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The best pool heaters in comparison

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Last updated on 12.07.2025

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Intex

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9,9

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Easy to connect up to your pool
Take the chill off your pool
Only suitable for use with round Easy Set or Metal Frame pools
230V Electrical Heater

£ 115.48

£ 125.76

£ 130.00

SunHeater S120U Universal Sun Heater, 2 Feet by 20-Feet

9% off

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9,8

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Additional kits or plumbing may be required.
Raises pool water temperature 6-10 degrees F
Patented web design for maximum exposure to sun's rays

Bestway | Solar-Powered Pool Heating Pad

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9,7

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POOL HEATING PAD Offers an energy-efficient and eco-friendly solution to warm up the water in your above ground pool. Harnessing the power of the sun to heat up your pool water!
EASY TO USE It features two hose outlets one connects to your filter pump, and the other to your pool. Clear and clean water is circulated through the pad, where it absorbs solar heat before returning to the pool, ensuring a gradual and even increase in water temperature.
ENERGY-EFFICIENT features heating and temperature regulation, designed from durable weather resistant materials for long term use!
INCREASES POOL TEMPERATURE Depending on weather conditions, the Solar-Powered Pool Heater Pad can raise pool temperatures by 3-5 C (5-9 F).
COMPATIBLE Designed to be versatile, this heating pad is compatible with cartridge filter pumps with flow rates of 9,462 L (2,500 gal.) and above, as well as sand filter pumps with flow rates of 8,327 L h (2,200 gal.) and above. It includes adapters for both 3.2 cm (1.25 in.) and 3.8 cm (1.5 in.).

Superfish Pond Heater 150 Watt

Superfish

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9,7

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Wipe clean
Model number 260820

£ 34.99

£ 34.99

£ 34.99

£ 34.99

£ 41.39

Recommendation

Focket Swimming Pool Heat Exchanger, MF 135 40KW Stainless Steel Tube Shell Solar Pool Heater Pool Water Heater Heat Exchanger, Cyclic Heating, for Spa Swimming Solar Heating And Cooling

Focket

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9,7

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STAINLESS STEEL MATERIAL The swimming pool heat exchanger is made of high grade anti corrosion stainless steel, anti rust and salt water resistance, Highly conductive and super-thin stainless steel plates make good performance and economy for heating transfer and cooling without electricity consumption and oxygen consumption.
MAXIMUM HEAT EXCHANGE Specially designed built in limiter aims to minimize the pressure loss in the heating system and ensure maximum heat exchange. It is heated by water, and the cold water is turned into hot water by heat energy, which is heated circularly. It is suitable for the simultaneous use of solar panels (shipped without solar panels).
SPACE SAVE Equipped with stainless steel fixed bracket, easy to install and use, small and compact size, light weight, minimum installation space is required.
APPLICATION The heat recovery pool heater is suitable for swimming pools, spas, hot tubs, solar, hydraulic heating, oil cooling, heat recovery, snow melting, etc.
ORDER NOW, WORRY FREE Customer satisfaction is our top priority. We're so confident about our product quality that we can provide a 1 year warranty ! We will give you a professional and detailed reply within 24 hours. Click to buy now!

AQQA Aquarium Heater,800W Submersible Fish Tank Heater,with Over-Temp Protection & Explosion-Proof Quartz Glass,Submersible Aquarium Heater with LED Thermostat Controller,for Fish Tank 300-870L

AQQA

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9,6

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Efficient Heating AQQA Aquarium heater is made of explosion-proof quartz material, offers rapid and efficient heating with superior thermal conductivity. High temperature resistant, shatterproof and explosion-proof,ensuring safety and reliability for your aquarium.
Overheating & Anti-Dry Protection The fish tank heater stops if the water temperature exceeds the set point by 1 C. If it rises rapidly by 3 C, the display will flash the current temperature and stops heating. If the heating rod is more than 1 inch out of the water, it shows an "E0" error code and stops heating
Intelligent Automatic Heating Submersible Aquarium Heater adopts automatic constant temperature control. When water temp reaches the set temp, it will stops heating; when the water temp falls lower than the set temp by 2 F, it will automatically heat up again; Memory function allows no need to reset the temperature after a power outage, so it is more convenient to unplug and change the water.
Safe and Easy to Use Adjust the temperature with the external controller. Press the SET button to enter temperature settings, increasing the set temperature by 1 C with each press within a range of 15 C to 34 C. Long press for 5 seconds to switch between Fahrenheit and Celsius.
Kind Remind The heater for aquarium fish tank must be fully immersed in water.Do not place the external temperature controller in the aquarium. The controller is not waterproof. Please unplug the power supply when clean the aquarium or change water

