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Electric Instant Water Heater with Digital Display and Wall Mount

£339.95 £99.95 Save 71%
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NOTICE: This product is one of our bestsellers and is already sold out in our physical store. If the “ADD TO BAG” button still works, it means the product is still in stock online in limited quantities.

Get Hot Water Faster with This Tankless Heater

You turn on the tap and stand there waiting while cold water runs down the drain. Every morning feels the same, wasting time and water just to get warm enough for washing. This heater is designed to provide on-demand hot water for sinks, showers, and other point-of-use applications.

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The unit mounts on your wall and connects to standard half inch fittings. Water flows through the heating element when you turn on the tap, warming up in about five seconds. The digital screen shows the current temperature, and you can adjust settings from 68 to 122 degrees.

It runs on 3000 watts at 110 volts and works with water pressure from 0.6 to 175 psi. The unit measures 4.6 by 2.8 by 6.3 inches and weighs 2.2 pounds, fitting in tight spots under sinks or in small bathrooms. The power cable stretches 3.3 feet from the unit to your outlet.

The casing has an IPX4 rating and resists splashes from everyday use. Built in sensors stop the heating element if water stops flowing, preventing damage from dry operation. Leakage and grounding protections add extra safety layers during daily use.

  • FAST HEATING DESIGN: Designed for quick on-demand water heating at point-of-use locations.

  • ADJUSTABLE TEMPERATURE RANGE: Set temperatures anywhere from 68 to 122 degrees using the digital display for washing dishes, hands, or showering.

  • COMPACT WALL MOUNT: Measures just 4.6 by 2.8 by 6.3 inches and weighs 2.2 pounds, installing vertically in bathrooms, kitchens, or utility rooms.

  • ON DEMAND OPERATION: Heats water only when flowing through the unit, reducing standby energy loss compared to storage tank systems running constantly.

  • BUILT IN PROTECTION FEATURES: Includes leakage, grounding, and dry-heating protection features in the unit design.

  • STANDARD FITTING COMPATIBILITY: Designed for use with half inch NPT connections.

  • DIGITAL TEMPERATURE DISPLAY: The built in screen shows real time readings in both degrees, letting you monitor and adjust water temperature without guessing.

  • 3000 WATT POWER OUTPUT: Runs on 110 volt household current for point-of-use water heating.

TANKLESS WATER HEATER SPECS

  • Type: Electric Tankless

  • Power: 3000 Watts

  • Voltage: 110 Volts

  • Temperature Range: 68 to 122 Degrees

  • Pressure Range: 0.6 to 175 PSI

  • Dimensions: 4.6 x 2.8 x 6.3 Inches

  • Weight: 2.2 Pounds

  • Cable Length: 3.3 Feet

  • Rating: IPX4
  • Display: Digital LED

  • Connection: Half Inch NPT

  • Mounting: Wall Vertical

PACKAGE INCLUDES:

  • 1 x Tankless Water Heater Unit

  • 1 x User Manual
4.7 (19.342)
Jack Turner

Confirmation came through straight away, then another email when it was sent. Tracking worked and the parcel arrived when they said it would. Nice and straightforward

Benjamin Foster

Nothing missing and no surprises when I opened the parcel. What turned up matched what I’d seen on the website

Hannah Lewis

Had a look around before buying and this was a fair bit cheaper. Arrived as expected too, so happy with that.

Sophie Bennett

I emailed before ordering because I couldn’t work out which option I needed. Got a proper reply explaining the difference, rather than just a link back to the page I’d already read. Might seem a small thing but it helped me decide. Placed the order that evening and I’m happy with what arrived.

Harry Collins

My first order was only a small one a few months back. That went well, so I checked here when I needed something else. Different sort of purchase this time but everything was just as straightforward. Saved me another evening of looking around!

Daniel Thompson

Ordered Sunday evening and it was here Tuesday morning. Wasn’t expecting that, especially ordering over the weekend

Charlotte Brooks

All arrived, all good 😊

Amelia Scott

Entirely my mistake, I picked the wrong option and only noticed when the confirmation came through. Sent an email and they managed to change it before dispatch. Very relieved I didn’t have to deal with returning it afterwards!

George Wilson

Bought it in the sale. Happy with what I paid and it’s what I was after, which is the main thing.

Grace Mitchell

Hadn’t heard of Havenholt before and wasn’t sure about ordering from somewhere new. Only bought one thing to start with. There was a short wait for dispatch, but they kept me updated and everything arrived as described. Happy with the purchase and I’d be comfortable ordering again.

Emily Carter

There was a mix-up with my order so I had to get in touch. Sent a photo over and they explained what would happen next. Didn’t have to keep repeating myself to different people, which I really appreciated. All sorted now

Samuel Reed

They didn’t have the one I wanted when I went into the shop, but suggested checking online. Managed to order it on the website later that day. Would have preferred to take it home there and then, but this worked out fine.

Information

Our policies

Customer Support

Company name: Havenholt LTD

Address: St Andrew's Street, Cambridge CB2 3BJ, United Kingdom

Email: support@havenholt.com

Phone: +44 1223 302601

Customer Service Hours:
Mon–Fri: 09:00 am–05:00 pm
Sat & Sun: Closed

Response time: Within 24 hours

© 2026 Havenholt

Tankless Instant Water Heater 3000W With Digital Display - Black Wall Mounted For Home Kitchen