Best Water Storage Heater of 2026

Last updated on 03/04/2026

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Ariston 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

Ariston 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

Ariston

Why we love it

Ultra-slim, space-saving design.
Faster heating with twin-tank technology.
Intelligent energy-saving features.

Main Highlights

Water heater designed and manufactured to be installed in UK
Compact Design: With a depth of only 27 cm, the Velis Evo is perfect for installations where space is at a premium
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
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
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
Supplied with unventend installation kit

9.8

Exceptional

9.8

Exceptional

Ariston

Ariston 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

Ultra-slim, space-saving design.
Faster heating with twin-tank technology.
Intelligent energy-saving features.

Main Highlights

Water heater designed and manufactured to be installed in UK
Compact Design: With a depth of only 27 cm, the Velis Evo is perfect for installations where space is at a premium
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
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
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
Supplied with unventend installation kit

Value for Money

Ariston PRO1 ECO 100 L Electric Storage Water Heater, Inclusive Of Unvented Kit, B class ErP Rating, WaterPlus Tecnology, Titanshield Tecnology, Manufactured to be installed in UK - 3820021.

Ariston PRO1 ECO 100 L Electric Storage Water Heater, Inclusive Of Unvented Kit, B class ErP Rating, WaterPlus Tecnology, Titanshield Tecnology, Manufactured to be installed in UK - 3820021.

Ariston

Why we love it

Energy-efficient with ECO EVO function.
Innovative WaterPlus and TitanShield tech.
Compact design, fits anywhere.

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.
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.
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.
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.

Ariston PRO1 ECO 100 L Electric Storage Water Heater, Inclusive Of Unvented Kit, B class ErP Rating, WaterPlus Tecnology, Titanshield Tecnology, Manufactured to be installed in UK - 3820021.

Why we love it

Energy-efficient with ECO EVO function.
Innovative WaterPlus and TitanShield tech.
Compact design, fits anywhere.

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.
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.
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.
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.

Ariston PRO1 ECO 50 L Electric Storage Water Heater with A 50 L, Inclusive Of Unvented Kit, B Class Erp Rating, Waterplus Technology, Manufactured To Be Installed In UK - 3820019. , White

Ariston PRO1 ECO 50 L Electric Storage Water Heater with A 50 L, Inclusive Of Unvented Kit, B Class Erp Rating, Waterplus Technology, Manufactured To Be Installed In UK - 3820019. , White

Ariston

3% Off

Why we love it

Saves energy with Eco Evo.
Provides more hot water.
Ensures total safety.

Main Highlights

Water heater designed and manufactured to be installed in UK.
“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.
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.
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.
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.

Ariston PRO1 ECO 50 L Electric Storage Water Heater with A 50 L, Inclusive Of Unvented Kit, B Class Erp Rating, Waterplus Technology, Manufactured To Be Installed In UK - 3820019. , White

3% Off

Why we love it

Saves energy with Eco Evo.
Provides more hot water.
Ensures total safety.

Main Highlights

Water heater designed and manufactured to be installed in UK.
“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.
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.
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.
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.

STIEBEL ELTRON DCE-X 10/12 kW Premium Water Heater, Compact Size, tankless, instantaneous, Suitable for Showers, 220/240 V, Precise Temperature Output, oversink Installation, 238159

STIEBEL ELTRON DCE-X 10/12 kW Premium Water Heater, Compact Size, tankless, instantaneous, Suitable for Showers, 220/240 V, Precise Temperature Output, oversink Installation, 238159

Stiebel Eltron

Why we love it

Energy efficiency at its best.
Accurate temperature delivery always.
Easy and efficient operation.

Main Highlights

APPLICATION: Fully electronically controlled instantaneous water heater for space-saving over-the-sink installation in showers, kitchens or on sinks in utility rooms
CONVENIENCE FEATURES: Straightforward operation and accurate temperature control to the exact degree via a large, backlit multifunction display; Two temperature memory keys (memory function)
ENERGY SAVING: Always accurate water temperature thanks to 4i technology; Power saving mode due to optional ECO function
SAFETY: The multi stage safety concept comprises a high limit temperature switch, sensor controlled monitoring of the heating element and detection of air bubbles, effectively protecting the appliance
INSTALLATION: Quick and easy installation using the improved PROFI-RAPID installation system; The power cable is prepared for the power connection as standard

STIEBEL ELTRON DCE-X 10/12 kW Premium Water Heater, Compact Size, tankless, instantaneous, Suitable for Showers, 220/240 V, Precise Temperature Output, oversink Installation, 238159

Why we love it

Energy efficiency at its best.
Accurate temperature delivery always.
Easy and efficient operation.

