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Water Heaters

Finding the right water heater doesn't have to be complicated. At PriceRunner, we guide you through a wide selection of water heaters to suit your needs. Whether you're after an energy-efficient model or something budget-friendly, our category filters help you narrow down your choices effortlessly. Filter by brand, capacity, or price to find exactly what you need. Compare prices on millions of products from thousands of brands and retailers to ensure you get the best deal. User reviews offer insights into performance and reliability, helping you make the right decision. With our clear and straightforward listings, you can easily see which water heater fits your requirements. Ready to discover the options available to you? Start here to find the water heater that matches your needs and budget. Make your choice with confidence and enjoy the comfort of a well-heated home.

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  • Water Heaters
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500+ products

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Water Heaters Greenzech 3 Seconds Instant Electric Shower Water Heater

Greenzech 3 Seconds Instant Electric Shower Water Heater

£54.99
Or 3 interest-free payments of £18.33/mo.*
1store
Water Heaters Greenzech Smart Boiler Water Heater Switch 240V 20A

Greenzech Smart Boiler Water Heater Switch 240V 20A

Water Heater

£51.26
Or 3 interest-free payments of £17.08/mo.*
1store
Water Heaters Goplushtoy 3000W UK Plug Immersion Water Heater

Goplushtoy 3000W UK Plug Immersion Water Heater

£30.99
Or 3 interest-free payments of £10.33/mo.*
1store
Water Heaters EcoSmart ECO Mini 2.5 2.5 Gallon Water Heater

EcoSmart ECO Mini 2.5 2.5 Gallon Water Heater

£231.97
Or 3 interest-free payments of £77.32/mo.*
1store
Water Heaters Greenzech Smart Boiler Water Heater Switch 240V 20A

Greenzech Smart Boiler Water Heater Switch 240V 20A

Water Heater

£51.26
Or 3 interest-free payments of £17.08/mo.*
1store
Water Heaters Goplushtoy Water Heater 3000W Suspension Immersion Heater Boiler

Goplushtoy Water Heater 3000W Suspension Immersion Heater Boiler

£40.38
Or 3 interest-free payments of £13.46/mo.*
1store
Water Heaters Greenzech 3 Seconds Instant Electric Shower Water Heater

Greenzech 3 Seconds Instant Electric Shower Water Heater

£83.32
Or 3 interest-free payments of £27.77/mo.*
1store
Water Heaters Cosy@home RV Water Heater Anode Rod 34in NPT 235mm

Cosy@home RV Water Heater Anode Rod 34in NPT 235mm

Water Heater

£9.90
Or 3 interest-free payments of £3.30/mo.*
1store
Tlily 220V Instant Water Heater 5500W Wall-Mounted Electric Heaters

Tlily 220V Instant Water Heater 5500W Wall-Mounted Electric Heaters

Water Heater

£57.84
Or 3 interest-free payments of £19.28/mo.*
1store
Greenzech 360 Electric Heater LED Tap Faucet

Greenzech 360 Electric Heater LED Tap Faucet

Water Heater

£64.31
Or 3 interest-free payments of £21.43/mo.*
1store
Greenzech Wall Mount 220V 3000W Electric Faucet

Greenzech Wall Mount 220V 3000W Electric Faucet

Water Heater

£70.16
Or 3 interest-free payments of £23.38/mo.*
1store
Tomtop Jms Instant Water Heater 3500W 220V White

Tomtop Jms Instant Water Heater 3500W 220V White

Water Heater

£48.00
Or 3 interest-free payments of £16.00/mo.*
1store
XYTGOGO Mini Tankless Water Heater

XYTGOGO Mini Tankless Water Heater

Water Heater

£87.17
Or 3 interest-free payments of £29.05/mo.*
1store
XYTGOGO Mini Tankless Water Heater

