boilingwatertap.

Model vs model

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

The Qettle Signature lists at £549, £636 less than the Qettle Signature Modern 4-in-1 (Round Spout, 7L) at £1,185.

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.

Qettle Signature Modern 4-in-1 boiling water tap

Qettle

Qettle Signature

Compact 4-in-1 for smaller kitchens

UK RRP: £549

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

UK RRP: £1,185

Full review →

The differences at a glance

  • The Qettle Signature lists at £549, £636 less than the Qettle Signature Modern 4-in-1 (Round Spout, 7L) at £1,185.
  • Declared idle draw is 11 W for the Qettle Signature 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 2 L on the Qettle Signature. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.

Full specification, side by side

Sourced from manufacturer datasheets. A tick marks the better number on specs where more or less is objectively better.

Qettle Signature vs Qettle Signature Modern 4-in-1 (Round Spout, 7L) specifications from manufacturer datasheets
SpecQettle SignatureQettle Signature Modern 4-in-1 (Round Spout, 7L)
UK RRP£549£1,185
Boiling temperature100°C100°C
Tank capacity2 L7 L
Idle power11 W18 W
Peak power1300 W1700 W
Flow rate--
Filtered waterYesYes
Sparkling waterNoNo
Chilled waterNoNo
Filter typeQ08 extruded carbon block cartridgeQ08 extruded carbon block cartridge
Finishes35
Warranty2 years2 years
Released20232022

Standby energy

What the idle draw adds up to over a year.

Qettle Signature

Idle draw
11 W
Standby energy / year
96 kWh
Standby cost / year
£26

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

What we like

  • Compact 2L tank fits tighter under-sink cabinets
  • Hits 100°C boiling matching premium-brand temperatures
  • Slimmer £549 entry into the Qettle range
  • Trustpilot reviewers cite responsive UK customer service

Watch out for

  • 2L tank delivers only 3 mugs per fill in practice
  • Some users note aggressive water release on dispense
  • Handle can slip into filter mode accidentally
  • Same 2-year warranty inherits Original reliability concerns

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