Best Electric Tankless Water Heater Deals Online in the UK (10 Deals Found)

Last Updated - 02/05/2026 Sort By:

Best Choice
VeftBltrem

New
Electric Tankless Water Heater, 5.5KW 220V Wall-Mounted Electric Heaters with Shower Head for Bathroom Hot Water Shower
Fast Heating：The power output of this water heater is 5500W, high power to provide fast and efficient heating for your k

£29.99 £36.65
Delousiber

New
Delousiber Instant Water Heater, 6000W 220V Electric Tankless Water Heater, Constant Temperature LED Digital Display, El
【Important Note】This electric water heater has a relatively high power rating and generally requires a dedicated, indepe

£46.99
MRNIU

New
Mrniu Instant Electric Tankless Water Heater Shower Bathroom Bath On Demand 220V 6000W Temperature Automatica Household
[User-Friendly and Convenient] This water heater is designed for effortless operation with both a touch control panel an

£73.00
wowspeed

New
wowspeed 1.5KW Electric Water Heater, 220V 7A Instant Water Heater with Digital Display, Under Sink Tankless Electric Wa
【Instantaneous Water Heater】 Are you still worried about not having enough hot water when washing dishes? Our instantane

£66.99
Best Value
Stiebel Eltron

New
STIEBEL ELTRON DCE-X 10/12 kW Premium Water Heater, Compact Size, tankless, instantaneous, Suitable for Showers, 220/240
APPLICATION: Fully electronically controlled instantaneous water heater for space-saving over-the-sink installation in s

£361.39
Mulcort

New
Mulcort Electric Water Heater 220V 3000W,Instantaneous Tankless Water Heater with LCD Display Indoor Installation,Wall M
✅【Compact and Efficient Design】: Our electric water heater adopts ABS structure and mini design, making it durable, styl

£46.99
Mulcort

Used
Mulcort Electric Water Heater 220V 3000W,Instantaneous Tankless Water Heater with LCD Display Indoor Installation,Wall M
✅【Compact and Efficient Design】: Our electric water heater adopts ABS structure and mini design, making it durable, styl

£42.29
Triton Showers

New
Triton Water Heater SPINSF07MW
[𝗨𝗞'𝗦 𝗟𝗘𝗔𝗗𝗜𝗡𝗚 𝗘𝗟𝗘𝗖𝗧𝗥𝗜𝗖 𝗦𝗛𝗢𝗪𝗘𝗥 𝗕𝗥𝗔𝗡𝗗] 🏆 Established in 1975 Triton has grown to become the

£129.99
BOLTX

New
3000W Instant Electric Water Heater, Mini Tankless Under Sink Water Heater with LED Display, 220V Constant Temperature I
【Instant Hot Water in Seconds – 3000W Power】 Heats cold water to 20–50°C in seconds. Enjoy instant hot water anytime for

£39.99
19% Off
Gxpjycfob

New
Mini Electric Water Heater, 220V 5500W Electric Tankless Water Heater Rapid Heating with LCD Digital Display and Touch B
QUICK HEATING: With a powerful output of 5,500 W, this water heater provides quick and efficient heating (heats up in se

£29.99 £36.99

10 Electric Tankless Water Heater deals are available from: Amazon stores, starting from £29.99.
The biggest discount we found is 19% on Mini Electric Water Heater, 220V 5500W Electric Tankless Water Heater Rapid Heating with LCD Digital Display and Touch Buttons, Tankless Water Heater (D) at Amazon.
The lowest price we found is £29.99 while the highest is £361.39.
Prices for the best Electric Tankless Water Heater deals average at £86.76.
Last updated on May 2, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Electric Tankless Water Heater.