP gas: multiply BTU capacity by ~0.40 (LP has higher BTU/cubic foot but lower flow rate at same pressure drop)
Licensed CPC with gas certification β FL pool heater installation
Built for Florida homes - accounting for Florida's hurricane-season demands, coastal corrosion, and county permitting.
Serving Palm Beach County & Florida - get matched with a licensed plumber
On this page, Florida pool heater gas estimates run about $4,500-$8,000, depending on home size, materials, and project scope. Use the calculator above for a Florida-specific estimate.
Pricing depends on the size and layout of your home, the pipe materials and fixtures you choose, your Florida region and local labor rates, and permit fees. Work that is more complex or harder to access generally costs more.
In Florida, minor maintenance may be DIY, but anything beyond that generally calls for a licensed plumber, and many jobs require a permit and inspection. When a permit, gas work, or your main water or drain lines are involved, hire a Florida-licensed plumber.
It depends on the cause and your specific policy. Sudden, accidental damage is more often covered than gradual wear-and-tear or maintenance - confirm the details with your insurer.
Timelines depend on scope - many routine jobs take a few hours to a day, while larger projects run longer. Your licensed plumber can confirm after assessing your home.
Planning estimate, not a quote — confirm with a licensed Florida plumber. Confidence is qualitative: ranges reflect this page’s Florida assumptions, not a guaranteed price.
Estimates on this page are Florida-specific and reflect Pool Heater Gas for typical Florida homes.
From this page: On this page, Florida pool heater gas estimates run about $4,500-$8,000, depending on home size, materials, and project scope. Use the calculator above for a Florida-specific estimate.
Your actual cost depends on your home's condition, layout, and local labor and permit rates.
From this page: Pricing depends on the size and layout of your home, the pipe materials and fixtures you choose, your Florida region and local labor rates, and permit fees. Work that is more complex or harder to access generally costs more.
Generally raises cost: harder access, older homes, added permits and inspections, premium fixtures or materials, and emergency or after-hours work.
Generally lowers cost: easy access, bundling several items in one visit, standard fixtures, and off-peak scheduling.
Curated Florida tools and resources related to this page.
Last reviewed: July 1, 2026 (US Eastern)
Reviewed by the FL Plumbing Tools editorial team.
Sources: Florida plumbing cost research and Florida Building Code / local authority-having-jurisdiction (AHJ) permit references.
Florida reference: Estimates and guidance reflect Florida labor rates, permitting, hard water, humidity, and coastal conditions.
Updates: Reviewed periodically and updated as Florida codes, permit fees, and market rates change.