10 Best Solar Pool Heater in The UK

Last updated on 02/08/2025

Advertising disclosure

Best Choice

9.7

Exceptional

Save 13%

SunHeater

SmartPool WWS421P Sunheater Solar Pool Heater for Above Ground Pools

13% OffFree Shipping

Why We Love It

Easy to install.
Maximizes solar capture.
Perfect for large pools.

Main Highlights

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.
EXTENDS POOL SEASON - Your pool's pump pushes the water through the panel's many tubes where it warms up by the sun and then returns to the pool. This system can raise the water temperature down to -9.4°C and extend your bathing season by weeks!
EASY TO INSTALL - This solar pool heater uses your existing filtration system and comes with the necessary plumbing fixtures to connect with flex hoses to a rigid wall above the ground (hard line installations require additional parts not included).
HOSE ON WEB DESIGN - The tube-on-web design allows SunHeater to capture the largest possible sun, maximizing square shots. It provides rigid flexibility allowing the plates to expand and contract with changing temperatures, giving it the strength needed to last.
DIMENSIONS - This solar solar pool heating system includes two 2.4" x 20" panels (80 sq.ft). and is perfect for heating above ground pools up to 80cm round or 45cm x 91cm oval.

Harnesses solar power for heating.
Efficient and adjustable energy generation.
Perfect for saltwater pools.

Main Highlights

PLEASANT TEMPERATURES: Thanks to solar heating, you can also use the pure power of the sun for your pool. A collector with 10,000 L/h heats the pool water up noticeably without any additional costs. Extend the swimming season with the curved solar heating by Monzana.
EFFICIENT ENERGY GENERATION: The design of the pool heater effectively uses more space than straight solar mats and, with height-adjustable feet, ensures optimal alignment with the sun. You can connect several collectors in series, which increases the effect even more.
FOR SALTWATER: The heating panel of the solar heater is made of weather-resistant HDPE, which is more stable, scratch- and tear-resistant than plastic, which means you can also use it in saltwater pools. The pool heating panels work completely silently.
COMPATIBLE 2IN1 ADAPTER: Thanks to the practical adapter from 32 to 38mm connection diameter, you can easily connect the heat-storing solar collector to pool hoses, bypass sets and sand filter systems. This way, they optimally control the water temperature in the swimming pool.
The legs can be removed for winter storage.

COSTWAY Solar Thermal Pool Heater Dome, Solar Heater Pool Heating System with Stands and Hose Connector, Inground Pool Warmer Equipment (58 x 58 x 32 cm)

Why We Love It

Effective heat retention technology.
Space-saving and adjustable design.
Universal compatibility for pools.

Main Highlights

【Enhanced Solar Absorption】Equipped with a black coil, this water warmer allows it to capture and retain heat more effectively, boosting your pool’s temperature by 3-4℃. The transparent dome cover not only maximizes sunlight penetration but also acts as a protective barrier to prevent heat loss.
【Flexible & Space-Saving Design】Featuring foldable legs, you can easily adjust this solar heater’s angle to capture the optimal amount of sunlight throughout the day. Plus, the wider legs ensure great stability. When the season changes, the 2 legs can be folded down to make storage compact, saving you valuable space.
【Versatile Connection Options】This water heater includes 90° rotatable hose connectors, you can connect up to 3 solar pool heaters in series to maximize heating power. We recommend pairing this solar water heater with a 1-2HP power pump (not included) with a flow rate of up to 16 GPM. It fits joints of 1½” and 1¼”.
【Universal Pool Compatibility】Whether you have an above-ground or in-ground swimming pool, this pool warmer is perfectly suited. When using this heater, ensure the pressure does not exceed 0.8 kPa with a daily air pressure of 35PSI for safe and efficient operation.
【Easy Setup & Complete Package】 In addition to the 2 hoses, this solar power heater also comes with 1 flat gasket, 1 thread nut hose, 1 sealing tape, 2 hose clamps and 2 hose reducers. Everything you need for a hassle-free setup is included in the package. Note: The package comes ready with one heater.

