Model vs model
InSinkErator 3N1 J-Shape
vs Quooker Fusion Round
The InSinkErator 3N1 J-Shape lists at £899, £351 less than the Quooker Fusion Round 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.
For either tap. Free and no obligation.
InSinkErator
InSinkErator 3N1 J-Shape
Steaming hot, hot and cold from a slim J-shape spout
Typical price: £899
Full review →
Quooker
Quooker Fusion Round
The iconic all-in-one in modern round form
Typical price: £1,250
Full review →The differences at a glance
- The InSinkErator 3N1 J-Shape lists at £899, £351 less than the Quooker Fusion Round at £1,250.
- The Quooker Fusion Round dispenses at 100°C; the InSinkErator 3N1 J-Shape tops out at 98°C.
- Declared idle draw is 10 W for the Quooker Fusion Round against 11 W for the InSinkErator 3N1 J-Shape, which compounds into the standby cost difference below.
- Tank capacity: 3 L on the Quooker Fusion Round versus 2.5 L on the InSinkErator 3N1 J-Shape. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
- The InSinkErator 3N1 J-Shape dispenses filtered drinking water; the Quooker Fusion Round does not.
- The InSinkErator 3N1 J-Shape ships with a 5-year warranty; the Quooker Fusion Round with a 2-year warranty.
The two taps in a 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 | InSinkErator 3N1 J-Shape | Quooker Fusion Round |
|---|---|---|
| Typical price | £899✓ | £1,250 |
| Boiling temperature | 98°C | 100°C✓ |
| Tank capacity | 2.5 L | 3 L |
| Idle power | 11 W | 10 W✓ |
| Peak power | 1300 W | 1600 W |
| Flow rate | - | - |
| Filtered water | Yes✓ | No |
| Sparkling water | No | No |
| Chilled water | No | No |
| Filter type | - | Active carbon filter inside the tank |
| Finishes | 2 | 7✓ |
| Warranty | 5 years✓ | 2 years |
| Released | 2020 | 2022 |
Where to buy
Checked manually and dated; the retailer's page is always the live source. Affiliate links, disclosed as such. Commission never changes our comparisons. How affiliate links work here
InSinkErator 3N1 J-Shape
- Amazon UKCheck price at retailerView ↗
Quooker Fusion Round
No price-checked retailer offers for this model yet. Get a supply + installation quote instead →
Standby energy
What the idle draw adds up to over a year.
InSinkErator 3N1 J-Shape
- Idle draw
- 11 W
- Standby energy / year
- 96 kWh
- Standby cost / year
- £26
Quooker Fusion Round
- 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
InSinkErator 3N1 J-Shape
Quooker Fusion Round
What we like
- True 100°C delivery reported in T3's review
- Vacuum-insulated tank consumes ~10W idle (~£24/year)
- 7+ premium finishes including patinated brass and rose copper
- Quooker UK holds high Trustpilot rating across 12,000+ reviews
Watch out for
- £1,250 RRP roughly twice the Qettle equivalent
- 2-year warranty on tap and tank (SWAP is a paid out-of-warranty tank replacement)
- Filter/sparkling requires separate CUBE module (extra spend)
- Trustpilot reports £455+ repair cost for out-of-warranty units