Best Solar Water Heaters Deals Online in the UK (25 Deals Found)

Last Updated - 13/02/2026 Sort By:

Best Choice
Monzana

New
Monzana® Solar Collector Pool & Water Heater | For Heating Water | 112x55x14cm 10000L/h | Height Adjustable | 32/38mm Co
Extend the pool season: thanks to solar heating, you can also use pure solar power in the pool. A collector with 10,000

£87.50
Best Value
Intex

New
Intex Eco-Friendly Solar Heating Mat for Swimming Pools #28685
Eco-friendly Solar technology.

£18.99 £23.37
Used
iBoost Solar Immersion Water Heater Controller with Timer
The Marlec SOLAR-I-BOOST+ Solar PV Immersion Heater Controller is a white-coloured solar panel kit specifically designed

£175.00
VEVOR

New
VEVOR Solar Pool Heater, 4 x 10 ft HDPE Pool Heating System - Durable & Weather-Proof, with Complete Accessories, Univer
Efficient Solar Heating: By adopting efficient solar pool heating systems, solar energy is quickly converted into heat,

£84.99
New
DN25 Immersion Heater 12-48V DC Solar Element 300-1500W Free UK Delivery
Material: SUS304.

£26.98
FiNeWaY

New
Fineway Premium 20L Solar Heating Camping Shower Water Bag For Hot Water With Temperature Thermometer 45°C – Removable H
AUTOMATIC SOLAR HEAT ED SHOWER BAG: The Automatic PVC material can efficiently absorb the solar energy to heat up the wa

£15.99
Svans

New
Svans Water Heater 12V 7 Litre Hot Water Heater, Pressure Resistant, for Camper Caravans, Camping, Solar System
The pressure-resistant 7 liter 12v boiler for: Campers Caravans Solar systems Camping Gardens Yachts Boats and buses

£279.00
New
SOLiC200 Solar Immersion Heater Controller
Get free hot water from the sun with this highly efficient solar diversion unit. Perfect for reducing energy bills and m

£169.99
21% Off
Monzana

New
MONZANA® Solar Pool Water Heating Regulation Kit | Complete 12-Piece Bypass Set for Water Flow Control & Heater Valve Co
OPTIMISED WATER FLOW & TEMPERATURE CONTROL: The Monzana Bypass Set enables precise regulation of water flow through your

£22.05 £27.95
New
12V DC U-Shaped Immersion Water Heater Heating Element DN25 Solar Electric
Tube length: 175mm.

£27.99
Navaris

New
Navaris Solar Shower Bag 20L - 2x Solar Heating Camping Shower Bag with Shower Head, Hose, Tap Head - For Ideal Travelli
CAMPING TO GLAMPING: If you want the home comfort of a shower while out camping or at a festival, use the Navaris Solar

£6.79
Ariston

New
Ariston VELIS EVO 80L Electric Water Heater, Twin Tank, Shower Ready, Eco Evo, Durable Water Boiler & Hot Water Dispense
Water heater designed and manufactured to be installed in UK

£594.99
New
12V Solar Hot Water Pump Brushless High Temperature Resistant Heater Waterproof
Features: Waterproof, Long Working Life, Low Energy Consumption. Screw Connection: 1/2 "NPT, BSP Threaded Joint. Accepta

£6.89
Yosoo Health Gear

New
Solar Hot Water Heater Pump, High Temperature DC 12V 10W Brushless Water Heater Hot Circulation Pump
[Wide Usage]: The solar water heater pump is perfect for the family home thermal solar systems or any circulation pump a

£21.42
New
12V Solar Hot Water Pump Brushless High Temperature Resistant Heater Waterproof
Features: Waterproof, Long Working Life, Low Energy Consumption. Screw Connection: 1/2 "NPT, BSP Threaded Joint. Accepta

£6.89
Ariston

New
Ariston VELIS EVO WIFI 45L Electric Water Heater, Twin Tank Technology, B Class ErP, Aqua Ariston Net App, Ideal Electri
Quick Heating Time: Ready to provide hot water in less than 30 minutes, perfect for busy homes.

£595.95
Used
10L Svans 12v 200w Water Heater - Used - tested : model SV10 RRP 319 campervan
Only this is rust to the pipe work mainly the out. When I tipped the water out it was clear but this is not for drinking

£140.00
New
12V Solar Hot Water Pump Brushless High Temperature Resistant Heater Waterproof
Features: Waterproof, Long Working Life, Low Energy Consumption. Screw Connection: 1/2 "NPT, BSP Threaded Joint. Accepta

£6.89
New
Solar Immersion Heater Element 48V 1KW (1000W) with Thermostat BSP 2-1/4" 2.25"
48 volt systems produce up to 1000W of heat, but can be used with a 24 volt system to produce 250W. Thread Size : BSP 2-

£69.99
New
Solar Immersion Heater Element 48V 1KW (1000W) with Thermostat DN32 BSP 1 1/4
Thread Size : DN32 / BSP 1.1/4" / 42mm. 48 volt systems produce up to 1000W of heat, but can be used with a 24 volt syst

£59.99
New
12V Solar Hot Water Pump Brushless High Temperature Resistant Heater Waterproof
Features: Waterproof, Long Working Life, Low Energy Consumption. Screw Connection: 1/2 "NPT, BSP Threaded Joint. Accepta

£6.89
New
12V Solar Hot Water Pump Brushless High Temperature Resistant Heater Waterproof
Features: Waterproof, Long Working Life, Low Energy Consumption. Screw Connection: 1/2 "NPT, BSP Threaded Joint. Accepta

£6.89
New
Whole House On/Off Grid Split Solar Water Heater System
DOES NOT INCLUDE SOLAR PANELS SOLAR PANELS SOLD SEPARATELY INCLUDES: TANK, SPLIT OUTDOOR UNIT WITH BUILT IN SOLAR CONTRO

£2,711.82
Used
Solar thermal, Artic solar XCPC
The product is a concentrated solar thermal heating system by Artic Solar, designed to harness renewable energy to heat

£550.00
New
G1/2 Thermostatic Mixing Valve Solar Water Heater Mixing Control Valve
This thermostatic valve is made of high quality materials, durable, wear-resistant, high temperature resistant, long ser

£48.98

25 Solar Water Heaters deals are available from: Amazon, eBay stores, starting from £6.79.
The biggest discount we found is 21% on MONZANA® Solar Pool Water Heating Regulation Kit | Complete 12-Piece Bypass Set for Water Flow Control & Heater Valve Connectivity | Ideal for Heat Pump & Solar Heating Systems at Amazon.
The lowest price we found is £6.79 while the highest is £2,711.82.
Prices for the best Solar Water Heaters deals average at £229.71.
Last updated on February 13, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Solar Water Heaters.