Model vs model
InSinkErator 3N1 J-Shape
vs Qettle Original 4-in-1
The Qettle Original 4-in-1 lists at £620, £279 less than the InSinkErator 3N1 J-Shape at £899.
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 →
Qettle
Qettle Original 4-in-1
Half the Quooker price, same boiling point
Typical price: £620
Full review →The differences at a glance
- The Qettle Original 4-in-1 lists at £620, £279 less than the InSinkErator 3N1 J-Shape at £899.
- The Qettle Original 4-in-1 dispenses at 100°C; the InSinkErator 3N1 J-Shape tops out at 98°C.
- Declared idle draw is 11 W for the InSinkErator 3N1 J-Shape against 14 W for the Qettle Original 4-in-1, which compounds into the standby cost difference below.
- Tank capacity: 4 L on the Qettle Original 4-in-1 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 ships with a 5-year warranty; the Qettle Original 4-in-1 with a 2-year warranty.
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 | Qettle Original 4-in-1 |
|---|---|---|
| Typical price | £899 | £620✓ |
| Boiling temperature | 98°C | 100°C✓ |
| Tank capacity | 2.5 L | 4 L |
| Idle power | 11 W✓ | 14 W |
| Peak power | 1300 W | 1300 W |
| Flow rate | - | - |
| Filtered water | Yes | Yes |
| Sparkling water | No | No |
| Chilled water | No | No |
| Filter type | - | Q08 extruded carbon block cartridge |
| Finishes | 2 | 4✓ |
| Warranty | 5 years✓ | 2 years |
| Released | 2020 | 2021 |
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
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
Qettle Original 4-in-1
- Idle draw
- 14 W
- Standby energy / year
- 123 kWh
- Standby cost / year
- £33
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
Qettle Original 4-in-1
What we like
- £620 RRP roughly half the equivalent Quooker pricing
- 4L tank delivers around 8 mugs back-to-back
- Filtered cold and 100°C boiling from a single spout
- Trustpilot praises Qettle support beyond warranty period
Watch out for
- Standard warranty just 2 years on boiler and cartridge
- Trustpilot reports boiler leaks at 2.5-3 year mark
- Annual descale required, more maintenance than Quooker
- Service network thinner than established brands