• Thermopompe de piscine Stratos de TTI FAB, boîtier noir à ventilateur latéral
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STRATOS-50

TTI FAB

Stratos-50 Heat Pump – 50,000 BTU

Stratos-50 Heat Pump – 50,000 BTU

$1,599.00 CAD
$1,599.00 CAD
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A 50,000 BTU/h pool heat pump from TTI FAB, a manufacturer based in Longueuil, for heating the water of an above-ground or in-ground pool. It draws heat from the outdoor air and transfers it to the water through a titanium heat exchanger, which is suitable for saltwater pools when the chlorinator is installed after the heat pump. It uses a fixed-speed compressor on a 240 V power supply protected by a 20 A breaker, and is adjusted with a digital control that has a built-in timer. It is the smallest Stratos model offered by Aqua Fibre Innovation.

50,000 BTURated capacity
240 V / 20 APower / breaker
TitaniumHeat exchanger, salt compatible
6 yearsTTI warranty in Quebec

Highlights

50,000 BTU/h ratedAccording to the TTI spec sheet, 51,900 BTU/h with a COP of 6.1 with air and water at 26.7 °C and 80% humidity, and still 33,500 BTU/h with air at 10 °C and 63% humidity (water at 26.7 °C).
Titanium heat exchangerSuitable for chlorine and saltwater pools, provided the outlet of the chlorinator or salt chlorine generator is placed after the heat pump, as TTI requires.
Fixed-speed compressorA single power level: the heat pump heats at full capacity until it reaches the set temperature, then shuts off. It draws 10 A when running, on a 240 V, 20 A circuit.
Digital control and timerTemperature setting, clock, on/off timer, display in °C or °F. No external timer to add.
Built-in protectionsAutomatic defrost, detection of water pressure that is too high or too low, automatic shutdown when the weather is too cold, and a delay of 3 minutes before the compressor starts.
Automatic restartAfter a power outage, it restarts on its own: no need to go out and turn it back on.
Compatible with modern pumpsAccording to TTI, it is designed to run at reduced flow with variable-speed or two-speed pumps, provided the flow stays at or above 57 L/min (15 US gal/min).
Quebec manufacturerTTI FAB, of Longueuil, states that it designs and manufactures the Stratos at its plant in Quebec. Warranty claims are submitted directly to TTI.

Description

A pool heat pump does not heat the water with an electric element: it draws heat from the outdoor air. The fan moves air over the evaporator coil, the compressor concentrates that heat in the refrigerant (R410A), then the titanium heat exchanger transfers it to the pool water. It therefore delivers more energy as heat than it consumes in electricity, which is what the coefficient of performance (COP) measures. According to the TTI spec sheet, the Stratos-50 reaches a COP of 6.1 with air at 26.7 °C and 80% humidity, and 4.0 with air at 10 °C and 63% humidity (water at 26.7 °C in both cases).

The Stratos-50 is a simple unit: a fixed-speed compressor, a single-phase 240 V power supply and a digital panel with clock and timer. It is designed to operate with air between 7 and 35 °C; below 7 °C, it shuts off on its own and displays code P7, which is not a malfunction. A solar cover or insulating cover, which TTI recommends, helps keep the heat produced in the pool.

The pool sizes indicated by TTI are listed in the frequently asked questions below. For a larger pool, a property exposed to wind or a longer swimming season, the Stratos-65 (65,000 BTU) and the Stratos-80 (80,000 BTU) offer more power. If in doubt, call us before ordering.

Technical specifications

ManufacturerTTI FAB, Longueuil (Quebec)
ModelStratos 50
TypeAir-to-water pool heat pump, heating only
CompressorFixed speed (on/off), single power level
Rated capacity50,000 BTU/h (14.7 kW)
Air 26.7 °C, 80% humidity51,900 BTU/h (15.2 kW), COP 6.1
Air 26.7 °C, 63% humidity47,500 BTU/h (13.9 kW), COP 5.7
Air 10 °C, 63% humidity33,500 BTU/h (9.8 kW), COP 4.0
Power supply240 V, single-phase, 60 Hz
Breaker20 A
Running amperage10 A
RefrigerantR410A
Heat exchangerTitanium
Water connections1 ½ in.
Water flow57 to 170 L/min (15 to 45 US gal/min)
Water pressure12 to 15 PSI in normal operation, 2 bar (30 PSI) maximum
Operating rangeAir from 7 to 35 °C (45 to 95 °F); automatic shutdown below 7 °C
DefrostAutomatic
ControlDigital panel: temperature, clock, on/off timer, °C or °F
ProtectionsHigh or low water pressure detection, automatic shutdown when the weather is too cold, delay of 3 minutes when the compressor starts
After a power outageAutomatic restart
Dimensions (L × H × W)Approx. 91 × 56 × 28 cm (36 × 22 × 11 in.)
Net weight52 kg (115 lb)
UseIn-ground or above-ground pools only
WarrantyIn Quebec: 6 years parts and labour from delivery, for a new heat pump purchased on or after October 5, 2026. Elsewhere in Canada: 5 years on parts, 3 years on the electronic circuit and digital control, 3 years labour.

Values from the TTI spec sheet, for water at 26.7 °C (80 °F). According to TTI, BTU and COP are calculated to the AHRI 1160 test standard, and BTU with a test flow of 60 US gal/min. When installing, stay within the flow range shown in the table.