Main Highlights

APPLICATION: Fully electronically controlled instantaneous water heater for space-saving over-the-sink installation in showers, kitchens or on sinks in utility rooms
CONVENIENCE FEATURES: Straightforward operation and accurate temperature control to the exact degree via a large, backlit multifunction display; Two temperature memory keys (memory function)
ENERGY SAVING: Always accurate water temperature thanks to 4i technology; Power saving mode due to optional ECO function
SAFETY: The multi stage safety concept comprises a high limit temperature switch, sensor controlled monitoring of the heating element and detection of air bubbles, effectively protecting the appliance
INSTALLATION: Quick and easy installation using the improved PROFI-RAPID installation system; The power cable is prepared for the power connection as standard

Eldom Spectra 80L Electric Storage Water Heater, 2kW Vertical Boiler with Safety Valve, Enamelled Tank, Mechanical Thermostat & Energy Class C | Durable Hot Water Cylinder for Home & Office Use

Eldom Spectra 80L Electric Storage Water Heater, 2kW Vertical Boiler with Safety Valve, Enamelled Tank, Mechanical Thermostat & Energy Class C | Durable Hot Water Cylinder for Home & Office Use

Eldom

Why we love it

Ample 80 litre storage capacity.
Efficient 2 kW power usage.
Compact, easily accommodatable dimensions.

Main Highlights

SMART WIFI CONTROL & TFT DISPLAY: Easily manage your hot water heater via the MyELDOM smartphone app (iOS & Android). The digital colour TFT display allows precise temperature control, timer settings, and real-time monitoring for convenience and energy efficiency.
LARGE CAPACITY & HIGH PERFORMANCE: Provides approximately 120 litres of mixed hot water at 37°C – ideal for small to medium households. With 2000W heating power and 230V operation, enjoy quick heatup times and consistent performance for daily use.
ENERGY-EFFICIENT DESIGN (CLASS B): Built with CFC-free, high-density polyurethane foam insulation (40mm thick) to minimise heat loss and reduce running costs. Rated Energy Class B, ensuring lower electricity consumption and optimal thermal efficiency.
ADVANCED SAFETY & SMART FUNCTIONS: Includes Anti-Legionella, Anti-Freeze, and Smart energy-saving functions. Features delayed start mode (up to 24 hours) and 7 programmable timers to adapt to your lifestyle while maintaining safety and hygiene.
QUALITY BUILD – MADE IN THE EU: Constructed with premium materials for durability and long service life. Comes with intake/safety valve, operates at 8 bar max pressure, and includes a cable and plug for easy installation. Compact vertical design fits most bathrooms.

Eldom Spectra 80L Electric Storage Water Heater, 2kW Vertical Boiler with Safety Valve, Enamelled Tank, Mechanical Thermostat & Energy Class C | Durable Hot Water Cylinder for Home & Office Use

Why we love it

Ample 80 litre storage capacity.
Efficient 2 kW power usage.
Compact, easily accommodatable dimensions.

Main Highlights

SMART WIFI CONTROL & TFT DISPLAY: Easily manage your hot water heater via the MyELDOM smartphone app (iOS & Android). The digital colour TFT display allows precise temperature control, timer settings, and real-time monitoring for convenience and energy efficiency.
LARGE CAPACITY & HIGH PERFORMANCE: Provides approximately 120 litres of mixed hot water at 37°C – ideal for small to medium households. With 2000W heating power and 230V operation, enjoy quick heatup times and consistent performance for daily use.
ENERGY-EFFICIENT DESIGN (CLASS B): Built with CFC-free, high-density polyurethane foam insulation (40mm thick) to minimise heat loss and reduce running costs. Rated Energy Class B, ensuring lower electricity consumption and optimal thermal efficiency.
ADVANCED SAFETY & SMART FUNCTIONS: Includes Anti-Legionella, Anti-Freeze, and Smart energy-saving functions. Features delayed start mode (up to 24 hours) and 7 programmable timers to adapt to your lifestyle while maintaining safety and hygiene.
QUALITY BUILD – MADE IN THE EU: Constructed with premium materials for durability and long service life. Comes with intake/safety valve, operates at 8 bar max pressure, and includes a cable and plug for easy installation. Compact vertical design fits most bathrooms.

