boilingwatertap.

Model vs model

InSinkErator GN1100
vs Zip HydroTap Classic

The InSinkErator GN1100 lists at £389, £3,976 less than the Zip HydroTap Classic at £4,365.

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 GN1100 steaming hot water side tap

InSinkErator

InSinkErator GN1100

Compact dedicated steaming-hot tap to pair with your mixer

Typical price: £389

Full review →
Zip HydroTap Classic chrome tap with boiling and chilled buttons

Zip Water

Zip HydroTap Classic

Boiling, chilled, sparkling, filtered

Typical price: £4,365

Full review →

The differences at a glance

  • The InSinkErator GN1100 lists at £389, £3,976 less than the Zip HydroTap Classic at £4,365.
  • The Zip HydroTap Classic dispenses at 99°C; the InSinkErator GN1100 tops out at 98°C.
  • Declared idle draw is 11 W for the InSinkErator GN1100 against 35 W for the Zip HydroTap Classic, which compounds into the standby cost difference below.
  • Tank capacity: 4 L on the Zip HydroTap Classic versus 2.5 L on the InSinkErator GN1100. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
  • The Zip HydroTap Classic dispenses sparkling water; the InSinkErator GN1100 does not.
  • The Zip HydroTap Classic dispenses chilled water; the InSinkErator GN1100 does not.
  • The InSinkErator GN1100 ships with a 5-year warranty; the Zip HydroTap Classic with a 3-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.

InSinkErator GN1100 vs Zip HydroTap Classic specifications from manufacturer datasheets
SpecInSinkErator GN1100Zip HydroTap Classic
Typical price£389£4,365
Boiling temperature98°C99°C
Tank capacity2.5 L4 L
Idle power11 W35 W
Peak power1300 W2000 W
Flow rate--
Filtered waterYesYes
Sparkling waterNoYes
Chilled waterNoYes
Filter type-Zip GlobalPlus 0.2 micron filter
Finishes25
Warranty5 years3 years
Released20182021

Standby energy

What the idle draw adds up to over a year.

InSinkErator GN1100

Idle draw
11 W
Standby energy / year
96 kWh
Standby cost / year
£26

Zip HydroTap Classic

Idle draw
35 W
Standby energy / year
307 kWh
Standby cost / year
£83

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 GN1100

Zip HydroTap Classic

What we like

  • Filtered boiling, chilled and sparkling from one tap
  • Touchscreen with PIN protection and energy-saving sleep modes
  • 0.2 micron NSF-certified filter included as standard
  • Largest UK engineer network for service and maintenance

Watch out for

  • £4,365 RRP is several times rival 4-in-1 prices
  • Installation around £520 extra on top of hardware
  • Ongoing CO2 canister costs for sparkling function
  • Designed primarily for commercial use, residential overkill