At what electricity price per kwh does heating water electrically using flow-through heater/s (instantaneous heaters) for the house (showers, kitchen) make more sense than using gas costing 22 cents/kWh (i.e. 2€ per cubic meter = 6 cents per cubic foot) to run gas central heating ? (Assuming central heating is running 18 hours a day anyway with exterior temperature of 4 degees celcius = 40 farenheit) #Durchlauferhitzer #instantaneousWaterHeater