The 10 best tankless water heaters to buy in the UK
Finding the best tankless water heater system for your home can help save a lot of money in energy bills, although knowing what to look for in a heating system can be challenging for anyone that isn’t a plumber. Given the cost of paying for a new heating system, you will want to put a lot of thought and consideration into your decision, which is not always easy if you are unfamiliar with what a tankless water heater is and how to choose the right one for your home.
To help with this, we have created a handy buying guide that covers all the information that you need to know to find the best tankless water heaters for your home.
What are tankless water heaters?
As the name suggests, a tankless water heater is a type of water heating system that does not use a large water tank to store heated water. Instead, cold water passes through a pipe and into the heating unit, which uses either a gas burner or electric element to instantly heat the water. Whenever you turn on hot water, you instantly get a constant supply as there is no need to wait for a tank to fill with heated water. Therefore, a good tankless water heater makes hot water very convenient and energy-efficient.
Why should you buy a good tankless water heater?
One of the major benefits of using tankless water heaters is reduced energy consumption. Because there is no tank to fill and store with hot water, it can help to reduce water heating bills. Furthermore, while the initial cost of installation is higher than a tanked water heater, the best tankless water heaters are much more durable so will last significantly longer. This means you can save money over the long term, making it a fantastic investment for many homeowners.
How to choose the right tankless water heater in 2024?
Choosing a new tankless water heater can be daunting for those unfamiliar with water heating systems. So here are some things to consider that can make the process easier:
- Hot Water Consumption: You need to determine how much hot water you consume daily so that you can select a tankless water heater that meets the demand. Simply list all the fixtures in your home that use hot water at any time (e.g. faucet, shower head, dishwasher) and combine their flow rates. To check flow rate, simply refer to the manufacturer instructions for any fixture you’ve bought or check online for a rough estimate of each fixture.
- Temperature Rise: This refers to the temperature that the heater uses to warm incoming water to the desired temperature. To calculate, you need to determine the average temperature of incoming water and subtract from the desired incoming temperature.
- Power Source: A tankless water heater is either gas-powered or electric, so consider which is best for your needs. Electric is suitable for smaller water heaters designed for point of use (e.g. heating water for just the shower), while gas-powered water heaters are best for an entire household’s water heating.
What is the best kind of tankless water heater in the UK?
There are two main types of tankless water heaters available to buy:
- Gas-powered Tankless Water Heaters: Gas-powered systems are more powered and the most used, being the best tankless water heater for an entire household. However, you need to ensure that appropriate piping is in place and consider its location relative to where the heater will go, otherwise extensive installation work may be necessary.
- Electric Tankless Water Heaters: Electrically powered systems are only recommended for point of use rather than a whole household, as it puts too much strain on the electrical supply when forced to heat too much water. It is more affordable to install, however.
Top 10 list of tankless water heaters in the UK (2024)
The bestseller list compares brands and their tankless water heaters. Which tankless water heater is the best?
- POINT of USEThe sleek tankless water heater is compact as an oatmeal box, making…
- SAFE and DURABLEApplied with multiple protection devices, every piece goes through…
- CONVENIENT USEThe tankless water heater comes with digital display & touch control…
- Simple Installation1/2-Inch Water heater connector. In order to install whole house…
- Safety Insurance & Longer LifeOur tankless electric hot water heater 9KW are…
- Saver Energy & SpaceWater is only heated when you need it, not stored in a hot…
- Easy InstallationComing with multi-language user's manual, it's easy to…
- Multiple Security Protection Smart protection functions protect the product from…
- Save Energy and Time Equipped with the latest integral cast aluminum heating technology,…
- PLEASE NOTE- Please verify that this BE211S is the right size for your hot water…
- ENERGY SAVING & ECO MODE- Compact structure with 11.5% energy saving technology.…
- MULTIPLE PROTECTION CONFIGURATIONS- Flame failure protection will cut gas supply…
- Versatile Applications - This gas water heater outdoor is designed to meet a range…
- Convenient Wall-Mounted Design - Our tankless water heater features a portable design…
- Energy Efficiency and Customization - Our 18L lpg water heater offers both summer…
- Caution:This water heater needs to be connected to an air switch, not directly to…
- Safer to use:The product itself comes with multiple safety protections: anti-leakage…
- Easy to Install: The body of the hot water heater is small and does not take up space.…
- Safer to use: Instant electric hot water heater have a variety of safety protection…
- 360° Free Installation: The body of the hot water heater is small and does not…
- Easy to operate: The temperature can be adjusted by remote control and touch. Equipped…
- Widely ApplicationSuitable for kitchen sink, shower, hand washing, dishes washing…
- Caution MeasuresVertical installation only, no horizontal installation allowed. Before…
- LED IndicatorLED screen to show power and heating status. With the high heating power…
- Drain plug is applied to drain off the entire water content when it is not used for…
- A fuel pipe with 110mm diametre is needed to be connected additionally if the LPG…
- Perfect for domestic hot shower, garden gas shower and horse shower in farm.
- [Wide Range of Applications] Standard international G 1/2" pipe connection in…
- [Instant Hot Water] The water heater uses a 3KW heating system, the tankless electric…
- [LCD Digital Touch Screen] The water heater has an LCD screen for a clear view of…
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