boilingwatertap.

Model vs model

Franke Mythos Water Hub 6-in-1
vs Qettle Signature Modern 4-in-1 (4L)

The Qettle Signature Modern 4-in-1 (4L) lists at £1,110, £1,815 less than the Franke Mythos Water Hub 6-in-1 at £2,925.

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.

Franke Mythos Water Hub 6-in-1 tap with under-sink unit

Franke

Franke Mythos Water Hub 6-in-1

Hot, cold, filtered, chilled, sparkling and boiling from one spout

UK RRP: £2,925

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

Qettle

Qettle Signature Modern 4-in-1 (4L)

Square-spout 100°C boiling tap in marine-grade stainless steel

UK RRP: £1,110

Full review →

The differences at a glance

  • The Qettle Signature Modern 4-in-1 (4L) lists at £1,110, £1,815 less than the Franke Mythos Water Hub 6-in-1 at £2,925.
  • The Qettle Signature Modern 4-in-1 (4L) dispenses at 100°C; the Franke Mythos Water Hub 6-in-1 tops out at 98°C.
  • Declared idle draw is 14 W for the Qettle Signature Modern 4-in-1 (4L) against 25 W for the Franke Mythos Water Hub 6-in-1, which compounds into the standby cost difference below.
  • The Franke Mythos Water Hub 6-in-1 dispenses sparkling water; the Qettle Signature Modern 4-in-1 (4L) does not.
  • The Franke Mythos Water Hub 6-in-1 dispenses chilled water; the Qettle Signature Modern 4-in-1 (4L) 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 Mythos Water Hub 6-in-1 vs Qettle Signature Modern 4-in-1 (4L) specifications from manufacturer datasheets
SpecFranke Mythos Water Hub 6-in-1Qettle Signature Modern 4-in-1 (4L)
UK RRP£2,925£1,110
Boiling temperature98°C100°C
Tank capacity4 L4 L
Idle power25 W14 W
Peak power2200 W1500 W
Flow rate2 L/min-
Filtered waterYesYes
Sparkling waterYesNo
Chilled waterYesNo
Filter typePro M Connect: active carbon + ion-exchange resinQ08 extruded carbon block cartridge
Finishes45
Warranty2 years2 years
Released20222021

Standby energy

What the idle draw adds up to over a year.

Franke Mythos Water Hub 6-in-1

Idle draw
25 W
Standby energy / year
219 kWh
Standby cost / year
£59

Qettle Signature Modern 4-in-1 (4L)

Idle draw
14 W
Standby energy / year
123 kWh
Standby cost / year
£33

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 Mythos Water Hub 6-in-1

What we like

  • Six functions from one tap: boiling, chilled, ambient and sparkling plus hot and cold mains
  • All-in-one under-sink unit houses boiler, chiller, CO2 bottle and filter
  • 12-month filter interval with built-in RFID replacement reminder
  • Pro M Connect filter adds ion-exchange limescale protection

Watch out for

  • Sparkling capacity is 0.6 litres per fill, with a CO2 cylinder to replace
  • Spout swivel is limited to 180 degrees
  • Personalised settings need the Franke Home App
  • Two-year warranty

Qettle Signature Modern 4-in-1 (4L)

What we like

  • 4-litre tank serves up to 8 cups in one go
  • Marine-grade stainless steel tap, engineered in the UK
  • Two-stage child safety: button and turn before boiling water flows
  • Choice of round or square spout in stainless, PVD colour or etched finishes

Watch out for

  • 17.5-minute initial heat-up and 10-minute recovery after a full tank
  • Standard kit does not include a pressure reducing valve
  • Two-year warranty