Model vs model
InSinkErator 3N1 J-Shape
vs InSinkErator GN1100
The InSinkErator GN1100 lists at £389, £510 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 →
InSinkErator
InSinkErator GN1100
Compact dedicated steaming-hot tap to pair with your mixer
Typical price: £389
Full review →The differences at a glance
- The InSinkErator GN1100 lists at £389, £510 less than the InSinkErator 3N1 J-Shape at £899.
- The InSinkErator 3N1 J-Shape ships with a 5-year warranty; the InSinkErator GN1100 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 | InSinkErator GN1100 |
|---|---|---|
| Typical price | £899 | £389✓ |
| Boiling temperature | 98°C | 98°C |
| Tank capacity | 2.5 L | 2.5 L |
| Idle power | 11 W | 11 W |
| Peak power | 1300 W | 1300 W |
| Flow rate | - | - |
| Filtered water | Yes | Yes |
| Sparkling water | No | No |
| Chilled water | No | No |
| Filter type | - | - |
| Finishes | 2 | 2 |
| Warranty | 5 years✓ | 2 years |
| Released | 2020 | 2018 |
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
InSinkErator GN1100
- Idle draw
- 11 W
- Standby energy / year
- 96 kWh
- Standby cost / year
- £26
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.
Common questions
InSinkErator 3N1 J-Shape vs InSinkErator GN1100: frequently asked
- What is the difference between the InSinkErator 3N1 J-Shape and the InSinkErator GN1100?
- The InSinkErator GN1100 lists at £389, £510 less than the InSinkErator 3N1 J-Shape at £899. The InSinkErator 3N1 J-Shape ships with a 5-year warranty; the InSinkErator GN1100 with a 2-year warranty.
- Which is cheaper, the InSinkErator 3N1 J-Shape or the InSinkErator GN1100?
- The InSinkErator GN1100 lists at £389, £510 less than the InSinkErator 3N1 J-Shape at £899.
- Which is better for hard water, the InSinkErator 3N1 J-Shape or the InSinkErator GN1100?
- Both have built-in filtration, so both reduce scale in the tank. In a hard water area, plan to replace the cartridge closer to every 6 months rather than 12.