HOMFME Solar Dome Heater, Thermal Solar Heating System with Stands and Hose Connector, Outdoor Inground Swimming Pool Heater Warmer Equipment (58 x 58 x 32 cm)

Why We Love It

Energy Efficient and Eco-Friendly.
Quick Heating for All Pools.
Sturdy Materials for Longevity.

Main Highlights

Energy Saving Solar Heating: Our solar pool heater uses only sunlight and does not require the use of other energies, such as electricity, gas and so on, which is very environmentally friendly. Besides, the black main part will collect much solar energy.
Efficient Heating System: The 2 pipes design can let cold water in while producing hot water, improving the efficiency of heating. At the same time, the transparent dome of this thermal solar heater can prevent heat loss and heats the water faster.
Sturdy & Durable Materials: The main body of this solar water heater is made of PP and PC, which have excellent heat resistance and are healthy for the human. In addition, the hose is made of PE and has good corrosion resistance for long time using.
Suitable for Various Pools: This swimming pool heater is suitable for different sizes of pools and you can use several heaters for quickly heating for large pools. What’ s more, this pool solar heater can be used conveniently for above ground and inground pools.
Easy Assembly & Storage: The detailed instruction and all parts are provided to help you install this pool warmer equipment quickly. Meanwhile, the hose which can be rolled up and 2 folding stands ensure simple storage.

LOWENERGIE Solar Thermal Swimming Pool Heater Dome, Totally Solar Powered, Water Pump and Solar Panel Kit

Why We Love It

Extends your swimming season.
Efficient solar energy use.
Long-term, heavy-duty service.

Main Highlights

This energy-saving pool heater will heat your pool water efficiently with solar energy and therefore extend your swimming season.
Solar heater dome should be installed between the pump/filter and return inlet of the pool. Coldwater flows from the pool water outlet to the pump/filter and through the solar heater. Water is heated while flowing through the heater coils, and then back to the return inlet of the pool. The legs allow you to angle the heater towards the sun and you can also add more domes to the system to increase the efficiency
We also include a solar panel that is connected to the pump, this means water will only flow in good conditions. No water will flow in the evening and lose precious heat. This energy-saving pool heater will heat your pool water efficiently with solar energy and therefore extend your swimming season. No gas or electricity is required. Made of HDPE material, the pool heater is heavy-duty for long-term service. POOL NOT INCLUDED!
Pool hose may be substituted with blue

Steinbach Speed Solar Sun 49120 Solar Pool Heater Low-Density Polyethylene 0.7 x 3 m for Pools with Capacity of up to 12 Cubic Metres/Hose Connector Diameter 32/38 mm

9% OffFree Shipping

Why We Love It

Long-lasting, high quality collectors.
Infinitely extendable for convenience.
Suitable for salt water.

Main Highlights

High quality, long-lasting LDPE collectors
Can be extended indefinitely
Ready to assemble
The solar collector is suitable for salt water
Dimensions: 3.0 x 0.7 metre Weight: 6 kg maximum pressure of 1 bar at 20° C water flow rate at least 2,000 litre/hour. max. 10,000 litre/hour

LOWENERGIE Solar Thermal Swimming Pool Water Heater Dome (1)

Why We Love It

Eco-friendly, utilizes solar energy.
Enhances swimming season length.
Ensures durable, long-term service.

Main Highlights

This energy-saving pool heater will heat your pool water efficiently with solar energy and therefore extend your swimming season. No gas or electricity is required. Made of HDPE material, the pool heater is heavy-duty for long-term service. The legs allow you to angle the heater towards the sun. Additionally, you can also increase heating efficiency by connecting several heaters together.
Dimensions: 57 x 57 x 32 cm (L x W x H) Material: HDPE + Plastic Hose length: 2 meters Hose material: LDPE The diameter of connectors: 38 mm Suitable for swimming pools up to 16800 L
Solar Heater should be installed between the pump/filter and return inlet of the pool. Coldwater flows from the pool water outlet to the pump/filter and through the solar heater. Water is heated while flowing through the heater coils, and then back to the return inlet of the pool. Multiple domes can be used to increase heating efficiency.
Contains 1 Heating dome box
Each box contains 1 x Pool Heater, base unit 1 x Dome Cover 1 x Long Hose (38mm dia) 1 x Short Hose (38mm dia) 2 x Hose Reducer (38mm to 32mm) 2 x Connectors 2 x Hose Clamps 1 x Threaded nut hose connector 1 x Flat gasket (for threaded nut hose connector) 1 x O Ring rubber rings (for threaded nut hose connector) 1 x Comprehensive instruction manual

Bestway | Solar-Powered Pool Heating Pad

15% OffFree Shipping

Why We Love It

Eco-friendly pool heating solution.
Effortless installation and usage.
Optimizes energy and increases temperature.

Main Highlights

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 3-5ºC (5-9ºF).
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.).

Pool Solar Heating Cover Pool Cover Pool Protection Foil Pool Solar Blanket Black Ø 3.6m 140 µ

Why We Love It

Large diameter for excellent coverage.
Durable coating ensures long-lasting use.
Efficiently retains pool heat.

Main Highlights

Diameter Ø 3,6 m
140µ thick PE coating
Integrated air cushion
Colour black
Saves the warmth of sunlight in order to heat the pool

Intex Eco-Friendly Solar Heating Mat for Swimming Pools #28685

14% Off

Why We Love It

Eco-friendly solar technology utilized.
Increases pool temperature significantly.
Easy drainage and storage.

Main Highlights

Eco-friendly Solar technology.
Increases pool temperature by 3-5 degrees
Suitable for AGP's up to 8,000 gal (30,280L)
Easy to drain and store.
Simple hook up.
This product will not work in temperatures below 26 degrees Celsius.

8.7

Excellent

Save 14%

We scanned 1712 products

We reviewed these offers relevant to the Solar Pool Heater within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like SunHeater, Monzana, COSTWAY, HOMFME, LOWENERGIE, Steinbach, Bestway, WilTec, Intex, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Solar Pool Heater in the market, we considered we took a deep dive into 8561 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is SmartPool WWS421P Sunheater Solar Pool Heater for Above Ground Pools. We love many things about this product by SunHeater. What sets it apart from the competition is Easy to install. , Maximizes solar capture. , Perfect for large pools.
The best value product for most shoppers and where user satisfaction is continuously the highest is Monzana® Solar Collector Pool & Water Heater | For Heating Water | 112x55x14cm 10000L/h | Height Adjustable | 32/38mm Connection Adapter | UV-Resistant HDPE | Lovely Warm Swimming Water by Monzana based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Solar Pool Heater and the best cost-to-value ratio is Bestway | Solar-Powered Pool Heating Padat Bestway with a 15% discount.
Our list of the best Solar Pool Heater is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Solar Pool Heater in The UK

Related Deals You Might Like for Solar Pool Heater

Intex 28685 Pool EcoFriendly Solar Heating Mat, Includes 32mm hose attachment points Suitable for above-ground pools with a capacity less than 30,280L

Bestway | Round Solar Pool Cover for Above Ground Pools, 3.05m

Bestway BW58241 10 feet Steel Pro Frame, Solar Swimming Pool Cover, Blue

Intex Solar Pool Cover for 10ft Frame or Easy Set Pools #29021, #28011

Bestway | Round Solar Pool Cover for Above Ground Pools, 3.66m x 3.96m

Intex 29020 - Solar cover for pools 196 cm diameter

Solar Pool Cover | Round Solar Swimming Pool Heater | 6FT/8FT Paddling Pools Heaters for Aboves Ground Pools | Thermal Blanket for Pollution Reduction & Insulation Function

Intex Solar Cover for Ultra Frame Rectangular 400 x 200 cm Solar Tarpaulin Blue

Generic Portable Water Heater, Immersion Heater, 2500W, Black, Stainless Steel, 240V, Heats 5 Gallons in Minutes

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

We scanned 1712 products

We concluded that: