Model vs model
Quooker Flex
vs Quooker Fusion Square
On the manufacturer's spec sheet the Quooker Flex and Quooker Fusion Square are the same tap in a different spout design: same price, boiling temperature, tank and warranty. The choice comes down to which shape suits your kitchen.
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.
For either tap. Free and no obligation.
Quooker
Quooker Fusion Square
The best-selling all-in-one in a squared-off spout
Typical price: £1,250
Full review →The differences at a glance
- On the manufacturer's spec sheet the Quooker Flex and Quooker Fusion Square are the same tap in a different spout design: same price, boiling temperature, tank and warranty. The choice comes down to which shape suits your kitchen.
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 Flex | Quooker Fusion Square |
|---|---|---|
| Typical price | £1,250 | £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 | 6 | 7✓ |
| Warranty | 2 years | 2 years |
| Released | 2023 | - |
Standby energy
What the idle draw adds up to over a year.
Quooker Flex
- Idle draw
- 10 W
- Standby energy / year
- 88 kWh
- Standby cost / year
- £24
Quooker Fusion Square
- 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 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
Quooker Fusion Square
What we like
- True 100°C boil from the same PRO3 tank as the Fusion Round
- Squared profile suits handleless and contemporary kitchens
- Seven finishes including patinated brass, gold and rose copper
- Quooker UK holds a high Trustpilot rating across 12,000+ reviews
Watch out for
- £1,250 buys boiling plus standard hot and cold only
- Filtered, chilled or sparkling water needs the separate CUBE module
- 2-year warranty on tap and tank (SWAP is a paid out-of-warranty tank swap)
Common questions
Quooker Flex vs Quooker Fusion Square: frequently asked
- What is the difference between the Quooker Flex and the Quooker Fusion Square?
- On the manufacturer's spec sheet the Quooker Flex and Quooker Fusion Square are the same tap in a different spout design: same price, boiling temperature, tank and warranty. The choice comes down to which shape suits your kitchen.
- Which is cheaper, the Quooker Flex or the Quooker Fusion Square?
- Both list at the same manufacturer price, £1,250.
- Which is better for hard water, the Quooker Flex or the Quooker Fusion Square?
- Neither has built-in filtration, so in a hard water area both tanks will scale over time unless you add a separate softener.