• Sale
  • Blogs
  • About us
  • Sale
Home & Interior
Home Appliances
  1. Start
  2. Do it yourself
  3. Heating & Plumbing
  4. Water Heaters

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.

Try flexible payments withKlarnaLearn how

Filter
  • Water Heaters
Product Properties
Power Source
Measures

500+ products

Show as table
Water Heaters iplusmile 3500W Tankless Electric Water Heater Set

iplusmile 3500W Tankless Electric Water Heater Set

£46.84
Or 3 interest-free payments of £15.61/mo.*
1store
Water Heaters B&Q Instant Water Heater 220V 4600W

B&Q Instant Water Heater 220V 4600W

£44.99
Or 3 interest-free payments of £14.99/mo.*
1store
Water Heaters InSinkErator Neotank Instant Hot Water Tank

InSinkErator Neotank Instant Hot Water Tank

£249.00
Or 3 interest-free payments of £83.00/mo.*
1store
Water Heaters B&Q Ariston Kit 2 Litre Expansion Vessel Water Heater

B&Q Ariston Kit 2 Litre Expansion Vessel Water Heater

£30.49
Or 3 interest-free payments of £10.16/mo.*
1store
Water Heaters iplusmile Universal Water Heater 7.00x6.00x6.00cm White

iplusmile Universal Water Heater 7.00x6.00x6.00cm White

£10.25
Or 3 interest-free payments of £3.41/mo.*
1store
Water Heaters Totority Instant Water Heater Electric Tankless With Plug

Totority Instant Water Heater Electric Tankless With Plug

£75.30
Or 3 interest-free payments of £25.10/mo.*
1store
Water Heaters Ohphcall Safety Relief Valve For Electric Water Heater

Ohphcall Safety Relief Valve For Electric Water Heater

£32.58
Or 3 interest-free payments of £10.86/mo.*
1store
Water Heaters Exogio Electric Instant Hot Heater with Digital Display

Exogio Electric Instant Hot Heater with Digital Display

Water Heater

£39.51
Or 3 interest-free payments of £13.17/mo.*
1store
Tesy 80 Litre Hot Water Cylinder Electric Bilight

Tesy 80 Litre Hot Water Cylinder Electric Bilight

£264.99
Or 3 interest-free payments of £88.33/mo.*
1store
Tesy Bilight 80 With Internal Heat Exhanger Left Handed

Tesy Bilight 80 With Internal Heat Exhanger Left Handed

£299.99
Or 3 interest-free payments of £99.99/mo.*
1store
Saudism Fast Heating Mixing Faucet Digital Display

Saudism Fast Heating Mixing Faucet Digital Display

£21.96
Or 3 interest-free payments of £7.32/mo.*
1store
Aihontai Electric Water Heater Kai Digital Faucet

Aihontai Electric Water Heater Kai Digital Faucet

£55.84
Or 3 interest-free payments of £18.61/mo.*
1store
Spactz HE90240 Heating Element for Electric Water Heater
-21%

Spactz HE90240 Heating Element for Electric Water Heater

£16.53£20.82
Or 3 interest-free payments of £5.51/mo.*
1store
MagicSan Boiler Bellislimo Wifi 100L Elektro Warmwasser Speicher

MagicSan Boiler Bellislimo Wifi 100L Elektro Warmwasser Speicher

£469.99
Or 3 interest-free payments of £156.66/mo.*
1store
MagicSan Bellislimo Wi-Fi 80 Litre Unvented Electric Hot Water Boiler

MagicSan Bellislimo Wi-Fi 80 Litre Unvented Electric Hot Water Boiler

£429.99
Or 3 interest-free payments of £143.33/mo.*
1store
Thermex Digital 30-V 30 Litres Boiler WiFi

Thermex Digital 30-V 30 Litres Boiler WiFi

£179.00
Or 3 interest-free payments of £59.66/mo.*
1store
Sans Marque Immersion 2500W Electric Bucket Heater

Sans Marque Immersion 2500W Electric Bucket Heater

Water Heater

£15.06
Or 3 interest-free payments of £5.02/mo.*
1store
Sans Marque 4500W Instant Water Heater EU Plug

Sans Marque 4500W Instant Water Heater EU Plug

Water Heater

£35.14
Or 3 interest-free payments of £11.71/mo.*
1store
Mistral 921197 Water Heater Sur-évier Electric Vertical Wall 10L