XYTGOGO Mini Tankless Water Heater

Water Heater

£88.05
Or 3 interest-free payments of £29.35/mo.*
1store
Camco Camco 35713 1/2 Seasonal Water Heater By-Pass Kit

Camco Camco 35713 1/2 Seasonal Water Heater By-Pass Kit

Water Heater

£34.20
Or 3 interest-free payments of £11.40/mo.*
1store
Greenzech 3500W Mini Instant Tankless Electric Shower Hot Water Heater

Greenzech 3500W Mini Instant Tankless Electric Shower Hot Water Heater

Water Heater

£81.86
Or 3 interest-free payments of £27.28/mo.*
1store
Greenzech 3000W Electric Shower Water Heater

Greenzech 3000W Electric Shower Water Heater

Water Heater

£64.31
Or 3 interest-free payments of £21.43/mo.*
1store
Ariston Electric Water Heater Model Velis Pro 100 Liters

Ariston Electric Water Heater Model Velis Pro 100 Liters

Water Heater

£645.24
Or 3 interest-free payments of £215.08/mo.*
1store
Ariston Ceramic Resistance 1000+1500W 60001714 Water Heater

Ariston Ceramic Resistance 1000+1500W 60001714 Water Heater

Water Heater

£56.65
Or 3 interest-free payments of £18.88/mo.*
1store
Ariston Primary Exchanger 65153835-01 Water Heater

Ariston Primary Exchanger 65153835-01 Water Heater

£222.14
Out of stock
Goplushtoy Immersion Water Heater 3000W Electric Element Boiler

Goplushtoy Immersion Water Heater 3000W Electric Element Boiler

£30.22
Or 3 interest-free payments of £10.07/mo.*
1store
Greenzech 3500W 220V Electric Tankless Instant Hot Water Heater

Greenzech 3500W 220V Electric Tankless Instant Hot Water Heater

£112.56
Or 3 interest-free payments of £37.52/mo.*
1store
Rinnai Scale Cutter Water Conditioning System

Rinnai Scale Cutter Water Conditioning System

Water Heater

£232.95
Or 3 interest-free payments of £77.65/mo.*
1store
Aiperq 2000W Immersion Water Heater with Thermometer

Aiperq 2000W Immersion Water Heater with Thermometer

Water Heater

£18.99
Or 3 interest-free payments of £6.33/mo.*
1store
Greenzech 3300W 3s Fast Faucet Heater

Greenzech 3300W 3s Fast Faucet Heater

Water Heater

£93.55
Or 3 interest-free payments of £31.18/mo.*
1store
Hyco Handyflow Electric Vented 5ltr Over Sink Water Heater HF05LQ

Hyco Handyflow Electric Vented 5ltr Over Sink Water Heater HF05LQ

Water Heater

£89.98
Or 3 interest-free payments of £29.99/mo.*
1store
Greenzech 3000W Instant Electric Faucet

Greenzech 3000W Instant Electric Faucet

Water Heater

£96.48
Or 3 interest-free payments of £32.16/mo.*
1store
Whale control panel & loom for gas & electric water heater

Whale control panel & loom for gas & electric water heater

Water Heater

£54.99
Or 3 interest-free payments of £18.33/mo.*
1store
VAILLANT Water Heater S 200 250 300 S L Cylinder Heating Element 0020009871

VAILLANT Water Heater S 200 250 300 S L Cylinder Heating Element 0020009871

Water Heater

£129.33
Or 3 interest-free payments of £43.11/mo.*
1store
Greenzech 3300W 3s Fast Faucet Heater

Greenzech 3300W 3s Fast Faucet Heater

Water Heater

£83.32
Or 3 interest-free payments of £27.77/mo.*
1store
Heatrae Sadia Hotflo 10 Litre Instant Water Heater 50148

Heatrae Sadia Hotflo 10 Litre Instant Water Heater 50148

Water Heater

£440.25
Or 3 interest-free payments of £146.75/mo.*
1store
Greenzech 3000W Instant Electric Faucet

