boilingwatertap.

Model vs model

Franke Omni
vs Zip HydroTap Classic

The Franke Omni lists at £1,199, £3,166 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.

FO

Franke

Franke Omni

4-in-1: boiling, filtered, hot, cold

UK RRP: £1,199

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 Franke Omni lists at £1,199, £3,166 less than the Zip HydroTap Classic at £4,365.
  • The Franke Omni dispenses at 100°C; the Zip HydroTap Classic tops out at 99°C.
  • Declared idle draw is 12 W for the Franke Omni against 35 W for the Zip HydroTap Classic, which compounds into the standby cost difference below.
  • Tank capacity: 4.2 L on the Franke Omni versus 4 L on the Zip HydroTap Classic. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
  • The Zip HydroTap Classic dispenses sparkling water; the Franke Omni does not.
  • The Zip HydroTap Classic dispenses chilled water; the Franke Omni does not.

Full specification, side by side

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

Franke Omni vs Zip HydroTap Classic specifications from manufacturer datasheets
SpecFranke OmniZip HydroTap Classic
UK RRP£1,199£4,365
Boiling temperature100°C99°C
Tank capacity4.2 L4 L
Idle power12 W35 W
Peak power1500 W2000 W
Flow rate--
Filtered waterYesYes
Sparkling waterNoYes
Chilled waterNoYes
Filter typeFranke 08 filter cartridgeZip GlobalPlus 0.2 micron filter
Finishes45
Warranty3 years3 years
Released20232021

Standby energy

What the idle draw adds up to over a year.

Franke Omni

Idle draw
12 W
Standby energy / year
105 kWh
Standby cost / year
£28

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

Franke Omni

What we like

  • True 100°C confirmed in Trusted Reviews testing
  • Built-in filter delivers chilled filtered water without add-on
  • Spout body stays cool even during prolonged dispensing
  • 4.2L tank larger than most rivals under £1,200

Watch out for

  • Filter cartridges cost roughly £80 every 6-9 months
  • Owners report flow slowdown after 2 years in hard-water areas
  • Heating tank replacement reported at around £400 out of warranty
  • Low mains pressure (under 1.5 bar) causes noticeable dribble

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