Model vs model
Franke Mythos Water Hub 6-in-1
vs Qettle Signature Modern 4-in-1 (Round Spout, 7L)
The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £1,185, £1,740 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
Franke Mythos Water Hub 6-in-1
Hot, cold, filtered, chilled, sparkling and boiling from one spout
UK RRP: £2,925
Full review →
Qettle
Qettle Signature Modern 4-in-1 (Round Spout, 7L)
Higher-capacity 7L boiler for larger households
UK RRP: £1,185
Full review →The differences at a glance
- The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £1,185, £1,740 less than the Franke Mythos Water Hub 6-in-1 at £2,925.
- The Qettle Signature Modern 4-in-1 (Round Spout, 7L) dispenses at 100°C; the Franke Mythos Water Hub 6-in-1 tops out at 98°C.
- Declared idle draw is 18 W for the Qettle Signature Modern 4-in-1 (Round Spout, 7L) against 25 W for the Franke Mythos Water Hub 6-in-1, 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 L on the Franke Mythos Water Hub 6-in-1. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
- The Franke Mythos Water Hub 6-in-1 dispenses sparkling water; the Qettle Signature Modern 4-in-1 (Round Spout, 7L) does not.
- The Franke Mythos Water Hub 6-in-1 dispenses chilled water; the Qettle Signature Modern 4-in-1 (Round Spout, 7L) 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.
| Spec | Franke Mythos Water Hub 6-in-1 | Qettle Signature Modern 4-in-1 (Round Spout, 7L) |
|---|---|---|
| UK RRP | £2,925 | £1,185✓ |
| Boiling temperature | 98°C | 100°C✓ |
| Tank capacity | 4 L | 7 L |
| Idle power | 25 W | 18 W✓ |
| Peak power | 2200 W | 1700 W |
| Flow rate | 2 L/min | - |
| Filtered water | Yes | Yes |
| Sparkling water | Yes✓ | No |
| Chilled water | Yes✓ | No |
| Filter type | Pro M Connect: active carbon + ion-exchange resin | Q08 extruded carbon block cartridge |
| Finishes | 4 | 5✓ |
| Warranty | 2 years | 2 years |
| Released | 2022 | 2022 |
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 (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 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 (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
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