Model vs model
Quooker Classic Fusion
vs Quooker Flex
The Quooker Flex lists at £1,250, £200 less than the Quooker Classic Fusion 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.
For either tap. Free and no obligation.
Quooker
Quooker Classic Fusion
Traditional styling with modern boiling
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 at £1,450.
Both taps share the same tank and idle draw. Run your own tariff and usage through the running cost calculator to see the 10-year total for each.
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 | 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 | Active carbon filter inside the tank |
| Finishes | 4 | 6✓ |
| Warranty | 2 years | 2 years |
| Released | 2020 | 2023 |
Boiling water taps you can buy today
Quooker sells direct and is not listed on Amazon UK. These three taps in a similar price range are.
Every Quooker RRP and the yearly running cost are in our Quooker tap prices guide and the Quooker alternatives review.
If you buy through one of these links we may earn a commission. It never changes how we rank or score a tap. How affiliate links work here
Franke Omni
4.2 L tank, up to 100°C, RRP £1,199.
- Amazon UKRRP £1,199View ↗
Qettle Signature Modern 4-in-1 (Round Spout, 7L)
7 L tank, up to 100°C, RRP £945.
- Amazon UKRRP £945View ↗
InSinkErator 3N1 J-Shape
2.5 L tank, up to 98°C, RRP £899.
- Amazon UKRRP £899View ↗
Standby energy
What the idle draw adds up to over a year.
Quooker Classic Fusion
- 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
What we like
- Traditional bridge-style spout suits period kitchens
- Patinated brass develops natural patina without lacquer
- Same PRO3 tank as Fusion Round (genuine 100°C)
Watch out for
- Patinated brass needs occasional beeswax application
- 3-in-1 only (no chilled/sparkling without CUBE upgrade)
- Most UK retailers list price as POA, transparency weaker
- Tap warranty 2 years matches rest of Quooker range
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
Quooker Classic Fusion vs Quooker Flex: frequently asked
- What is the difference between the Quooker Classic Fusion and the Quooker Flex?
- The Quooker Flex lists at £1,250, £200 less than the Quooker Classic Fusion at £1,450.
- Which is cheaper, the Quooker Classic Fusion or the Quooker Flex?
- The Quooker Flex lists at £1,250, £200 less than the Quooker Classic Fusion at £1,450.
- Which is better for hard water, the Quooker Classic Fusion 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.