Eldom Spectra 50-Litre Electric Water Heater - 1.5kW, Vertical Mount, Manual Thermostat, Energy Efficient Storage Boiler, Fast Heating Enamel Tank | 230V | White

Eldom Spectra 50-Litre Electric Water Heater - 1.5kW, Vertical Mount, Manual Thermostat, Energy Efficient Storage Boiler, Fast Heating Enamel Tank | 230V | White

eldom

13% Off

Why we love it

Energy-efficient consumption.
Compact and space-saving.
User-friendly illuminated switch.

Main Highlights

Efficient Hot Water Storage – The Eldom Spectra 50L Electric Water Heater provides reliable and consistent hot water for medium-sized households, ideal for kitchens, bathrooms, or utility rooms.
Powerful 1.5kW Heating Element – Enjoy quick water heating and consistent temperature thanks to the durable 1.5kW element and mechanical thermostat control for precise adjustments.
Energy Efficient & Well Insulated – Advanced polyurethane foam insulation reduces heat loss, saving on energy bills while maintaining optimal water temperature (Energy Class C).
Durable Enamel-Coated Tank – Long-lasting inner steel tank with enamel coating for corrosion resistance and extended lifespan, includes magnesium anode protection.
Compact Vertical Design – Space-saving white cylinder design (595 x 435 x 457 mm) with illuminated ON/OFF switch, ideal for wall mounting in compact areas.

Eldom Spectra 50-Litre Electric Water Heater - 1.5kW, Vertical Mount, Manual Thermostat, Energy Efficient Storage Boiler, Fast Heating Enamel Tank | 230V | White

13% Off

Why we love it

Energy-efficient consumption.
Compact and space-saving.
User-friendly illuminated switch.

Main Highlights

Efficient Hot Water Storage – The Eldom Spectra 50L Electric Water Heater provides reliable and consistent hot water for medium-sized households, ideal for kitchens, bathrooms, or utility rooms.
Powerful 1.5kW Heating Element – Enjoy quick water heating and consistent temperature thanks to the durable 1.5kW element and mechanical thermostat control for precise adjustments.
Energy Efficient & Well Insulated – Advanced polyurethane foam insulation reduces heat loss, saving on energy bills while maintaining optimal water temperature (Energy Class C).
Durable Enamel-Coated Tank – Long-lasting inner steel tank with enamel coating for corrosion resistance and extended lifespan, includes magnesium anode protection.
Compact Vertical Design – Space-saving white cylinder design (595 x 435 x 457 mm) with illuminated ON/OFF switch, ideal for wall mounting in compact areas.

Ariston ANDRIS R 10 L Undersink Electric Water Heater, 2kW Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100863.

Ariston ANDRIS R 10 L Undersink Electric Water Heater, 2kW Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100863.

Ariston

Why we love it

Optimized comfort and energy saving.
Enhanced durability with titanium tank.
Precise water temperature adjustment.

Main Highlights

Water heater designed and manufactured to be installed in UK
Â€œBâ€ class ErP rating
Economy' setting on the dial to optimise comfort and energy saving
Titanium enamelled tank for durability: This premium quality water heater the best tank protection with the properties of titanium, wich constitutes a perfect shield against corrosion. Every single component is developed to ensure longlasting high performance with the guarantee of Ariston Brand
Maximum Comfort: Andris series products are able to keep the water hot for a long time thanks to the thick high-density polyurethane insulation placed in the tank and the outside of the water heater. It provides an effective barrier against heat losses, optimizing both the performance of the product and the usersâ€ comfort. The models of the Andris series are equipped with an immersion thermostat, which allows a very precise adjustment of the water temperature, heating it to the desired point
Installation kits to be purchased separately

Ariston ANDRIS R 10 L Undersink Electric Water Heater, 2kW Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100863.

Why we love it

Optimized comfort and energy saving.
Enhanced durability with titanium tank.
Precise water temperature adjustment.

