Advertising Disclosure Water Heaters Parts Comparison - June 2025
5 Best Water Heaters Parts In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.9Exceptional | 2  9.8Exceptional | 3  9.6Exceptional | 4  9.4Excellent | 5  9.3Excellent |
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ModelAriston VELIS EVO 80L Electric Water Heater, Twin Tank, Shower Ready, Eco Evo, Durable Water Boiler & Hot Water Dispenser, Ideal Electric Heater for Home & Bathroom Heater, Unvented Kit, UK Install | Model IMMERSION HEATER CONTROLLER + BOX IMM24 By APT | Model Compatible with Truma Ultrastore Water Heater Element 850w 70020-00270 7002000270 for Caravan/Motorhome comes with Thermostat & O Ring | Model Ariston Water Heater Expansion Vessel Kit A | Model Duratherm Resetable Immersion Heater Thermostat 7 Inch 49020307 |
BrandAriston | Brand Best Price Square | Brand cantondz | Brand Ariston | Brand Primaflow |
Reviews | Reviews | Reviews | Reviews  | Reviews |
Tech Specs | ||||
item weight 35 kg | item weight 0.23 Kilograms | item weight 350 g | item weight - | item weight 49.9 g |
customer reviews4.9 4.9 out of 5 stars 14 ratings 4.9 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 247 ratings 4.5 out of 5 stars | customer reviews 5.0 5.0 out of 5 stars 3 ratings 5.0 out of 5 stars | customer reviews - | customer reviews 4.5 4.5 out of 5 stars 132 ratings 4.5 out of 5 stars |
item package quantity 1 | item package quantity - | item package quantity - | item package quantity - | item package quantity 1 |
batteries required No | batteries required No | batteries required - | batteries required - | batteries required No |
package dimensions- | package dimensions 31.2 x 23.3 x 11.7 cm 230 g | package dimensions 31.1 x 5.8 x 5 cm 350 g | package dimensions - | package dimensions 22.5 x 17.8 x 3.9 cm 49.9 g |
Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1Ariston28% OffAriston VELIS EVO 80L Electric Water Heater, Twin Tank, Shower Ready, Eco Evo, Durable Water Boiler & Hot Water Dispenser, Ideal Electric Heater for Home & Bathroom Heater, Unvented Kit, UK Install
Why we love it
Compact design saves space.
Heats water quickly.
Energy-efficient operation.
Main highlights- Water heater designed and manufactured to be installed in UK
- Ultra slim twin tank design: Ariston’s Velis Evo Wi-Fi electric storage water heaters are conceived with a functional and innovative design that allows the installation of the product even in the tightest spaces
- Supplied with unventend installation kit
- Shower Ready in 50 minutes: Shower-ready alerts are displayed on the front interface which shows when enough water has been heated to have the first shower. Its dual tank technology heats water faster than a traditional cylinder water heater, resulting in enough hot water to take a shower in only 50 minutes
- Eco Evo Function: The innovative ECO EVO function memorises user habits to deliver hot water while saving up to 14Percentage on energy bills. The product operates in compliance with top standards on energy efficiency within the electric water heating category
- Compact Design: With a depth of only 27 cm, the Velis Evo is perfect for installations where space is at a premium
- ABS Safety and Anti-Legionella System for complete peace of mind: A set of functions, including Anti-Overheating, Anti-Freezing and Dry Heating Self-Diagnosis, protect the unit in case of energy or water failures. Dry heating technology within the Velis Evo provides additional safety against short-circuits thanks to the heating elements being encased, thus avoiding direct contact with water. Moreover, Once a month, this efficient water heater automatically increases the water temperature up to 65°C, in order to eliminate the risk of legionella bacteria developing
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9.8
2Best Price Square
IMMERSION HEATER CONTROLLER + BOX IMM24 By APT
Why we love it
Easy to install with clear instructions.
Cost-effective replacement, saving on professional fees.
Durable and reliable, lasting up to 10 years.
Main highlights- Product Type: Immersion Heater
- Immersion Heater Time Switch Ts900 By Timeguard
- Best Price Square Immersion Heater Controller Box Imm24 By Apt
-
9.6
3cantondz
Compatible with Truma Ultrastore Water Heater Element 850w 70020-00270 7002000270 for Caravan/Motorhome comes with Thermostat & O Ring
Main highlights- Replacement heating element compataible with Truma Ultrastore water heater from 2003 onwards
- Reference Part Number of heating element : 70020-00270; This replaces old part number 70010-03000
- Note: For Ultrastore water heater only. Not suitable for Cascade 2 or GE.This element cannot be used to replace a 450w element.
- NOTE: Please check the original manufacturer part number before purchasing to ensure the part is suitable. In case of product damage or receipt of a product that does not correspond to the actual product, please contact us as soon as possible. We actively help you deal with the associated problems.
- Fitments: Compatible with Truma Ultrastore 850W Water Heater Heating Element (240V / 850 WATT) - for Caravan Motorhome
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
