10 Best Pool Heater in The UK

Last updated on 25/07/2025

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Best Choice

9.7

Exceptional

Bestway

Bestway | Flowclear Pool Heater | With Automatic Temperature Regulation

Why We Love It

Creates relaxing swimming environment.
Super easy to use.
Offers luxurious pool experience.

Main Highlights

WARM YOUR POOL: take the chill off your pool to create a relaxing swimming environment by gently heating the water, maximum heater output: 40 C (104 F). Please note pump is required for pool heater to work effectively; heater connects to the pool filter via 32mm hose connection
EASY TO SET-UP & USE: the tactile on/off button, automatic temperature regulation and temperature control panel make heating your pool easier than ever
ADD A TOUCH OF LUXURY: to your swimming experience, our pool heaters help create comfortable water temperatures so you can experience a relaxing swim of heated bliss
SAFE AND RELAIBLE: this pool heater is supplied with a portable residual current device-rated residual operating current not exceeding 10mA
COMPATABLE: with above ground pools with a water capacity between 1,520-17,035 L (400-4,500 gal.) and filter pumps with flow rates up to 3,785 L (1,000 gal.), pool compatibility: 15’ and smaller

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.

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.

AufuN Pool Heating Fire Barrel, Firewood Pool Heater with Fire, Stainless Steel Swimming Pool Heater with 32/38 mm Connections and 18 m Built-in Spiral Tube, Pool Oven Heaters for Swimming Pools,

Why We Love It

Eco-friendly and energy-saving solution.
Durable stainless steel construction.
Versatile for pools and barbecues.

Main Highlights

Pool heating fire barrel: Our pool heater can be fired with firewood, briquettes and charcoal. So you can heat your pool easily and quickly without relying on electricity or natural gas, energy saving and environmentally friendly.
Durable and reliable: Made of stainless steel, it is waterproof, rust-proof and heat-resistant, with a heat-resistant temperature of up to 300°C, which ensures a long-lasting, stable heating effect and a long service life even when used outdoors.
Powerful heating effect: Equipped with stainless steel heating pipes with a total length of 18 m and a large water output, it is able to provide a high-quality heating effect, so you can enjoy a pleasant water temperature in the pool at any time of year.
Safe and reliable: To take into account the safety factor, the design around the pool heating is reasonable, avoids stacking flammable materials and ensures that children cannot get close to avoid accidents.
Multifunctional design: equipped with 32 mm and 38 mm plastic connectors, it can be connected to different pool interfaces as required, convenient and fast. In addition to heating swimming pools, our products can also be used for outdoor barbecue parties.

Water level sensor included.
Simple hook-up and operation.
Connects to existing filter.

Main Highlights

220-240V with RCD (UK plug)
Compatible with round Easy set or metal frame pools 15' (4.57m) diameter or smaller
Easy hook-up and operation
Water level Sensor
Easily connects to new or existing pool filter system

Bestway | Solar-Powered Pool Heating Pad

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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.).

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

Why We Love It

Eco-friendly solar heating technology.
Suitable for various pool sizes.
Easy installation with pump.

Main Highlights

1m x 1m surface to absorb sun's rays Dimensions before filling 1.20m x 1.20m.
Includes 32mm hose attachment points and 2 B adapters for use with 38mm hoses
Simply attach to a filter pump up to 1/3 hp or pump flow rate less than 2,000gph (7,570L/h)
Eco-friendly Solar technology that increases the temperature of the pool water by approximately 3-5deg depending on the size of pool and weather conditions.
Suitable for above ground pools with a capacity less than 30,280L (8,000gals). Mats can be joined together for bigger pools.

Gxpjycfob Water Heater for Bath, 2500 W Immersion Heater, Portable Electric Water Heater With 304 Stainless Steel Lid and Thermostat, Paddling Pool Heater, Auto Shut Off(02)

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Why We Love It

High power for rapid heating.
Reliable stainless steel safety design.
Automatic thermostatic temperature control.

