boilingwatertap.

Model vs model

Franke Minerva
vs Zip HydroTap G5 Cube Plus

The Franke Minerva lists at £899, £3,131 less than the Zip HydroTap G5 Cube Plus at £4,030.

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.

Franke Minerva boiling water tap, gunmetal swan-neck spout

Franke

Franke Minerva

3-in-1 boiling tap, premium classic

UK RRP: £899

Full review →
Zip HydroTap G5 Cube Plus chrome square-spout tap

Zip Water

Zip HydroTap G5 Cube Plus

Cubed-spout flagship: boiling, chilled and sparkling filtered water

UK RRP: £4,030

Full review →

The differences at a glance

  • The Franke Minerva lists at £899, £3,131 less than the Zip HydroTap G5 Cube Plus at £4,030.
  • The Franke Minerva dispenses at 100°C; the Zip HydroTap G5 Cube Plus tops out at 98°C.
  • Declared idle draw is 12 W for the Franke Minerva against 35 W for the Zip HydroTap G5 Cube Plus, which compounds into the standby cost difference below.
  • Tank capacity: 4.7 L on the Franke Minerva versus 3 L on the Zip HydroTap G5 Cube Plus. Bigger tanks serve more cups back to back; smaller tanks take less cupboard space.
  • The Zip HydroTap G5 Cube Plus dispenses filtered drinking water; the Franke Minerva does not.
  • The Zip HydroTap G5 Cube Plus dispenses sparkling water; the Franke Minerva does not.
  • The Zip HydroTap G5 Cube Plus dispenses chilled water; the Franke Minerva does not.
  • The Franke Minerva ships with a 3-year warranty; the Zip HydroTap G5 Cube Plus 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.

Franke Minerva vs Zip HydroTap G5 Cube Plus specifications from manufacturer datasheets
SpecFranke MinervaZip HydroTap G5 Cube Plus
UK RRP£899£4,030
Boiling temperature100°C98°C
Tank capacity4.7 L3 L
Idle power12 W35 W
Peak power1500 W2400 W
Flow rate-4 L/min
Filtered waterNoYes
Sparkling waterNoYes
Chilled waterNoYes
Filter type-Zip MicroPurity 0.2 micron filter
Finishes28
Warranty3 years2 years
Released20182023

Standby energy

What the idle draw adds up to over a year.

Franke Minerva

Idle draw
12 W
Standby energy / year
105 kWh
Standby cost / year
£28

Zip HydroTap G5 Cube Plus

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

Franke Minerva

What we like

  • £899 RRP undercuts most 100°C branded competitors
  • 4.7L tank capacity highest in the sub-£900 segment
  • Genuine 100°C dispense matches premium models
  • M-Box install system fits in under 30 minutes for a plumber

Watch out for

  • Review Centre reports flow degradation within first year
  • No built-in filter (scale build-up in hard-water areas)
  • Customer support email-only, no engineer home visits
  • Trustpilot mentions boiler failures near warranty expiry

Zip HydroTap G5 Cube Plus

What we like

  • Instant boiling and chilled water from one tap
  • 0.2-micron MicroPurity filter removes dirt, lead, microplastics and 99.9% of cysts
  • Energy-saving sleep modes and low-impact R290 refrigerant
  • Seven finishes and a 12-month filter interval

Watch out for

  • Factory-set to 98°C rather than true 100°C boiling
  • Under-sink command centre is 470 mm deep
  • Two-year warranty