9 Best Above Ground Pool Heaters 2025 in the UK

The Lay-Z-Spa Heater Pump Unit with Freeze Shield Technology is designed for those who own AirJet models of Lay-Z-Spa, including both the 2021 version and earlier models. One of its strengths is its compatibility with multiple spa models, making it a versatile choice for AirJet users. The Freeze Shield technology is a standout feature, allowing the heater to function all year round, which is particularly valuable in colder climates where the risk of freezing can be a major concern.

This unit powers the Lay-Z-Spa massage system, adding an extra layer of relaxation to your spa experience. The inclusion of a timer function is another user-friendly feature, offering convenience by automatically heating the water. Installation and maintenance seem straightforward, as the product is aimed at home users.

Weighing about 12.74 kg, the heater pump unit is relatively portable. It ranks highly in pool accessory parts, indicating its popularity among users. This product is best suited for those already invested in the Lay-Z-Spa ecosystem, looking for a reliable year-round heating solution.

This Intex pool set combines a durable metal frame pool and an eco-friendly solar heating mat designed for above-ground pools. The pool itself is made from puncture-resistant 3-ply PVC material, holding about 1718 gallons of water and offering solid build quality for its size. The solar heating mat uses environmentally friendly technology to raise water temperature by around 3 to 5 degrees, depending on the weather and pool size.

It’s especially suited for pools under 8,000 gallons, with the option to connect multiple mats for larger pools. Installation is straightforward, as the mat simply attaches to a pump with a flow rate below 2,500 gallons per hour, making it low maintenance and energy-efficient since it relies on solar power rather than electricity or gas. However, its heating capacity is limited compared to electric or gas heaters, so it’s best for mild temperature boosts rather than rapid or large-scale heating.

This set is well suited for pool owners seeking an affordable, eco-friendly solution to gently warm their above-ground pool water with minimal installation effort.

The Lay-Z-Spa Hot Tub WiFi Enabled Airjet Plus Pump Pool Heater is designed for AirJet model pool owners. It has a corded electric power source and operates at 230 volts, providing reliable heating for small to medium-sized pools. Notable is its WiFi capability, allowing remote control and monitoring via a smartphone app, enhancing user convenience.

Weighing 12.5 kilograms, it is relatively lightweight and manageable during installation and maintenance. Although made from plastic, which may be less durable than metal alternatives, it should still suffice for regular use if handled carefully. With a 4.6-star rating from 17 customer reviews, users likely appreciate its performance and ease of use.

Ranking 12th in the pool heaters category on the best-seller list, this product shows moderate popularity and reliability. The heater is well-suited for AirJet model pool owners seeking a user-friendly, WiFi-enabled heating solution, with considerations around its material and energy efficiency.