Mistral 921197 Water Heater Sur-évier Electric Vertical Wall 10L

Water Heater

£129.65
Or 3 interest-free payments of £43.21/mo.*
1store
Goplushtoy Electric Water Heater Instant Tankless Under Sink Tap 3000W

Goplushtoy Electric Water Heater Instant Tankless Under Sink Tap 3000W

£45.99
Or 3 interest-free payments of £15.33/mo.*
1store
Goplushtoy 5500W Electric Instant Water Heater

Goplushtoy 5500W Electric Instant Water Heater

£84.13
Or 3 interest-free payments of £28.04/mo.*
1store
Tlily 3Pack RV Water Heater Anode Rod & Flush Wand - 9.25 Inch L x 3/4 Inch NPT Aluminum Anode Rod

Tlily 3Pack RV Water Heater Anode Rod & Flush Wand - 9.25 Inch L x 3/4 Inch NPT Aluminum Anode Rod

£18.75
Or 3 interest-free payments of £6.25/mo.*
1store
Goplushtoy Instant Water Heater 3000W

Goplushtoy Instant Water Heater 3000W

£88.34
Or 3 interest-free payments of £29.44/mo.*
1store
Goplushtoy Instant Tankless Mini Electric Water Heater 3000W

Goplushtoy Instant Tankless Mini Electric Water Heater 3000W

£88.34
Or 3 interest-free payments of £29.44/mo.*
1store
Greenzech Electric Hot Water Faucet 220V

Greenzech Electric Hot Water Faucet 220V

£102.53
Or 3 interest-free payments of £34.17/mo.*
1store
Whale Rapid Heat Gas & Electric Water Heater

Whale Rapid Heat Gas & Electric Water Heater

Water Heater

£699.00
Or 3 interest-free payments of £233.00/mo.*
1store
Wijas Perfect 35 Instant Water Heater

Wijas Perfect 35 Instant Water Heater

Water Heater

£134.99
Or 3 interest-free payments of £44.99/mo.*
1store
Goplushtoy 3000W Electric Tankless Water Heater

Goplushtoy 3000W Electric Tankless Water Heater

£64.50
Or 3 interest-free payments of £21.50/mo.*
1store
Melitt 220V Instant Water Heater 5500W Wall-Mounted Electric Heaters

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

Water Heater

£61.20
Or 3 interest-free payments of £20.40/mo.*
1store
Amosfun 4 Boxes Diy Acrylic Beads

Amosfun 4 Boxes Diy Acrylic Beads

£33.09
Or 3 interest-free payments of £11.03/mo.*
1store
Greenzech 3KW Instant Hot Water Tap Electric Faucet Heater

Greenzech 3KW Instant Hot Water Tap Electric Faucet Heater

£108.17
Or 3 interest-free payments of £36.05/mo.*
1store
Kikidex Electric Immersion Water Heater Boiler 2000W

Kikidex Electric Immersion Water Heater Boiler 2000W

£26.73
Or 3 interest-free payments of £8.91/mo.*
1store
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
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
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
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: 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.

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.

You’ve viewed 45 out of 687 products

2

4

6

...

11

...

15

Advertisement

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.

Shop smarter with PriceRunner

Find the best option with the help of our handy tools. Compare prices, apply smart filters, read user reviews, and explore price history—all in one place.

Filter and sort

Searching for something particular? Filter by everything from price and brand to material or colour to see only the products relevant to you. Since delivery options and shipping costs can vary between shops, you can easily find your perfect match by filtering based on these criteria as well.

Reviews: See what other users think

Reviews from other users can provide valuable insights into the product's features and durability. Product ratings help you quickly assess popularity and customer satisfaction.

Price history: Find real deals

To ensure that you've found a good deal, you can view the product's price history. Select a time period and whether you wish to include international prices. Price history for the past three months is shown by default, but you can also look into a longer time period. If you want to determine if a deal from a specific shop is as good as it seems you can click on "Choose store" above the price graph to show an individual shop's pricing history.

PriceRunner
  • About us
  • Contact us
  • Newsroom
  • Job openings

Since 1999, PriceRunner has helped millions of visitors find the best products at the best prices.

PriceRunner is entirely independent and free to use. Our vision is to be your go-to site that you can always count on when comparing products and prices. PriceRunner became a part of Klarna 2022.

You can compare prices and products with us in:

Sweden, Denmark, The UK, Norway, USA, Germany, Austria, Finland, France, Ireland, Italy, Netherlands, Spain

Copyright 1999-2026 Klarna Technologies AB