Main Highlights

High Power Performance: The 2500 W immersion heater is designed for rapid heating, making it an ideal paddling pool heater and water heater for bath applications. With its impressive wattage, this portable electric water heater can heat up to 5 gallons of water in just minutes, perfect for camping trips or a quick soak in your bathtub.
Safety First: Our portable immersion heater features a robust 304 stainless steel lid that ensures safety and reliability during use. The design prevents direct contact with the heater body while allowing efficient heat release into the water. Additionally, the built-in thermostat offers automatic shut-off when overheating is detected, providing peace of mind for users.
Efficient Thermostatic Control: This electric tube heater maintains a consistent temperature thanks to its integrated thermostat. Once the desired water temperature is reached, the heater automatically turns on and off to keep the water warm without the risk of overheating. Enjoy your time in hot tubs or under sinks without worrying about temperature fluctuations.
User-Friendly Design: Using our heater is a breeze! Simply place the immersion heater in a container filled with water, ensuring it's fully submerged, then plug it into a grounded 240V AC outlet.
Versatile Applications: Our immersion water heater is not just for outdoor use; it's perfect for various settings including family baths, hot tub boilers, and even for preparing warm water for swimming pools. Experience the comfort of hot water wherever you are, whether at home or outdoors, with this essential 2500 W heater.

2500W Portable Electric Water Heater with Thermostat, Immersion Instant Hot Bathtub Heater for Camping, Boiler, Above Ground Pool Warmer

Why We Love It

Safety features for peace of mind.
Effortless temperature control always.
Fast heating saves valuable time.

Main Highlights

1. 【Safety Shield】Our portable water heater features a full stainless steel guard that blocks direct contact with the heating element - safe around kids and pets! Auto shutoff prevents dry burning, while strategic holes accelerate heat transfer into water.
2. 【Precision Thermostat Control】Set your ideal temp effortlessly. This electric water heater maintains perfect warmth without overheating risks. Intelligent heating, automatic power-off when temperature is reached, Enjoy soothing baths or warm cleaning water while the smart system handles safety - just keep the handle dry during use.
3. 【Lightning-Fast 2500W Heating】Boil 5 gallons in 15 minutes flat with our industrial-strength portable water heater. The 2500W dual-mode option saves energy for small jobs or blasts heat for pools/buckets. Reclaim family time, not boil-waiting time!
4. 【Plug-&-Play Simplicity】Submerge guard fully → 2) Plug into outlet → 3) Enjoy hot water! This electric water heater works in any container. No setup, no manuals - even your tech-challenged uncle can use it.
5. 【Ultimate Multi-Use Flexibility】Heat water anywhere: ✔ Bath buckets ✔ Livestock troughs ✔ Campsite washbasins ✔ Garage utility sinks ✔ Pet cleaning tubs ✔ Emergency preparedness

Cartridge Water Heater 2500w - Electric Immersion Water Heater with Digital Lcd Thermometer - Stainless Steel Guard Submersible Heater - Set Temperature To Automatically Power Off for Inflatable Pool

Why We Love It

Rapid and efficient heating.
User-friendly with safety features.
Precise temperature control guaranteed.

Main Highlights

Efficient Heating: The titanium fully immersion water heater boasts a powerful 2500W capacity, ensuring rapid heating of liquids to your desired temperature. This efficiency not only saves time but also keeps your energy costs low, providing an economical solution for consistent heating needs
Easy to use and safe: Just Immerse in water at proper level. Plug into any grounded wall outlet.Come with a digital LCD thermometer, easy to measure water temperature. Each of our bucket heater has been strictly tested.
Precise Temperature Control: Equipped with a highly sensitive and corrosion-resistant temperature sensor, the bathtub water heater maintains liquid temperatures with precision, within ±0.1°C. With a range of 41 to 212°F (5 to 100°C), it automatically adjusts to ensure your desired temperature is consistently met
Leakage Protection & Easy To Use: Designed with safety in mind, the hot tub heater includes high-quality wiring and plugs, along with a leakage protection feature that automatically cuts power in case of a short circuit. The user-friendly LCD screen displays both the set and current temperatures for easy monitoring
Portable & Widely Used: Lightweight and compact, this immersion water heater is easy to transport and versatile in use. Perfect for heating water in pools, sinks, bathtubs, storage tanks, and more, it ensures quick and efficient heating wherever you need it

8.7

Excellent

We scanned 1862 products

We reviewed these offers relevant to the 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 Bestway, COSTWAY, Monzana, Aufun, Intex, Gxpjycfob, generic, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Pool Heater in the market, we considered we took a deep dive into 9311 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 Bestway | Flowclear Pool Heater | With Automatic Temperature Regulation. We love many things about this product by Bestway. What sets it apart from the competition is Creates relaxing swimming environment, Super easy to use, Offers luxurious pool experience.
The best value product for most shoppers and where user satisfaction is continuously the highest is 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) by COSTWAY based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Pool Heater and the best cost-to-value ratio is Electric Pool Heaterat Intex with a 49% discount.
Our list of the best 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 Pool Heater in The UK

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We scanned 1862 products

We concluded that: