boilingwatertap.

Model vs model

Quooker Flex
vs Zip HydroTap Classic

The Quooker Flex lists at £1,295, £3,070 less than the Zip HydroTap Classic at £4,365.

Every number below comes from the manufacturers' own specification sheets. We highlight which tap leads on each spec; what matters most for your kitchen is your call.

Quooker Flex boiling water tap with pull-out hose in chrome

Quooker

Quooker Flex

Pull-out hose meets boiling water

UK RRP: £1,295

Full review →
Zip HydroTap Classic chrome tap with boiling and chilled buttons

Zip Water

Zip HydroTap Classic

Boiling, chilled, sparkling, filtered

UK RRP: £4,365

Full review →

The differences at a glance

  • The Quooker Flex lists at £1,295, £3,070 less than the Zip HydroTap Classic at £4,365.
  • The Quooker Flex dispenses at 100°C; the Zip HydroTap Classic tops out at 99°C.
  • Declared idle draw is 10 W for the Quooker Flex against 35 W for the Zip HydroTap Classic, which compounds into the standby cost difference below.
  • Tank capacity: 4 L on the Zip HydroTap Classic versus 3 L on the Quooker Flex. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
  • The Zip HydroTap Classic dispenses filtered drinking water; the Quooker Flex does not.
  • The Zip HydroTap Classic dispenses sparkling water; the Quooker Flex does not.
  • The Zip HydroTap Classic dispenses chilled water; the Quooker Flex does not.
  • The Quooker Flex ships with a 7-year warranty; the Zip HydroTap Classic with a 3-year warranty.

Full specification, side by side

Sourced from manufacturer datasheets. A tick marks the better number on specs where more or less is objectively better.

Quooker Flex vs Zip HydroTap Classic specifications from manufacturer datasheets
SpecQuooker FlexZip HydroTap Classic
UK RRP£1,295£4,365
Boiling temperature100°C99°C
Tank capacity3 L4 L
Idle power10 W35 W
Peak power1600 W2000 W
Flow rate--
Filtered waterNoYes
Sparkling waterNoYes
Chilled waterNoYes
Filter typeActive carbon filter inside the tankZip GlobalPlus 0.2 micron filter
Finishes65
Warranty7 years3 years
Released20232021

Standby energy

What the idle draw adds up to over a year.

Quooker Flex

Idle draw
10 W
Standby energy / year
88 kWh
Standby cost / year
£24

Zip HydroTap Classic

Idle draw
35 W
Standby energy / year
307 kWh
Standby cost / year
£83

Assumes the manufacturer's declared idle wattage around the clock at £0.27/kWh (UK average, mid-2026). Real usage adds the energy to heat the water you actually draw. Run your own numbers in the running cost calculator.

Strengths and trade-offs

Quooker Flex

What we like

  • Pull-out hose rinses sinks plus full 100°C boiling
  • Same vacuum-insulated tank delivers true boiling water
  • Magnetic dock returns hose neatly after use
  • Boiling flow auto-locks when hose is detached from base

Watch out for

  • £1,295 RRP matches Fusion despite extra moving parts
  • Trustpilot owners report hose fraying within several years
  • Hose replacement is a paid call-out, not 5-min DIY
  • Requires 500mm depth + 200mm width clear undersink space

Zip HydroTap Classic

What we like

  • Filtered boiling, chilled and sparkling from one tap
  • Touchscreen with PIN protection and energy-saving sleep modes
  • 0.2 micron NSF-certified filter included as standard
  • Largest UK engineer network for service and maintenance

Watch out for

  • £4,365 RRP is several times rival 4-in-1 prices
  • Installation around £520 extra on top of hardware
  • Ongoing CO2 canister costs for sparkling function
  • Designed primarily for commercial use, residential overkill