Greenzech 3000W Instant Electric Faucet

Water Heater

£95.01
Or 3 interest-free payments of £31.67/mo.*
1store
Santon Aquarius 10 Litre 3 Kw Vented Undersink Water Heater 94010010

Santon Aquarius 10 Litre 3 Kw Vented Undersink Water Heater 94010010

Water Heater

£299.00
Or 3 interest-free payments of £99.66/mo.*
1store
Greenzech Instant Hot Water Faucet Heater

Greenzech Instant Hot Water Faucet Heater

Water Heater

£48.23
Or 3 interest-free payments of £16.07/mo.*
1store
Show Me Your Mumu Led Electric Tankless Water Heater Faucet 3000W

Show Me Your Mumu Led Electric Tankless Water Heater Faucet 3000W

Water Heater

£41.99
Or 3 interest-free payments of £13.99/mo.*
1store
Show Me Your Mumu Electric Faucet Instantaneous Water Heater

Show Me Your Mumu Electric Faucet Instantaneous Water Heater

Water Heater

£48.99
Or 3 interest-free payments of £16.33/mo.*
1store
Goplushtoy Mini Water Heaters 6500W Electric Instant Tankless

Goplushtoy Mini Water Heaters 6500W Electric Instant Tankless

Water Heater

£89.53
Or 3 interest-free payments of £29.84/mo.*
1store
Ariston Replacement For Water Heater 60001040

Ariston Replacement For Water Heater 60001040

Water Heater

£64.30
Or 3 interest-free payments of £21.43/mo.*
1store
Show Me Your Mumu Mini Water Heater 5500W IPX4 Waterproof

Show Me Your Mumu Mini Water Heater 5500W IPX4 Waterproof

Water Heater

£70.99
Or 3 interest-free payments of £23.66/mo.*
1store
Heatrae Sadia Hotflo 10 Litre Instant Water Heater 50148

Heatrae Sadia Hotflo 10 Litre Instant Water Heater 50148

Water Heater

£513.29
Or 3 interest-free payments of £171.09/mo.*
1store
Whale Water Heater 8L Gas Overheat Stat Caravan AK1213

Whale Water Heater 8L Gas Overheat Stat Caravan AK1213

Water Heater

£37.95
Or 3 interest-free payments of £12.65/mo.*
1store
Eccotemp Luxé 10 LPM Portable Outdoor Tankless Water Heater 30 mbar

Eccotemp Luxé 10 LPM Portable Outdoor Tankless Water Heater 30 mbar

Water Heater

£252.07
Or 3 interest-free payments of £84.02/mo.*
1store
Eccotemp Natural 0 1.85 LPM 49.5cm H X 32.4cm W X 17.8cm
-18%

Eccotemp Natural 0 1.85 LPM 49.5cm H X 32.4cm W X 17.8cm

Water Heater

£236.47£289.00
Or 3 interest-free payments of £78.82/mo.*
1store
EcoSmart Smart Multifunctional Optical Time Domain Reflectometer Fiber Tester
-12%

EcoSmart Smart Multifunctional Optical Time Domain Reflectometer Fiber Tester

£595.71£675.14
Or 3 interest-free payments of £198.57/mo.*
1store
Artibetter Electric Tankless Instant Hot Water Heater 4500W

Artibetter Electric Tankless Instant Hot Water Heater 4500W

£58.74
Or 3 interest-free payments of £19.58/mo.*
1store
Ariston Ariston Lower Bottom Heater Element 1300w

Ariston Ariston Lower Bottom Heater Element 1300w

£31.45
Or 3 interest-free payments of £10.48/mo.*
1store
Heatrae Sadia Boss Unvented Thermostat 95612719

Heatrae Sadia Boss Unvented Thermostat 95612719

Water Heater, Volume 35L

£73.17
Or 3 interest-free payments of £24.39/mo.*
1store
WATER HEATERS

FAQ

Water heaters are appliances that heat water for domestic use. The main types include storage tank, tankless, heat pump, and solar water heaters. Each type offers different benefits. Consider your space, energy efficiency preferences, and budget when choosing.