DONYER POWER Electric Quartz Patio Heater Garden Heater Waterproof Outdoor Free Standing 2000W

DONYER POWER

5% off

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9,5

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Features

3 Heating Modes 650W low heating; 1300W heating; 2000W high heating
Reliable choice With built-in overheat protection and fall protection, it will be very friendly to all members of the family.
Flexible radiation Rotatable head angle range of plus or minus 45
For indoor & outdoor activities Can be installed on indoor and outdoor ceilings, such as living room, garden, balcony, outdoor terrace and camping BBQ area with UKCA CE GS LVD EMC IP24 certificate

Bestway Pool Heater for Above Ground Pools, Suitable for 15ft Swimming Pools, Grey

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SOFT TOUCH CONTROL Control with ease using the soft touch panel. Ergonomically designed to be used while remaining comfortable, it has control options to suit you
COMPATIBLE WITH with above ground pools between 1,520-17,035 L (400-4,500 gal.) in water capacity and with 3,785 L (1,000 gal.) or smaller cartridge & sand filter pumps
WATER SENSOR features and effective power switch and temperature control panel with on off button for precise adjustments

Pool Crab Pool Chlorine Tablets, 1kg Multifunctional 4-in1 Dispenser Tablets for Swimming Pool, Hot Tub, Spa, 50 x 20g Chlorinating Chemical Tabs (Sanitiser, Stabiliser, Algaecide and Clarifier)

Pool Crab

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ALWAYS CLEAR WITH POOL CRAB Untreated pool & spa water will harbour and grow bacteria. This is the leading cause for water discoloration, bad smells, and negative health consequences. Use the Pool Crab chlorine tablets to keep your pool, spa & hot tub completely safe for you and your loved ones. We make no compromise on water safety!
MULTIFUNCTIONAL 4-in-1 TABLETS Pool Crab chlorine tablets are industry standard premium quality 4-in1 sanitiser, stabiliser, algaecide & clarifier tablets for cleaning and maintaining your water. The 4-in-1 fast acting chlorine tablets help kill and prevent bacteria, organisms and algae growth. Never change water again!
1KG BUNDLE KEEPS GOING 50 x 20g sun-stabilised slow-release chlorine tabs are protected from the sun and therefore last much longer. The advanced dissolve function releases chlorine slowly and can last up to one week. The chlorine tablets also contain water clarifier which helps to bind debris and particles together so the filter can trap it.
COMPATIBLE WITH ALL Pool Crab chlorine tablets are all rounded versatile tabs which can be used in hot tub, spa, inflatable pool, indoor & outdoor pools, in-ground and above-ground pools with or without floating pool dispenser (dispenser not included).
THE POOL CRAB PROMISE We go the extra mile to ensure you are fully satisfied with your purchase. With the Pool Crab satisfaction promise you can be assured you are in safe hands. If you are not satisfied, we will refund you the full price, no questions asked!

Electric on Demand 220-240V 2-3KW Hot Water Heaters 10L Safty Plug Point of Use Boiler Wash Under Sink on with Digital Temperature Control Smart Control

VINABUKS

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Compact and Versatile Design The VINABUKS Electric Water Heater features a smart 3.3-gallon (15L) tank, perfect for point-of-use applications. Its compact size fits effortlessly under sinks, making it ideal for kitchens, bathrooms, utility rooms, offices, and RVs. This space-saving design ensures hot water is always within reach.
Instant Hot Water Experience the convenience of immediate hot water at your fingertips. This water heater offers a fast recovery rate, providing instant hot water whenever you need it. The efficient 220V US safety plug ensures safe and reliable performance.
Complete Installation Kit Included This water heater comes with all necessary accessories for a seamless installation, including 2 PCs compression stainless steel water hoses, 1 pressure relief valve, and 1 tee fitting. The user-friendly design ensures a quick and easy setup process.
High Energy Efficiency Equipped with advanced insulation materials and a high-efficiency design, the VINABUKS water heater minimizes heat loss and maximizes energy savings. Its rapid heating capability ensures you get hot water on demand, reducing energy consumption and saving on your utility bills.
Durable and Safe Construction Built to last, the VINABUKS water heater features a high-quality stainless steel tank and a leak-proof design. It includes multiple safety features such as overheat protection and a pressure relief valve. With reliable customer support, you can trust in its long-term safety and performance.

