boilingwatertap.

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.

InSinkErator 3N1 J-Shape steaming hot water tap

InSinkErator

InSinkErator 3N1 J-Shape

Steaming hot, hot and cold from a slim J-shape spout

Typical price: £899

Full review →
InSinkErator GN1100 steaming hot water side tap

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.

Full specification, side by side

Sourced from manufacturer datasheets. A tick marks the better number on specs where more or less is objectively better.

InSinkErator 3N1 J-Shape vs InSinkErator GN1100 specifications from manufacturer datasheets
SpecInSinkErator 3N1 J-ShapeInSinkErator GN1100
Typical price£899£389
Boiling temperature98°C98°C
Tank capacity2.5 L2.5 L
Idle power11 W11 W
Peak power1300 W1300 W
Flow rate--
Filtered waterYesYes
Sparkling waterNoNo
Chilled waterNoNo
Filter type--
Finishes22
Warranty5 years5 years
Released20202018

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.