What Is the Best Pool Heat Pump for a Florida Pool?

Florida is good heat pump country. Our air is warm and humid most of the year, and a heat pump pulls its heat out of that air. The Department of Energy says heat pump pool heaters work efficiently as long as the outside temperature stays above the 45°F to 50°F range, which describes most hours of a Sarasota winter. So the question is rarely whether a heat pump will work here. It is which one suits your pool, your equipment pad and your electrical service.

We weigh six things, roughly in this order. The water-side heat exchanger, because salt pools and salt air are normal here. Heating capacity at 50°F air, because that is the number you live with during a cold front. The electrical circuit the unit needs. The warranty terms and who performs warranty work locally. How the unit is controlled, including whether it can join your automation. And where it sits on price relative to the rest of the field, which this site shows as a relative tier rather than a dollar figure.

Two things do not separate the serious contenders. Titanium is one: every heat pump in our heater comparison uses it. The 80/80/80 headline capacity is the other: most of the 140,000 BTU-class units land within a few thousand BTU/hr of each other at that test point, so the real differences are in the columns most shoppers skip.

Every figure below comes from the manufacturer's own documents at the test conditions the manufacturer states. Capacity and COP are at 80°F air, 80°F water and 80% relative humidity unless the row says otherwise. Where a manufacturer does not publish a figure, the table says so rather than filling the gap.

Read the 50°F column before the 80°F one. Across the brands that publish it, capacity at 50°F air runs roughly a third below the headline, and efficiency falls to a COP of about 4.0. Our pool heat pump sizing guide explains why that column, not the headline, should set the size. GulfStream is the odd one out: Pentair states every HE model meets or exceeds a COP of 4.0 at the 50°F test point but publishes no capacity figure there, so we cannot print one.

The Moov Inverter line is the only modulating inverter in the table. Moov publishes an average COP across the compressor's speed range rather than a figure at the industry test point, so its efficiency claim cannot be set beside the others like for like.

Heat pumps are sized on the pool's surface area and the temperature rise you are asking for, not on gallons, and the manufacturers' models fall into a few clear classes. The 110,000 to 121,000 BTU/hr class covers the GulfStream HE110-RA and HE125-RA, the AquaCal SQ140R, Built Right's BR115XW at 117,000 BTU/hr and Thermeau's TH125. These suit screened, average-sized pools, and they ask the least of the electrical panel. The HE110-RA, for example, needs a 40 amp maximum breaker, the smallest in the GulfStream line.

The 130,000 to 140,000 BTU/hr class is where most large, unscreened and waterfront pools end up: GulfStream's HE150-RA and HE150-TA, Hayward's HP21405T and HP31405T, the Built Right BR135XW, AquaCal's SQ200R, Raypak's Crosswind V, Pentair's UltraTemp 140 H/C and Jandy's JRT3000R. 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. Extra capacity on a heat pump mostly buys recovery time after a cold front; it does not make the water warmer day to day. Above that, Jandy's 160,000 BTU/hr JRT4001R is a single-phase unit that can stand in where a large pool would otherwise be quoted two heat pumps.

Our own jobs show both ends. In Punta Gorda we set a GulfStream HE110-RA, the entry model in the HE line, beside the house; in Dunedin, Tampa, Siesta Key and Treasure Island we installed the HE150-RA, the largest heat-only unit in the line. The 100K versus 140K article walks through how we choose between the two classes, and the sizing guide has the formula.

This is where these heat pumps differ most, and where the fine print matters most. The table states each manufacturer's published terms and the conditions that change them. We have not ranked them: the right one depends on which component worries you and who will do the work when something fails.

Two habits protect you whichever brand you choose. Buy through a channel the manufacturer recognizes, because nearly every one of these warranties shrinks to one year of parts, or disappears, for internet purchases and unauthorized sellers. And ask for the warranty document by name or revision for your exact model number, because three of the brands below (GulfStream, AquaCal and Built Right) have conflicting documents in circulation.

Controls are where the field splits into camps. GulfStream gives you a clear LCD that reports faults in plain language, but its manual states the heat pump cannot be connected to automation over RS-485, and Pentair publishes no app or Wi-Fi for it: automation is dry contact only. Hayward's HeatPro takes a two-wire relay (terminal J7, plus J28 for cooling on the HP31405T), which is how it joins a Hayward Omni system. Pentair's UltraTemp documents an RS-485 connection to IntelliTouch and EasyTouch and uses dry contacts for everything else. Jandy's VersaTemp joins a Jandy AquaLink RS system over RS-485.

If you want the heater itself on your phone without an automation panel, the list narrows quickly: AquaCal builds PoolSync Wi-Fi into the SuperQuiet, Raypak builds Raymote Wi-Fi into the Crosswind V, and Moov publishes Wi-Fi setup and an app for its Inverter line. Built Right and Thermeau publish no app. The Wi-Fi and automation article goes model by model, including what each kind of connection can and cannot do.

One of our Siesta Key installs shows the most common Florida situation: a heat-only GulfStream HE150-RA on a pad that also carries a Pentair automation panel. The HE150-RA connects to automation through dry-contact remote thermostat terminals, not a Pentair data connection, so if the automation brand matters to you, decide that before you choose the heat pump.

Most of the lines above offer a reverse-cycle model that can chill the pool as well as heat it: GulfStream's TA models, Hayward's HP31405T Heat+Chill, Pentair's UltraTemp H/C, Jandy's VersaTemp (chilling is standard on every JRT model), Raypak's EHC models, AquaCal's ICEBREAKER units, Built Right's BR135XW H/C and most of Thermeau's Prestige line. Within a line, the heat-and-cool unit usually gives up a little heating capacity: GulfStream rates the HE150-RA at 138,000 BTU/hr and the HE150-TA at 135,000 at the same test point.

Very few of them publish a cooling capacity. Pentair does, at 71,000 BTU/hr and COP 4.1 for the UltraTemp 140 H/C; Hayward and Jandy publish 40°F chilling claims (Jandy's for a cold plunge of about 800 gallons or less); most others publish nothing. Rather than repeat it here, our heat-and-cool guide covers which pools actually need cooling, what the reversing valve costs you, and when we talk people out of it. The short version: if you mainly want winter heat, buy the heat-only model.

Three of the brands in our heater comparison record Florida manufacturing. GulfStream units are built by G&F Manufacturing in North Fort Myers, according to the installation manual Pentair hosts, although the brand is now owned and supported by Pentair. AquaCal builds in St. Petersburg, and its brochure says it has produced heat pumps since 1981. Built Right builds in Punta Gorda and says most of its Florida service work is done by its own factory technicians. Thermeau keeps a U.S. office in Apopka but describes a Canadian-based factory.

Where a heat pump is built matters less than who fixes it, but on the Gulf Coast the two often go together. We compare the three Florida builders on warranty, controls and service in a separate article.

A good heat pump installed badly performs like a bad one. The manufacturers want open air around the unit: GulfStream asks for 12 inches on each side and four feet above, and warns that sheds, garages and low overhangs recirculate cold discharge air and can push the unit into defrost. The manuals we have read publish a water flow window, which a variable-speed pump has to be programmed to sit inside while the heater runs, and they put the salt cell or chlorinator downstream of the heater.

The pad and the panel come next. On a Tampa job there was no pad where the heat pump needed to go, so the crew built a level base from concrete block in a gravel side yard first. On Treasure Island the pad sits up out of a rock bed so rain and irrigation drain away from the base. And on older Sarasota and Bradenton homes the electrical panel is often what decides between a 40 amp and a 50 amp unit. Our electrical, bypass and placement article covers all of this in detail.