Water heaters are selected based on household size and hot water usage. For a family of four, a 50-gallon (approx. 190 liters) storage tank is usually sufficient. Evaluate your daily hot water needs to find the perfect fit.

Water heaters with tanks store hot water for immediate use, while tankless models heat water on demand. Tankless options save space and energy but might have higher upfront costs. Consider installation space and budget when deciding.

Water Heaters: 3 things to consider before buying

When choosing a water heater, it's essential to think about the size and capacity that will best suit your household needs. A larger family will require a water heater with a bigger tank to ensure everyone has access to hot water. For example, a family of four might need a 50-gallon water heater, whereas a couple may only need a 30-gallon one. Measure your space accurately before purchasing to ensure the water heater fits comfortably in its designated area.

Energy efficiency is crucial for reducing both your carbon footprint and energy bills. Look for water heaters with high energy ratings or those that are Energy Star certified. These models often use less electricity or gas, which saves you money in the long run. Consider investing in tankless water heaters, which heat water on demand and can be more efficient than traditional models with storage tanks.

Familiarize yourself with the various types of water heaters available on the market to make an informed decision. Common types include storage tank heaters, tankless (on-demand) heaters, heat pump heaters, and solar-powered heaters. Each type has its pros and cons depending on factors like initial cost, installation complexity, and long-term savings. For instance, while solar-powered heaters can significantly reduce energy costs, they may have higher upfront expenses and depend on sunlight availability.

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Find the ideal water heater for your home

Choosing the right water heater is crucial for comfort and efficiency in your home. Whether you're considering 400V models or exploring popular brands, understanding your options can help you make the right decision.

Voltage options: 230V vs 400V

When selecting a water heater, voltage is an important factor. A 230V unit is often suitable for smaller households or apartments. It is easy to install and typically requires less power. On the other hand, a 400V system is ideal for larger homes or commercial spaces. It can provide more power and efficiency, making it a good choice for those with higher water demands.

Leading brands

Several brands stand out in the water heater market. Stiebel Eltron is known for its innovative designs and energy-efficient models. They offer a range of options to suit different needs. Ariston is another popular brand, offering reliable and stylish units. Their products often feature advanced technology for enhanced performance. Greenzech is also a good choice for those seeking eco-friendly solutions, with a focus on sustainability and efficiency.

Key features to consider

When selecting a water heater, consider the volume capacity. Smaller units, like those with a volume of 15L, are suitable for limited use or single-person households. A larger volume, such as 50L, is better for families or homes with multiple bathrooms. Many models now come with a digital display, allowing you to monitor and adjust the temperature easily. This feature can enhance convenience and help you save energy.

Installation and materials

Installation is a significant factor in choosing a water heater. Some units are designed for easy installation, while others may require professional help. Consider the materials used in the heater's construction. Stainless steel is a popular choice due to its durability and resistance to corrosion. This can extend the lifespan of the heater and ensure consistent performance.

Energy efficiency and cost savings

Energy efficiency is crucial when choosing a water heater. Look for models with high energy ratings to reduce your electricity bills over time. Many modern heaters are designed to heat water quickly and maintain temperature efficiently, which can lead to significant cost savings.

Usage and maintenance

Understanding how you plan to use the water heater can guide your choice. For instance, if you need consistent hot water for showers, a larger capacity model might be necessary. Regular maintenance is also important to ensure the longevity of the unit. Follow manufacturer guidelines for cleaning and servicing to keep it running smoothly.

Selecting the right water heater involves considering several factors, including voltage, brand, capacity, and features. Use PriceRunner to compare all offers and find the best deal on a water heater that meets your needs.

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