Small instantaneous water heaters – huge savings
Instantaneous water heaters do not consume any stand-by power. They heat the water only when needed and achieve additional water savings as the flow rate is set to an economic level. That adds up to energy savings of up to 85 % in comparison with conventional storage water heaters. In buildings with several washing facilities total savings can be considerable.
An instantaneous water heater MH 3 (3.5 kW power rating delivering 2 l /min) was compared with a 5-litre storage heater (power consumption in standby: 0.25 kWh / d, delivering 5 l/m) in the washroom of an office building with the following parameters: Daily use frequency: 10 times; duration of use: 10 seconds respectively; temperature at point of use: approx. 38 °C; number of days in use: 230 days (source: CLAGE).