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

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Tubular Heater 1ft, 2ft, 3ft, 4ft Tube Heater Green house Bathroom Conservatory (1FT (60w))

Available in 1ft, 2ft 3ft and 4ft lengths these tubular heaters are perfect for low wattage heating as they come in the following wattages 60w, 120w, 180w and 240w.

~~£ 29.99~~ free shipping

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SmartPool WWS421P Sunheater Solar Pool Heater for Above Ground Pools

Solar Pool Heater - The SunHeater solar pool heating system allows you to capture the free heat from the sun's rays to effectively increase your pool water temperature. It is an efficient and cost-effective way to heat your above ground pool.

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Briwellna Electric Instantaneous Tankless Water Heater 5.5kW 220V, Instant Hot Water Heater with Digital Display for Kitchen Bathroom Sink Counter Under/Above Home Indoor (White)

Compact Size Fits Almost Anywhere This water heater is designed specifically with replacements in mind. The smaller dimensions (210mm 172mm 73mm)makes it easier to swap out your existing less-efficient water heater.

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10W Solar Panel Fan Kit, Pool Heater Solar Panels, Kit Weatherproof Solar Powered Dual Exhaust Fan Wall Mounted for Chicken Coops Greenhouses Sheds Dual Exhaust Fan Wall Mounted

Wide Applications This multifunctional solar panel fan kit is suitable for use in greenhouses, pet house, chicken coop, cabin, dog house, greenhouse, caravan, wagon, camping, where proper ventilation is crucial for maintaining a healthy environment. The solar panel fan kit comes with everything you need for installation, making it easy to set up and use.

~~£ 31.29~~ free shipping

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Evoio Pool Filter Pump Above Ground, 1000 Gallons Swimming Pool Filter Cartridge Pump, Electric Pool Water Pump Filter for Pools Sand Cleaning Tool Set with 1 Pool Filter Cartridge

Widely Applicable Pool Filter Pump Pool with filter pump ideal for 10-15ft swimming pool for kids and adults, 10-feet 15-feet frame pool models. Air release valve for air trapped inside filter chamber

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High Precision 5.5KW/9KW/11KW15KW/18KW Heat Pump Swimming Pool Heater Swimming Pool SPA Electric Water Heater 220/ 380V Widely Applicable(11KW,220)

OUHFCASN

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Gre 90230 – Ball Solar Heater for Above Ground Pools

solar heating system for pool water

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ThermoMate AZ132B 5L Instant Gas Water Heater, Portable Propane Water Heater, Use for Outdoor Showers, Horses, Camping, Motorhome

LOW WATER PRESSURE STARTUP - Thermomate gas water heater instantly delivers 5L min of hot water at 25 C temperature rising, with 0.25 bar low water pressure startup.

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Ecosmart US Smart Pool 18 Heater, White, 17 x 14 x 3.5

Compatible with Ecosmart Remote Control

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hygger Submersible Digital Aquarium Heater 100W, Betta Fish Tank Turtle Tank Heater with Intelligent LED Temperature, Thermometer and External Adjustable Temperature Controller for 25-90 Liter

Compact Small Heater 220-240V 60HZ oval shape design little aquarium heater, fast heating for small fish tank. 50W tank heater is for 1-6.5gallon, 100W tank heater is for 6.5-13 gallon. Heater Dimension 7x3.5x 11 cm. The power cord is 150cm, long enough for use indoors. With 2 strong suction cups at the back side of the betta heater, it's easy to install it on to glass, acrylic or plastic tank

~~£ 22.99~~ free shipping

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VELPAX Mini Electric Water Heater, 10L Electric Instantaneous Water Heate,1500KW 220V,Waterproof Under Sink Water Heater with Digital Display for RV Kitchen Bathroom

Electric Mini Tank Water Heater - The Electric Mini Tank Water Heater,1500-watt heating system delivers instant hot water in seconds without preheating,with more safety protection such as anti-freezing protection,over heating protection, 10L of hot water can be output per minute. The maximum temperature raise is 158 F.

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12LPM Gas Water Heater, 24KW LPG Instant Water Heater with Ultra Low Starting Water Pressure 0.2 bar, Propane & Butane Available, for Hot Shower & On Demand Use at Home, RV, Cabin, Barn

Massive Hot Water - Premier 4 x 250mm burner and 100% pure copper pipe of brilliant thermal conductivity are gathered to produce 12LPM (+25 ) hot water within 3s.

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The best pool heaters in comparison

Guaranteed independent and reliable

Features

Features

Features

Features

Features

Features

Features

Features

Features

Features

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