Model vs model
Franke Maris Water Hub 3-in-1 Mechanical
vs Quooker Flex
The Franke Maris Water Hub 3-in-1 Mechanical lists at £989, £261 less than the Quooker Flex 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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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 →
The differences at a glance
- The Franke Maris Water Hub 3-in-1 Mechanical lists at £989, £261 less than the Quooker Flex at £1,250.
- Declared idle draw is 10 W for the Quooker Flex 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 3 L on the Quooker Flex. 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.
| Spec | Franke Maris Water Hub 3-in-1 Mechanical | Quooker Flex |
|---|---|---|
| Typical price | £989✓ | £1,250 |
| Boiling temperature | 100°C | 100°C |
| Tank capacity | 4 L | 3 L |
| Idle power | 14 W | 10 W✓ |
| Peak power | 1650 W | 1600 W |
| Flow rate | - | - |
| Filtered water | No | No |
| Sparkling water | No | No |
| Chilled water | No | No |
| Filter type | Franke Pro M: five-stage, with ion-exchange resin and a 5 micron carbon block | Active carbon filter inside the tank |
| Finishes | 3 | 6✓ |
| Warranty | 2 years | 2 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
Quooker Flex
- 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
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
Quooker Flex
What we like
- Pull-out hose rinses sinks plus full 100°C boiling
- Same vacuum-insulated tank delivers true boiling water
- Magnetic dock returns hose neatly after use
- Boiling flow auto-locks when hose is detached from base
Watch out for
- £1,250 RRP matches Fusion despite extra moving parts
- Trustpilot owners report hose fraying within several years
- Hose replacement is a paid call-out, not 5-min DIY
- Requires 500mm depth + 200mm width clear undersink space
Common questions
Franke Maris Water Hub 3-in-1 Mechanical vs Quooker Flex: frequently asked
- What is the difference between the Franke Maris Water Hub 3-in-1 Mechanical and the Quooker Flex?
- The Franke Maris Water Hub 3-in-1 Mechanical lists at £989, £261 less than the Quooker Flex at £1,250. Declared idle draw is 10 W for the Quooker Flex 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 3 L on the Quooker Flex. 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 Quooker Flex?
- The Franke Maris Water Hub 3-in-1 Mechanical lists at £989, £261 less than the Quooker Flex at £1,250.
- Which is better for hard water, the Franke Maris Water Hub 3-in-1 Mechanical or the Quooker Flex?
- Neither has built-in filtration, so in a hard water area both tanks will scale over time unless you add a separate softener.
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