Main Highlights

Water heater designed and manufactured to be installed in UK
Â€œBâ€ class ErP rating
Economy' setting on the dial to optimise comfort and energy saving
Titanium enamelled tank for durability: This premium quality water heater the best tank protection with the properties of titanium, wich constitutes a perfect shield against corrosion. Every single component is developed to ensure longlasting high performance with the guarantee of Ariston Brand
Maximum Comfort: Andris series products are able to keep the water hot for a long time thanks to the thick high-density polyurethane insulation placed in the tank and the outside of the water heater. It provides an effective barrier against heat losses, optimizing both the performance of the product and the usersâ€ comfort. The models of the Andris series are equipped with an immersion thermostat, which allows a very precise adjustment of the water temperature, heating it to the desired point
Installation kits to be purchased separately

Ariston AURES Multi Electric Instantaneous Water Heater 9.5kW, Multi-Point, Compact Size, ELCB System, User-Friendly and A Energy Rated. Manufactured to be Installed in UK – 3195216.

Ariston AURES Multi Electric Instantaneous Water Heater 9.5kW, Multi-Point, Compact Size, ELCB System, User-Friendly and A Energy Rated. Manufactured to be Installed in UK – 3195216.

Ariston

8% Off

Why we love it

Award-winning design and innovation.
Ensures total user safety.
Highly space-saving and efficient.

Main Highlights

Instant electric water heater designed and produced for installation in the UK. Awarded the Good Design Award in 2019
Multi-Point: Aures Multi can supply multiple outlets with hot water (not simultaneously) upon point of use. New Italian premium design
Total Safety: Its Double Pole Earth Leakage Circuit Breaker (ELCB) prevents electric shocks, integrating with a total safety device system that avoids damage to the product. If a dangerous voltage is detected, the device will interrupt the electrical circuit as a safety measure.
Small Size: Aures Multi saves space, no pre-heat time or water storage space required. Aures Multi is ideal for installations in small, narrow spaces like utility rooms, garages, conservatories, kitchens, and bathrooms.
Quick Comfort: The Aures Multi electric instantaneous water heater delivers hot water within seconds due to its effective heating element which heats water instantly.
Easy to Use: Aures Multi includes a user-friendly frontal dial and LED lights which make the product setup incredibly simple. Because of its flow sensor system, the product works only when a tap is open.
Highly Energy Efficient: The product offers a super efficient performance, lower energy usage and emissions, which give it an 'A' class ErP rating. Its 4-step frontal & intuitive power dial can be set to the level the user wants. Aures Multi is incredibly easy to maintain as all internal components can be accessed through the front.

Ariston AURES Multi Electric Instantaneous Water Heater 9.5kW, Multi-Point, Compact Size, ELCB System, User-Friendly and A Energy Rated. Manufactured to be Installed in UK – 3195216.

8% Off

Why we love it

Award-winning design and innovation.
Ensures total user safety.
Highly space-saving and efficient.

Main Highlights

Instant electric water heater designed and produced for installation in the UK. Awarded the Good Design Award in 2019
Multi-Point: Aures Multi can supply multiple outlets with hot water (not simultaneously) upon point of use. New Italian premium design
Total Safety: Its Double Pole Earth Leakage Circuit Breaker (ELCB) prevents electric shocks, integrating with a total safety device system that avoids damage to the product. If a dangerous voltage is detected, the device will interrupt the electrical circuit as a safety measure.
Small Size: Aures Multi saves space, no pre-heat time or water storage space required. Aures Multi is ideal for installations in small, narrow spaces like utility rooms, garages, conservatories, kitchens, and bathrooms.
Quick Comfort: The Aures Multi electric instantaneous water heater delivers hot water within seconds due to its effective heating element which heats water instantly.
Easy to Use: Aures Multi includes a user-friendly frontal dial and LED lights which make the product setup incredibly simple. Because of its flow sensor system, the product works only when a tap is open.
Highly Energy Efficient: The product offers a super efficient performance, lower energy usage and emissions, which give it an 'A' class ErP rating. Its 4-step frontal & intuitive power dial can be set to the level the user wants. Aures Multi is incredibly easy to maintain as all internal components can be accessed through the front.

Ariston Andris Elite WiFi 15l Water Heater Under Sink 4012006 2.5kw White for Sink hot Water heaters

Ariston Andris Elite WiFi 15l Water Heater Under Sink 4012006 2.5kw White for Sink hot Water heaters

Ariston

18% Off

Why we love it

Smart control via WiFi.
Safe and reliable operation.
Energy-saving Eco functions.

