Model vs model
Qettle Signature Modern 4-in-1 (4L)
vs Qettle Signature Modern 4-in-1 (Round Spout, 7L)
The Qettle Signature Modern 4-in-1 (4L) lists at £870, £75 less than the Qettle Signature Modern 4-in-1 (Round Spout, 7L) at £945.
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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Qettle
Qettle Signature Modern 4-in-1 (4L)
Square-spout 100°C boiling tap in marine-grade stainless steel
Typical price: £870
Full review →
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 (4L) lists at £870, £75 less than the Qettle Signature Modern 4-in-1 (Round Spout, 7L) at £945.
- Declared idle draw is 14 W for the Qettle Signature Modern 4-in-1 (4L) 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 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 two taps in a kitchen
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 | Qettle Signature Modern 4-in-1 (4L) | Qettle Signature Modern 4-in-1 (Round Spout, 7L) |
|---|---|---|
| Typical price | £870✓ | £945 |
| Boiling temperature | 100°C | 100°C |
| Tank capacity | 4 L | 7 L |
| Idle power | 14 W✓ | 18 W |
| Peak power | 1500 W | 1700 W |
| Flow rate | - | - |
| Filtered water | Yes | Yes |
| Sparkling water | No | No |
| Chilled water | No | No |
| Filter type | Q08 extruded carbon block cartridge | Q08 extruded carbon block cartridge |
| Finishes | 5 | 5 |
| Warranty | 2 years | 2 years |
| Released | 2021 | 2022 |
Where to buy
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Standby energy
What the idle draw adds up to over a year.
Qettle Signature Modern 4-in-1 (4L)
- Idle draw
- 14 W
- Standby energy / year
- 123 kWh
- Standby cost / year
- £33
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
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
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
Common questions
Qettle Signature Modern 4-in-1 (4L) vs Qettle Signature Modern 4-in-1 (Round Spout, 7L): frequently asked
- What is the difference between the Qettle Signature Modern 4-in-1 (4L) and the Qettle Signature Modern 4-in-1 (Round Spout, 7L)?
- The Qettle Signature Modern 4-in-1 (4L) lists at £870, £75 less than the Qettle Signature Modern 4-in-1 (Round Spout, 7L) at £945. Declared idle draw is 14 W for the Qettle Signature Modern 4-in-1 (4L) 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 L on the Qettle Signature Modern 4-in-1 (4L). Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
- Which is cheaper, the Qettle Signature Modern 4-in-1 (4L) or the Qettle Signature Modern 4-in-1 (Round Spout, 7L)?
- The Qettle Signature Modern 4-in-1 (4L) lists at £870, £75 less than the Qettle Signature Modern 4-in-1 (Round Spout, 7L) at £945.
- Which is better for hard water, the Qettle Signature Modern 4-in-1 (4L) or the Qettle Signature Modern 4-in-1 (Round Spout, 7L)?
- Both have built-in filtration, so both reduce scale in the tank. In a hard water area, plan to replace the cartridge closer to every 6 months rather than 12.
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