Instant On-Demand Heating

Enjoy continuous instant hot water the exact second you turn on your tap.

Engineered specifically for British kitchens, utility rooms, outbuildings, and secondary bathrooms, TankePex delivers endless on-demand hot water between 30°C and 55°C without the bulk of a storage tank. Maximise cupboard storage and cut standby energy expenditure today.

Before

Without TankePex

  • Wasting litres of cold water waiting for your main boiler to reach the tap
  • High energy bills from heating massive water cylinders that sit idle all day
  • Bulky immersion tanks cluttering cupboards and taking up vital under-sink storage
  • Struggling with freezing cold water in utility rooms, workshops, or garden annexes
After

With TankePex

  • Instant, reliable hot water in just 10 seconds via a 3000W cast aluminium element
  • Efficient on-demand heating that only consumes power when you run the tap
  • Compact 210 × 150mm design fitting neatly inside small cupboards or under basins
  • Precise digital LED temperature control (30°C–55°C) with wireless remote convenience
3000W Rapid Heating Power
10 Sec On-Demand Response
IPX4 Splashproof Housing
30–55°C Precision Range
Advanced Engineering

Intelligent Tankless Heating Engineered for British Homes.
Instant warmth, total electrical safety, and effortless temperature control.

3000W Cast Aluminium Element for 10-Second Warmth

3000W Cast Aluminium Element for 10-Second Warmth

Never wait for hot water again. TankePex utilizes a high-performance 3000W cast aluminium heating element that heats water continuously as it flows through, delivering instant hot water in just 10 seconds without limescale-prone internal coils.

  • Rapid on-demand heating eliminates the wait for distant central boilers
  • Cast aluminium core provides superior thermal conductivity and corrosion resistance
  • Tankless design prevents stagnant water buildup and limescale accumulation

Digital LED Touch Panel & Wireless Remote Control

Dial in your ideal water temperature with pinpoint accuracy. The crisp digital LED display and touch controls allow seamless adjustment from 30°C to 55°C, while the bundled wireless remote makes changing settings effortless even when installed in tight cupboards.

  • Fine-tune water warmth between 30°C and 55°C to suit washing or kitchen prep
  • Real-time LED digital temperature readout ensures safe, predictable water warmth
  • Handy wireless remote control allows easy adjustment from across the worktop
Digital LED Touch Panel & Wireless Remote Control
Compact 210 × 150mm Under-Sink Footprint

Compact 210 × 150mm Under-Sink Footprint

Reclaim your under-sink storage space. Measuring just 210 × 150mm with a sleek white profile, TankePex fits neatly into tight spaces beneath kitchen sinks, basin vanity units, utility cupboards, or garage workbenches.

  • Slim, space-saving profile preserves valuable under-counter storage
  • Clean white finish blends discreetly into modern British kitchens and bathrooms
  • Ideal for downstairs WCs, garden studios, utility rooms, and mobile homes

Six-Layer Safety Shield & IPX4 Splash Protection

Built for peace of mind in damp domestic settings. TankePex features an IPX4 splashproof casing and an integrated six-layer safety matrix including water-electricity isolation, dry-heating cut-off, pressure relief, and automatic leakage protection.

  • Water and electricity isolation prevents electrical hazards during continuous use
  • Automated dry-heating cutoff and pressure protection safeguard internal components
  • IPX4 water-resistant housing withstands splashes and moisture in humid areas
Six-Layer Safety Shield & IPX4 Splash Protection
Straightforward Setup

Get Instant Hot Water in 3 Simple Steps.

Designed for clean and versatile installation. TankePex integrates seamlessly into your existing cold water feed and electrical supply with standard UK fittings.

1

Mount Under the Sink

Secure the compact 210 × 150mm unit to the wall or cupboard interior near your water supply using the included mounting hardware.

2

Connect Plumbing & UK Power

Attach your cold water inlet and hot water outlet lines, then connect the standard UK power lead to a suitable electrical connection.

3

Set Your Ideal Temperature

Turn on your tap and use the front LED touch screen or wireless remote to set your exact desired water temperature between 30°C and 55°C.

Order Your TankePex Water Heater Today
Water Heater Comparison

Why UK homeowners choose TankePex over bulky traditional cylinders.

Standard hot water cylinders consume massive cupboard space and burn electricity keeping water warm 24/7, while cheap immersion rods lack precise temperature control and safety shutoffs. TankePex combines 3000W on-demand heating, LED touch control, and multi-layer safety.

Swipe to compare
Key Feature
TankePex Instant Heater TOP RATED UK TANKLESS HEATER
Traditional Storage Cylinders
Basic Immersion Rods
Heating Speed 10-Second rapid on-demand warmth 15-30 minutes to heat full cylinder Slow, inconsistent warming
Energy Efficiency
Temperature Control Digital LED touch & wireless remote (30-55°C) Fixed thermostat, no remote Manual dial or uncalibrated heat
Cupboard Space Used
Electrical Safety
Water Resistance Rating
Hot Water Capacity Continuous on-demand flow Limited to tank storage volume
Limescale & Rust Risk Cast aluminium, tankless anti-scale Prone to heavy sediment buildup Corrodes rapidly in hard water
Total Investment
£124 (50% Off Promo) £248
£400 - £800+ (High install & running cost) £60 - £90 (Poor safety, short lifespan)
3000W Cast Aluminium Element
10 Sec Instant Warmth
IPX4 Splashproof Shield
UK Customer Reviews
4.9 out of 5 /5

Based on 1,280+ verified UK customer reviews

5★
89%
4★
8%
3★
2%
2★
1%
1★
0%
99% Recommend

Based on verified UK purchases

@oliver_bristol
@oliver_bristol
@sophie_manchester
@sophie_manchester
@liam_edinburgh
@liam_edinburgh
@charlotte_london
@charlotte_london
@george_leeds
@george_leeds
@hannah_cardiff
@hannah_cardiff

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"We fitted the TankePex under our kitchen sink in our Victorian terrace in London. Before, we waited over two minutes for hot water from the loft boiler. Now we get piping hot water in around 10 seconds. The remote control mounted on the wall is an absolute dream."

OW
Oliver W. London, UK

"Installed this in our downstairs cloakroom and utility area in Manchester. It takes up barely any space under the basin compared to our previous water heater. The LED screen is sharp and clear, and setting the temp to 42°C is perfect for handwashing without scalding."

SM
Sophie M. Manchester, UK

"I built a garden workshop in Edinburgh and needed warm water for washing hands and cleaning tools during freezing winters. TankePex was easy to install, heats up instantly, and doesn't waste electricity keeping a tank warm all night. Brilliant piece of kit."

LR
Liam R. Edinburgh, UK
4.9/5 Average UK Customer Rating
99% Would Recommend to Friends & Family
18K+ Happy UK Homes & Workspaces
24hr Dedicated UK Customer Care

30-Day Total Satisfaction Guarantee

Try the TankePex Instant Water Heater in your kitchen, cloakroom, or utility room for 30 full days. If you are not completely satisfied with its rapid heating, compact size, and energy savings, return it for a prompt, hassle-free refund.

Rapid 10-Second Hot Water with 3000W Power
Dedicated UK Support & Fast Tracked Delivery
IPX4 Splashproof & Six-Layer Safety Protection
Frequently Asked Questions

Got Questions? We Have Answers

Upgrade to Instant, On-Demand Hot Water with TankePex

Join thousands of British households, workshops, and offices enjoying instant hot water, lower energy waste, and reclaimed cupboard space. Order your TankePex Water Heater today with 50% off and free tracked UK delivery.

Claim Your 50% Off Today
Free Tracked UK Delivery
30-Day Money-Back Guarantee
4.9/5 UK Customer Rating