Advertising Disclosure Ariston Velis Evo 45 L Comparison - July 2025
3 Best Ariston Velis Evo 45 L 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  9.8Exceptional | 2  9.7Exceptional | 3 Best Value  9.5Excellent |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelAriston VELIS EVO 45L 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 Ariston PRO1 ECO 80 L Electric Storage Water Heater, Inclusive Of Unvented Kit, B Class Erp Rating, Waterplus Technology, Titanshield Technology, Manufactured To Be Installed In UK - 3820020. , White | Model Ariston VELIS EVO WIFI 45L Electric Water Heater, Twin Tank Technology, B Class ErP, Aqua Ariston Net App, Ideal Electric Heater for Home & Bathroom Heater, Water Boiler, Unvented Kit, UK Install |
BrandAriston | Brand Ariston | Brand Ariston |
Reviews | Reviews | Reviews  |
Tech Specs | ||
product dimensions 50.6 x 27.5 x 77.6 cm 20 kg | product dimensions 47 x 48 x 81 cm 29.6 kg | product dimensions 50.6 x 50.6 x 77.6 cm 29.4 kg |
item weight 20 kg | item weight 29.6 kg | item weight 29.4 kg |
included components 12L expansion vessel, combination valve, discharge tundish, instruction manual, warranty certificate | included components 12L expansion vessel, combination valve, discharge tundish, instruction manual, warranty certificate | included components 12L expansion vessel, combination valve, discharge tundish, instruction manual, warranty certificate |
item package quantity 1 | item package quantity 1 | item package quantity 1 |
size 45 Litre | size 80 Litre | size 45 L |
customer reviews4.9 4.9 out of 5 stars 14 ratings 4.9 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 27 ratings 4.6 out of 5 stars | customer reviews 4.3 4.3 out of 5 stars 22 ratings 4.3 out of 5 stars |
batteries required No | batteries required No | batteries required No |
color White, Black | color White | color Brushed Metal |
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
9.8
1AristonAriston VELIS EVO 45L 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 ideal for tight spaces.
Eco Evo function saves on energy bills.
Quick heating; shower-ready in 50 minutes.
Main highlights- “Eco Evo” Function: The innovative ECO EVO function memorises user habits to deliver hot water while saving up to 14% on energy bills. The product operates in compliance with top standards on energy efficiency within the electric water heating category.
- 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.
- 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. This also results in increased protection against limescale and quick replacement of the heating elements without draining the tank.
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9.7
2Ariston15% Off
Ariston PRO1 ECO 80 L Electric Storage Water Heater, Inclusive Of Unvented Kit, B Class Erp Rating, Waterplus Technology, Titanshield Technology, Manufactured To Be Installed In UK - 3820020. , White
Main highlights- “Eco Evo” Function: The innovative ECO EVO function memorises user habits to deliver hot water while saving up to 14% on energy bills. The product operates in compliance with top standards on energy efficiency within the electric water heating category.
- WaterPlus patented technology: Ariston's groundbreaking WaterPlus technology keeps the incoming cold water at the bottom of the tank, reducing the mix with stored hot water, for up to 16% more hot water availability.
- Water heater designed and manufactured to be installed in UK.
- Total Safety: Pro 1 water heaters have passed all safety tests necessary to meet the standards required by EC directives. The ABS safety package offers protection for both the product and its users. Furthermore, the included Anti Legionella system performs a complete cycle of heating to a temperature of 65° C to sanitize and remove any bacteria present in the accumulated water.
- TitanShield technology for tank protection: The inner surface of the tank is enamelled with a layer of titanium, an anti-corrosion and rust-resistant material, which prevents the surface from corroding, even when in contact with warm water. Titanium’s natural properties are boosted by the action of a large magnesium anode that stops the oxidation reactions on the tank’s inner surface, prolonging the life of the water heater.
- Suitable to any space: Pro1, with a width of only 35,3 cm, has been designed to fit any space. The innovative installation kit allows the replacement of the boiler (of the same dimensions) without having to drill the wall again.
- Ideal Installations: 1-2 Bedroom Properties Small Hospitality & Retail Units Cylinder Replacement Installations
- Fully UKCA certified to be installed in the UK Market.
-
9.5
3Ariston25% Off
Ariston VELIS EVO WIFI 45L Electric Water Heater, Twin Tank Technology, B Class ErP, Aqua Ariston Net App, Ideal Electric Heater for Home & Bathroom Heater, Water Boiler, Unvented Kit, UK Install
Why we love it
Saves energy
Easy to use
Hot water on demand
Main highlights- Smart Connectivity: Features Wi-Fi connectivity for remote management through the Aqua Ariston Net app, allowing easy adjustments and real-time monitoring for up to 25% energy savings.
- Quick Heating Time: Ready to provide hot water in less than 30 minutes, perfect for busy homes.
- Ideal installations: 1 Bedroom Properties Loft Conversions Cylinder Replacement Installations.
- Fully UKCA certified to be installed in the UK Market.
- Full Control at Your Fingertips: Receive notifications on your device when water is hot, and adjust temperatures and settings via your smartphone for maximum convenience.
- Complete Installation Kit Included: Comes with everything needed for setup, including a 12L expansion vessel, tundish, and pressure reducing valve, specifically designed for compliance with UK regulations and KIWA certified.
- Compact Design: Ultra-slim twin tank technology, only 27 cm deep, offers a space-saving solution without compromising on water availability.
- Awarded "Best Hot Water Innovation" in the Green Home Awards 2021.
- ABS Safety and Anti-Legionella System: A set of functions, including Anti-Overheating, Anti-Freezing and Dry Heating Self-Diagnosis, protect the unit in case of energy or water failures. 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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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.