Model vs model
Franke Minerva
vs Qettle Signature Modern 4-in-1 (4L)
The Qettle Signature Modern 4-in-1 (4L) lists at £870, £29 less than the Franke Minerva at £899.
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.
For either tap. Free and no obligation.
Qettle
Qettle Signature Modern 4-in-1 (4L)
Square-spout 100°C boiling tap in marine-grade stainless steel
Typical price: £870
Full review →The differences at a glance
- The Qettle Signature Modern 4-in-1 (4L) lists at £870, £29 less than the Franke Minerva at £899.
- Declared idle draw is 12 W for the Franke Minerva against 14 W for the Qettle Signature Modern 4-in-1 (4L), which compounds into the standby cost difference below.
- Tank capacity: 4.7 L on the Franke Minerva versus 4 L on the Qettle Signature Modern 4-in-1 (4L). Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
- The Qettle Signature Modern 4-in-1 (4L) dispenses filtered drinking water; the Franke Minerva 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 Minerva | Qettle Signature Modern 4-in-1 (4L) |
|---|---|---|
| Typical price | £899 | £870✓ |
| Boiling temperature | 100°C | 100°C |
| Tank capacity | 4.7 L | 4 L |
| Idle power | 12 W✓ | 14 W |
| Peak power | 1500 W | 1500 W |
| Flow rate | - | - |
| Filtered water | No | Yes✓ |
| Sparkling water | No | No |
| Chilled water | No | No |
| Filter type | - | Q08 extruded carbon block cartridge |
| Finishes | 2 | 5✓ |
| Warranty | 2 years | 2 years |
| Released | 2018 | 2021 |
Where to buy
Checked manually and dated; the retailer's page is always the live source. Affiliate links, disclosed as such. Commission never changes our comparisons. How affiliate links work here
Franke Minerva
No price-checked retailer offers for this model yet. Get a supply + installation quote instead →
Qettle Signature Modern 4-in-1 (4L)
- Amazon UKCheck price at retailerView ↗
Standby energy
What the idle draw adds up to over a year.
Franke Minerva
- Idle draw
- 12 W
- Standby energy / year
- 105 kWh
- Standby cost / year
- £28
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 Minerva
What we like
- £899 RRP undercuts most 100°C branded competitors
- 4.7L tank capacity highest in the sub-£900 segment
- Genuine 100°C dispense matches premium models
- M-Box install system fits in under 30 minutes for a plumber
Watch out for
- Review Centre reports flow degradation within first year
- No built-in filter (scale build-up in hard-water areas)
- Customer support email-only, no engineer home visits
- Trustpilot mentions boiler failures near warranty expiry
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