boilingwatertap.

Model vs model

Franke Omni
vs Qettle Signature Modern 4-in-1 (Round Spout, 7L)

The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £945, £254 less than the Franke Omni at £1,199.

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.

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Franke

Franke Omni

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

Typical price: £1,199

Full review →
Qettle Signature Modern 4-in-1 boiling water tap with 7 litre tank

Qettle

Qettle Signature Modern 4-in-1 (Round Spout, 7L)

Higher-capacity 7L boiler for larger households

Typical price: £945

Full review →

The differences at a glance

  • The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £945, £254 less than the Franke Omni at £1,199.
  • Declared idle draw is 12 W for the Franke Omni against 18 W for the Qettle Signature Modern 4-in-1 (Round Spout, 7L), which compounds into the standby cost difference below.
  • Tank capacity: 7 L on the Qettle Signature Modern 4-in-1 (Round Spout, 7L) versus 4.2 L on the Franke Omni. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
  • The Franke Omni ships with a 3-year warranty; the Qettle Signature Modern 4-in-1 (Round Spout, 7L) with a 2-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.

Franke Omni vs Qettle Signature Modern 4-in-1 (Round Spout, 7L) specifications from manufacturer datasheets
SpecFranke OmniQettle Signature Modern 4-in-1 (Round Spout, 7L)
Typical price£1,199£945
Boiling temperature100°C100°C
Tank capacity4.2 L7 L
Idle power12 W18 W
Peak power1500 W1700 W
Flow rate--
Filtered waterYesYes
Sparkling waterNoNo
Chilled waterNoNo
Filter typeFranke 08 filter cartridgeQ08 extruded carbon block cartridge
Finishes45
Warranty3 years2 years
Released20232022

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

Qettle Signature Modern 4-in-1 (Round Spout, 7L)

Idle draw
18 W
Standby energy / year
158 kWh
Standby cost / year
£43

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 filtered cold 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 £50 every 6 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

Qettle Signature Modern 4-in-1 (Round Spout, 7L)

What we like

  • 7-litre tank serves up to 14 cups in one go, sized for larger households
  • Four separate waterways and no electronic components in the tap
  • Two-stage child safety: button and turn before boiling water flows
  • Marine-grade stainless steel tap, engineered in the UK

Watch out for

  • 20-minute initial heat-up and 15-minute recovery after a full tank
  • Two-year warranty

Get a supply and installation quote for the Franke Omni or Qettle Signature Modern 4-in-1 (Round Spout, 7L)

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