Pool Heating on Longboat Key, FL
Pool heaters for a barrier-island town split between two counties, where salt air, flood elevation and the Town's own building department shape the install.
On Longboat Key, a heat pump with a titanium heat exchanger is the right primary heater for a pool that gets regular use, set out of direct salt spray and on a pad that sits high enough. Gas is the tool for a spa or for a pool heated only for visits, and solar works where the roof has clear southern sun. Corrosion and flood elevation are the two things that decide whether the equipment lasts.
The Town of Longboat Key covers the whole barrier island, with the north end in Manatee County and the south end in Sarasota County. By the Town's own 2021 figures, about 63 percent of parcels and 65 percent of residents are on the Sarasota side, which is why this page sits under Sarasota County. Wherever you are on the key, building permits come from the Town's Building Division, which enforces FEMA flood standards.
Our nearest published heat pump installs are on other barrier islands: a GulfStream HE150-RA on Siesta Key and another on Treasure Island in Pinellas County. Both were planned around the same salt air you live with.
Best heating choices for pools in Longboat Key
Choose for how you use the pool, then specify for salt and height. On the key, materials and placement matter as much as BTUs.
Electric heat pump with a titanium heat exchanger
The pool is used most weeks in the cooler months and you want it held at a set temperature. Choose titanium and a cabinet that can't rust, and site the unit on the side of the house away from the prevailing Gulf wind.
Gas heater for a spa or for visits
You have a spa you want hot fast, or the home is used part of the year and the pool is heated for stays. Specify a cupro-nickel exchanger, and check whether natural gas reaches your street or the job needs a propane tank.
Solar pool heating
Your roof has a plane facing south or close to it with little shade. Collectors on the roof stay well clear of ground-level water, and if your home is governed by an HOA or condominium association, Florida law protects rooftop solar collectors, within limits on placement.
Heat pump for the pool, gas for the spa
You want a low running cost on the pool and quick heat in the spa. The heat pump holds the pool; the gas heater handles the spa when you want it.
What's different about heating a pool in Longboat Key
Work below Base Flood Elevation
The Town's Building Division implements FEMA standards, and its own FAQ notes that even minor work can need a tracking permit when it is below Base Flood Elevation as FEMA determines it. Pool equipment pads usually sit at ground level, so on Longboat Key the elevation question comes up early. Check your property on FEMA's Flood Map Service Center and on the Town's flood and elevation certificate map before planning a new pad.
Storm surge and equipment height
During Hurricane Milton in 2024, a U.S. Geological Survey sensor on Longboat Key measured 5.04 feet above mean higher high water, and the National Hurricane Center estimated 4 to 6 feet of inundation from Longboat Key to Venice. Pumps, control boards, heater cabinets and disconnects don't survive being submerged. FEMA's guidance is to raise outdoor equipment as high as practical, preferring a platform attached to the house over one on posts, while keeping the clearances the manufacturer requires.
Salt spray and siting
Hayward's heat pump manual says an oceanfront unit should be placed out of direct spray of sand and salt, and suggests a physical barrier outside the minimum clearances between the unit and the prevailing beachfront wind. It also warns against sprinkler heads close enough for wind to carry mist onto the cabinet. On a Gulf-side lot, the landward side of the house, behind a wall, is usually the better spot.
Gulf-front construction rules
Construction or excavation seaward of the state's Coastal Construction Control Line generally needs authorization from the Florida Department of Environmental Protection under section 161.053 of the Florida Statutes, on top of the Town permit. If a new pad or equipment platform would go on the beach side of a Gulf-front house, check DEP's map first.
Propane on an island lot
If there's no natural gas main at your street, a gas heater means propane. Propane is heavier than air and pools in enclosed areas without enough ventilation, which is why Jandy's heater manual says propane heaters shouldn't go in enclosed areas such as pits, and should sit a safe distance from the tank and filling equipment. On a small lot with the equipment tucked behind a wall, plan the heater and tank locations together.
What Longboat Key homeowners usually ask us for
- Get the equipment above likely flood levels without losing service access
- Replace a heater that corroded early with one built for salt air
- Have the pool and spa warm when the family arrives
- Keep running costs down on a pool heated through the winter
Recent projects in and near Longboat Key
Real Modern Pool Heating jobs. Each card names the town the job was actually in.
Questions Longboat Key homeowners ask
Our services in Longboat Key
What Gulf Coast homeowners say
A perfect 5.0-star rating on both review profiles, from 460+ on Angi and 15 on Google.
