Model vs model
Quooker Classic Fusion Square
vs Quooker Flex
The Quooker Flex lists at £1,250, £200 less than the Quooker Classic Fusion Square at £1,450.
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.
Quooker
Quooker Classic Fusion Square
Traditional styling with a squared spout
Typical price: £1,450
Full review →
The differences at a glance
- The Quooker Flex lists at £1,250, £200 less than the Quooker Classic Fusion Square at £1,450.
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 | Quooker Classic Fusion Square | Quooker Flex |
|---|---|---|
| Typical price | £1,450 | £1,250✓ |
| Boiling temperature | 100°C | 100°C |
| Tank capacity | 3 L | 3 L |
| Idle power | 10 W | 10 W |
| Peak power | 1600 W | 1600 W |
| Flow rate | - | - |
| Filtered water | No | No |
| Sparkling water | No | No |
| Chilled water | No | No |
| Filter type | - | 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.
Quooker Classic Fusion Square
- Idle draw
- 10 W
- Standby energy / year
- 88 kWh
- Standby cost / year
- £24
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
Quooker Classic Fusion Square
What we like
- Period styling in a squared spout for Shaker and classic kitchens
- Patinated brass develops a genuine patina rather than a printed lacquer
- Same PRO3 tank and 100°C boil as the rest of the Fusion range
Watch out for
- 3-in-1 only: no filtered or chilled water without the CUBE upgrade
- Patinated brass needs an occasional beeswax wipe
- Fewer finishes than the standard Fusion (no gold, gunmetal or black)
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