boilingwatertap.

Model vs model

Franke Maris Water Hub 3-in-1 Mechanical
vs Qettle Signature

The Qettle Signature lists at £795, £194 less than the Franke Maris Water Hub 3-in-1 Mechanical at £989.

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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Franke Maris Water Hub 3-in-1 mechanical boiling water tap in chrome at a black undermount sink

Franke

Franke Maris Water Hub 3-in-1 Mechanical

Boiling water from a pull-and-turn knob, with no electronics above the sink

Typical price: £989

Full review →
Qettle Signature Modern 4-in-1 boiling water tap

Qettle

Qettle Signature

Compact 4-in-1 for smaller kitchens

Typical price: £795

Full review →

The differences at a glance

  • The Qettle Signature lists at £795, £194 less than the Franke Maris Water Hub 3-in-1 Mechanical at £989.
  • Declared idle draw is 11 W for the Qettle Signature against 14 W for the Franke Maris Water Hub 3-in-1 Mechanical, which compounds into the standby cost difference below.
  • Tank capacity: 4 L on the Franke Maris Water Hub 3-in-1 Mechanical versus 2 L on the Qettle Signature. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
  • The Qettle Signature dispenses filtered drinking water; the Franke Maris Water Hub 3-in-1 Mechanical 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.

Franke Maris Water Hub 3-in-1 Mechanical vs Qettle Signature specifications from manufacturer datasheets
SpecFranke Maris Water Hub 3-in-1 MechanicalQettle Signature
Typical price£989£795
Boiling temperature100°C100°C
Tank capacity4 L2 L
Idle power14 W11 W
Peak power1650 W1300 W
Flow rate--
Filtered waterNoYes
Sparkling waterNoNo
Chilled waterNoNo
Filter typeFranke Pro M: five-stage, with ion-exchange resin and a 5 micron carbon blockQ08 extruded carbon block cartridge
Finishes33
Warranty2 years2 years
Released-2023

Standby energy

What the idle draw adds up to over a year.

Franke Maris Water Hub 3-in-1 Mechanical

Idle draw
14 W
Standby energy / year
123 kWh
Standby cost / year
£33

Qettle Signature

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

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 Maris Water Hub 3-in-1 Mechanical

What we like

  • The mechanical control needs a deliberate pull and turn, so a wiped worktop or a stray hand cannot start boiling water
  • Pan-fill lock holds the flow open, which a spring-loaded control will not do
  • A genuine 100°C rather than the 98°C most rivals settle for
  • Around £140 less than the electronic version of the same system

Watch out for

  • No filtered cold drinking water, and unlike the electronic model it cannot be upgraded to 4-in-1 later
  • Two-year guarantee on tap, tank and filter housing, shorter than the Instante
  • The Pro M cartridge runs about £80 a year and skipping it invalidates the guarantee
  • Needs a 35 mm tap hole and a worktop no thicker than 50 mm

Qettle Signature

What we like

  • Compact 2L tank fits tighter under-sink cabinets
  • Hits 100°C boiling matching premium-brand temperatures
  • £795 entry into Qettle's marine-grade Signature line
  • Trustpilot reviewers cite responsive UK customer service

Watch out for

  • 2L tank delivers only 4 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

Common questions

Franke Maris Water Hub 3-in-1 Mechanical vs Qettle Signature: frequently asked

What is the difference between the Franke Maris Water Hub 3-in-1 Mechanical and the Qettle Signature?
The Qettle Signature lists at £795, £194 less than the Franke Maris Water Hub 3-in-1 Mechanical at £989. Declared idle draw is 11 W for the Qettle Signature against 14 W for the Franke Maris Water Hub 3-in-1 Mechanical, which compounds into the standby cost difference below. Tank capacity: 4 L on the Franke Maris Water Hub 3-in-1 Mechanical versus 2 L on the Qettle Signature. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
Which is cheaper, the Franke Maris Water Hub 3-in-1 Mechanical or the Qettle Signature?
The Qettle Signature lists at £795, £194 less than the Franke Maris Water Hub 3-in-1 Mechanical at £989.
Which is better for hard water, the Franke Maris Water Hub 3-in-1 Mechanical or the Qettle Signature?
The Qettle Signature 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 Franke Maris Water Hub 3-in-1 Mechanical has no built-in filtration, so its tank will scale faster without a separate softener.

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