“Henry was professional, prompt and a definite expert in his field. He showed patience and explained the process clearly to us. Plus his price point was affordable. We highly recommend Henry.”
“I can't say enough about Henry. He was fantastic. He was so thorough and professional and took the time to explain everything. His workmanship is exceptional and exceeded my expectations. I will use him going forward for all of my pool needs.”
“After multiple attempts, and money, to figure out why our pool lights weren't working, Henry was the only servicer who correctly diagnosed the problem and addressed the issues. We did ultimately replace the fixtures and Henry provided the most competitive, and upfront, estimate as to the charge for parts and labor. He completed the repair, cleaned up any debris and dirt, and, unlike our experience with other companies, made certain everything was working properly. Would highly recommend.”
Longboat Key pool heating questions
Do you install and service pool heaters on Longboat Key?
Yes, on both the Manatee and Sarasota ends of the key. Longboat Key is within the area we cover across Sarasota, Manatee, Charlotte & Pinellas County, and that includes new installs, heater swaps and repairs on heat pumps, solar and gas heaters, whoever installed the original equipment. Permits on the key go through the Town of Longboat Key.
Which county is Longboat Key in?
Both. The north end is in Manatee County and the south end in Sarasota County, with about 63 percent of parcels on the Sarasota side by the Town's 2021 count. For a pool heater it matters less than you'd think, because the Town's own Building Division handles permits across the whole key.
Does my pool equipment need to be elevated?
That depends on your flood zone and the work being done. The Town enforces FEMA standards and notes that work below Base Flood Elevation can need a tracking permit. Even where it isn't required, raising equipment is worth considering on the key, since FEMA recommends elevating outdoor equipment as high as practical. We can look at your pad and tell you what's realistic.
Can I heat the pool before we arrive for the season?
Yes, with some planning. Heat pumps warm a swimming pool gradually over many hours. Actual heating speed depends on pool volume, heater output, starting water temperature, outdoor air temperature, humidity, wind conditions and whether the pool is covered. A gas heater gets there faster, which is why gas can make sense on a home that's heated mainly for visits.
What's the best pool heater for a Longboat Key home?
For a pool used through the cooler months, a heat pump with a titanium exchanger, sited out of the Gulf wind and spray. Add gas for a spa or for quick heat before visits, and consider solar if the roof faces south. On the key, the specification and placement matter as much as the brand.
Sources
- Town of Longboat Key — Two Counties Challenges presentation, March 2021, copy hosted by The Anna Maria Island Sun (63% of parcels and 65% of 2020 population in the Sarasota County portion)
- Wikipedia — Longboat Key, Florida (town coterminous with the barrier island; Manatee County in the north, Sarasota County in the south)
- Town of Longboat Key — Building Division (implements FEMA standards; tracking permits for work below Base Flood Elevation)
- National Hurricane Center — Tropical Cyclone Report, Hurricane Milton (AL142024), 31 March 2025 (landfall on Siesta Key; storm surge inundation by stretch of coast)
- FEMA — Flood Protection and Elevation of Building Utilities, Iowa Floods of 2016 Recovery Advisory RA4, April 2017 (outdoor equipment can go on a platform attached to the house; for condensing units a cantilevered platform is preferred over posts; elevate mechanical equipment as high as practical; keep manufacturer clearances)
- FEMA Flood Map Service Center — official flood maps, searchable by address
- Hayward — HeatPro heat pump Installation and Operation Manual 51300122601 Rev C (oceanfront siting, sprinkler spray, equipment pad, condensation, wind-load anchoring, clearances)
- The 2026 Florida Statutes, s. 161.053 — Coastal construction and excavation (construction or excavation seaward of a coastal construction control line requires Department of Environmental Protection authorization)
- Florida Department of Environmental Protection — Coastal Construction Control Line program (with links to locate the CCCL on a map)
- The 2026 Florida Statutes, s. 163.04 — Energy devices based on renewable resources (deed restrictions and associations may not prohibit solar collectors; roof placement limited to south or within 45 degrees of due south, and only if it does not impair operation)
- Florida Public Service Commission — State of Florida Natural Gas Utilities map (service areas are approximations; contact individual utilities)
- Jandy — JXi Installation & Operation Manual H0574300, section 4.3 Special Precautions for LP Gas (propane is heavier than air; not recommended in enclosed areas such as pits)
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