Installation

ElectricalConnection by a master electrician, in accordance with the applicable codes: dedicated 240 V circuit, 20 A breaker installed near the unit in an accessible location, grounding mandatory. The exact requirements are shown on the nameplate.
LocationOutdoors only, never in a shed, garage or basement. On a flat, firm and level surface, ideally a concrete slab. Not under a roof (snow, water running off without a gutter) or near an automatic sprinkler, and out of direct sunlight on the control panel.
Clearances60 cm (2 ft) in front of the evaporator coil; 120 cm (4 ft) in front of the other sides, the fan and the service panel.
CondensationThe unit produces condensation water: make sure there is good drainage around it.
Plumbing1 ½ in. connections. A set of bypass valves is mandatory to isolate the heat pump and adjust the flow. With a pump of 2 HP or more, TTI requires an adjustable automatic bypass valve.
Pipe length10 m (about 33 ft) maximum between the pool and the unit. TTI recommends insulating these pipes to maximize water heating.
Flow and pressureBetween 57 and 170 L/min (15 to 45 US gal/min), at 30 PSI maximum. Outside these values, damage is not covered by the warranty.
Chlorinator and salt chlorine generatorThe outlet of any salt chlorinator or chlorine or bromine feeder must be located after the heat pump. Otherwise, the warranty does not apply.
Start-upStart the filtration pump before the heat pump. The fan runs for 3 minutes before the compressor starts.

TTI requires the unit to be installed and serviced by a professional technician. Incorrect installation is not covered by the warranty, and a repair made by a technician not authorized by TTI voids it. Remember to register your warranty online on the TTI website.

Winterizing and maintenance

In Quebec, the heat pump must be winterized when the pool is closed: water left in the heat exchanger can freeze and damage it, and freezing is not covered by the warranty. TTI describes the following steps:

1. StopTurn off the heat pump.
2. Cut the powerSwitch off the breaker and close the valves.
3. Disconnect the waterUnscrew the water inlet and outlet connections.
4. DrainRinse the heat exchanger with tap water, then blow out the remaining water with compressed air or a wet/dry vacuum.
5. ProtectIf the unit stays outside all winter, cover it with a waterproof protective cover.

In spring: check and adjust the water quality, keep the breaker off while you reinstall the unit level and reconnect the plumbing, clean the filter and check the water return, then restore power. Always start the filtration before the heat pump.

During the season, keep the coil free of leaves and paper. Clean the unit with a mild household cleaner and rinse it with a garden hose at low pressure, never with a solvent or gasoline.

Frequently asked questions

Is the Stratos-50 enough for my pool?As a guide, TTI intends it for 15 and 18 ft above-ground pools and for 10 × 20 ft and 12 × 24 ft in-ground pools. The right choice also depends on the desired temperature, wind exposure, the length of season you want and whether you use a solar cover. Give us this information and we will confirm the model.
Does it work with a saltwater pool?Yes, its heat exchanger is titanium. However, TTI requires the outlet of the salt chlorinator, or of any chlorine or bromine feeder, to be located after the heat pump; otherwise, the warranty does not apply. Also keep the water well balanced; in fact, when restarting in spring, TTI asks you to check and adjust the water quality.
Is it noisy?While it is heating, you can hear its fan and compressor, as with any heat pump; it shuts off once the temperature is reached. TTI's documents do not give a consistent value for this model, so we would rather not quote a figure. AFI tip: in addition to the required clearances, preferably install it away from bedroom windows and the neighbour's property line.
How much does it cost to run?It depends on the desired temperature, the weather, the size of the pool and above all whether you use a cover. The COP gives an idea of efficiency: according to the TTI spec sheet, with air at 26.7 °C and 80% humidity, it delivers about 6 times more energy as heat than it consumes in electricity (COP 6.1), and about 4 times more with air at 10 °C and 63% humidity (COP 4.0). A solar cover or insulating cover, which TTI recommends, limits heat loss and therefore operating hours.
Can it heat in spring and fall?Yes, as long as the air is above 7 °C: it is designed to operate between 7 and 35 °C. Its output drops as the air cools: according to the TTI spec sheet, 33,500 BTU/h with air at 10 °C, compared with 47,500 BTU/h at 26.7 °C, at the same 63% humidity. Below 7 °C, it shuts off on its own and displays code P7: this is not a malfunction.
Does it work with my variable-speed pump?Yes. According to TTI, it is designed to run at reduced flow with modern pumps. However, the flow passing through it must stay between 57 and 170 L/min (15 to 45 US gal/min): outside this range, damage is not covered by the warranty. While heating, choose a pump speed that meets this minimum flow, then adjust the flow with the bypass valves.
Stratos-50, Stratos-65 or Stratos-80?The Stratos-50 is the smallest of the three. The Stratos-65 and Stratos-80 are better suited to a larger pool, a property exposed to wind or a longer season. Their actual output, amperage and breaker differ from those of the 50: see their product page or ask us for advice before choosing.

Manual and video

How to prepare a pool heat pump for winter, by TTI FAB (2 min 39 s). The demonstration covers TTI heat pumps in general.

TTI Stratos 2027 spec sheet (PDF, in French) Manuals and warranties on the TTI website

For water flow, rely on the TTI warranty range rather than on the table in this spec sheet: 57 to 170 L/min (15 to 45 US gal/min). On TTI's Documentation page, the Stratos manuals are sorted by edition (2026, 2020, 2018, 2017 and an older edition). To find out which one matches your unit, email or call us with the information on its nameplate.

Not sure 50,000 BTU will be enough? Send us your pool's dimensions, its type (above-ground or in-ground), whether you use a solar cover and the space available in your electrical panel: we will confirm whether the Stratos-50 is right for you or whether you should go with the Stratos-65 or Stratos-80. Email us (418) 871-0658
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