Main Highlights

WiFi compatibility for smart control; ideal for those looking for an electric water heater or a hot water heater with advanced remote management for everyday use and energy saving
Anti-legionella function for total peace of mind; this feature makes the ariston water heater safe and reliable
Eco Evo and Boost functions for energy saving and maximum availability of hot water; suitable for small spaces that require a water heater for sink
Electronic temperature regulation for precise control; ideal for customising your hot water heater in the kitchen, bathroom or utility room
Soft touch buttons for intuitive use; they improve the user experience and make it easier to manage your electric water heater in a practical way.

Ariston Andris Elite WiFi 15l Water Heater Under Sink 4012006 2.5kw White for Sink hot Water heaters

18% Off

Why we love it

Smart control via WiFi.
Safe and reliable operation.
Energy-saving Eco functions.

Main Highlights

WiFi compatibility for smart control; ideal for those looking for an electric water heater or a hot water heater with advanced remote management for everyday use and energy saving
Anti-legionella function for total peace of mind; this feature makes the ariston water heater safe and reliable
Eco Evo and Boost functions for energy saving and maximum availability of hot water; suitable for small spaces that require a water heater for sink
Electronic temperature regulation for precise control; ideal for customising your hot water heater in the kitchen, bathroom or utility room
Soft touch buttons for intuitive use; they improve the user experience and make it easier to manage your electric water heater in a practical way.

Ariston ANDRIS R 15 Litre Undersink Electric Water Heater 2kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100864

Ariston ANDRIS R 15 Litre Undersink Electric Water Heater 2kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100864

Ariston

Why we love it

Optimized comfort and energy saving.
Provides longtime high performance.
Precise water temperature adjustment.

Main Highlights

Water heater designed and manufactured to be installed in UK
“B” class ErP rating
Economy' setting on the dial to optimise comfort and energy saving
Titanium enamelled tank for durability: This premium quality water heater the best tank protection with the properties of titanium, wich constitutes a perfect shield against corrosion. Every single component is developed to ensure longlasting high performance with the guarantee of Ariston Brand.
Maximum Comfort: Andris series products are able to keep the water hot for a long time thanks to the thick high-density polyurethane insulation placed in the tank and the outside of the water heater. It provides an effective barrier against heat losses, optimizing both the performance of the product and the users’ comfort. The models of the Andris series are equipped with an immersion thermostat, which allows a very precise adjustment of the water temperature, heating it to the desired point.
Installation kits to be purchased separately

Ariston ANDRIS R 15 Litre Undersink Electric Water Heater 2kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100864

Why we love it

Optimized comfort and energy saving.
Provides longtime high performance.
Precise water temperature adjustment.

Main Highlights

Water heater designed and manufactured to be installed in UK
“B” class ErP rating
Economy' setting on the dial to optimise comfort and energy saving
Titanium enamelled tank for durability: This premium quality water heater the best tank protection with the properties of titanium, wich constitutes a perfect shield against corrosion. Every single component is developed to ensure longlasting high performance with the guarantee of Ariston Brand.
Maximum Comfort: Andris series products are able to keep the water hot for a long time thanks to the thick high-density polyurethane insulation placed in the tank and the outside of the water heater. It provides an effective barrier against heat losses, optimizing both the performance of the product and the users’ comfort. The models of the Andris series are equipped with an immersion thermostat, which allows a very precise adjustment of the water temperature, heating it to the desired point.
Installation kits to be purchased separately

We scanned 150 products

We reviewed these offers relevant to the Water Storage 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 Ariston, Stiebel Eltron, Eldom, eldom, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Water Storage Heater in the market, we considered we took a deep dive into 751 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 Ariston 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. We love many things about this product by Ariston. What sets it apart from the competition is Ultra-slim, space-saving design. , Faster heating with twin-tank technology. , Intelligent energy-saving features.
The best value product for most shoppers and where user satisfaction is continuously the highest is Ariston PRO1 ECO 100 L Electric Storage Water Heater, Inclusive Of Unvented Kit, B class ErP Rating, WaterPlus Tecnology, Titanshield Tecnology, Manufactured to be installed in UK - 3820021. by Ariston based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Water Storage Heater and the best cost-to-value ratio is Ariston Andris Elite WiFi 15l Water Heater Under Sink 4012006 2.5kw White for Sink hot Water heatersat Ariston with a 18% discount.
Our list of the best Water Storage 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.