boilingwatertap.

Model vs model

Qettle Signature Modern 4-in-1 (4L)
vs Quooker Fusion Round

The Qettle Signature Modern 4-in-1 (4L) lists at £1,110, £185 less than the Quooker Fusion Round at £1,295.

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 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 →
Quooker Fusion Round boiling water tap in polished chrome

Quooker

Quooker Fusion Round

The iconic all-in-one in modern round form

UK RRP: £1,295

Full review →

The differences at a glance

  • The Qettle Signature Modern 4-in-1 (4L) lists at £1,110, £185 less than the Quooker Fusion Round at £1,295.
  • Declared idle draw is 10 W for the Quooker Fusion Round against 14 W for the Qettle Signature Modern 4-in-1 (4L), which compounds into the standby cost difference below.
  • Tank capacity: 4 L on the Qettle Signature Modern 4-in-1 (4L) versus 3 L on the Quooker Fusion Round. 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 Quooker Fusion Round does not.
  • The Quooker Fusion Round ships with a 7-year warranty; the Qettle Signature Modern 4-in-1 (4L) with a 2-year warranty.

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 Modern 4-in-1 (4L) vs Quooker Fusion Round specifications from manufacturer datasheets
SpecQettle Signature Modern 4-in-1 (4L)Quooker Fusion Round
UK RRP£1,110£1,295
Boiling temperature100°C100°C
Tank capacity4 L3 L
Idle power14 W10 W
Peak power1500 W1600 W
Flow rate--
Filtered waterYesNo
Sparkling waterNoNo
Chilled waterNoNo
Filter typeQ08 extruded carbon block cartridgeActive carbon filter inside the tank
Finishes57
Warranty2 years7 years
Released20212022

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

Quooker Fusion Round

Idle draw
10 W
Standby energy / year
88 kWh
Standby cost / year
£24

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

Quooker Fusion Round

What we like

  • True 100°C delivery verified in T3 independent review
  • Vacuum-insulated tank consumes ~10W idle (~£24/year)
  • 7+ premium finishes including patinated brass and rose copper
  • Quooker UK holds high Trustpilot rating across 12,000+ reviews

Watch out for

  • £1,295 RRP roughly twice the Qettle equivalent
  • Tap warranty only 2 years (tank cover separate via SWAP)
  • Filter/sparkling requires separate CUBE module (extra spend)
  • Trustpilot reports £455+ repair cost for out-of-warranty units