"Delivering 20 litres of 98ºC water per day from the HydroTap G4 will cost about 1.8kWh or 27p to heat. That’s just over £80 for 300 days in use per year. We estimate that dispensing 3 litres of chilled water per day will add about £20 per year to those costs. Total energy running costs based on this usage would be around £140 per year.*"
*Costs correct at time of publishing, will be variable dependent on various factors.