boilingwatertap.

Model vs model

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

The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £945, £305 less than the Quooker Fusion Round at £1,250.

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 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

Typical price: £945

Full review →
Quooker Fusion Round boiling water tap in polished chrome

Quooker

Quooker Fusion Round

The iconic all-in-one in modern round form

Typical price: £1,250

Full review →

The differences at a glance

  • The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £945, £305 less than the Quooker Fusion Round at £1,250.
  • Declared idle draw is 10 W for the Quooker Fusion Round 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 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 (Round Spout, 7L) dispenses filtered drinking water; the Quooker Fusion Round does not.

The two taps in a kitchen

Qettle Signature Modern Round 7L tap beside a white sink with a bowl of lemons
The Qettle Signature Modern 4-in-1 (Round Spout, 7L) in a bright airy white kitchen. Visualisation composed from the manufacturer's product photo.
Quooker Fusion Round boiling water tap in golden-hour light, red ring visible
The Quooker Fusion Round in a soft minimalist kitchen at golden hour. Visualisation composed from the manufacturer's product photo.

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 (Round Spout, 7L) vs Quooker Fusion Round specifications from manufacturer datasheets
SpecQettle Signature Modern 4-in-1 (Round Spout, 7L)Quooker Fusion Round
Typical price£945£1,250
Boiling temperature100°C100°C
Tank capacity7 L3 L
Idle power18 W10 W
Peak power1700 W1600 W
Flow rate--
Filtered waterYesNo
Sparkling waterNoNo
Chilled waterNoNo
Filter typeQ08 extruded carbon block cartridgeActive carbon filter inside the tank
Finishes57
Warranty2 years2 years
Released20222022

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

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

  • Amazon UKCheck price at retailerView ↗

Price checked on 27 Aug 2026.

Quooker Fusion Round

No price-checked retailer offers for this model yet. Get a supply + installation quote instead →

Standby energy

What the idle draw adds up to over a year.

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

Idle draw
18 W
Standby energy / year
158 kWh
Standby cost / year
£43

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 (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

Quooker Fusion Round

What we like

  • True 100°C delivery reported in T3's 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

  • £1,250 RRP roughly twice the Qettle equivalent
  • 2-year warranty on tap and tank (SWAP is a paid out-of-warranty tank replacement)
  • Filter/sparkling requires separate CUBE module (extra spend)
  • Trustpilot reports £455+ repair cost for out-of-warranty units

Common questions

Qettle Signature Modern 4-in-1 (Round Spout, 7L) vs Quooker Fusion Round: frequently asked

What is the difference between the Qettle Signature Modern 4-in-1 (Round Spout, 7L) and the Quooker Fusion Round?
The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £945, £305 less than the Quooker Fusion Round at £1,250. Declared idle draw is 10 W for the Quooker Fusion Round 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 3 L on the Quooker Fusion Round. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
Which is cheaper, the Qettle Signature Modern 4-in-1 (Round Spout, 7L) or the Quooker Fusion Round?
The Qettle Signature Modern 4-in-1 (Round Spout, 7L) lists at £945, £305 less than the Quooker Fusion Round at £1,250.
Which is better for hard water, the Qettle Signature Modern 4-in-1 (Round Spout, 7L) or the Quooker Fusion Round?
The Qettle Signature Modern 4-in-1 (Round Spout, 7L) has a built-in filter, the better choice in a hard water area: it reduces scale build-up in the tank and improves taste. The Quooker Fusion Round has no built-in filtration, so its tank will scale faster without a separate softener.

Get a supply and installation quote for the Qettle Signature Modern 4-in-1 (Round Spout, 7L) or Quooker Fusion Round

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