H=
W1 * T * Q

Wn
T1
T2
T =
-
=
Wn  =
Q =
H =


o'clock
minutes
KWh
Calculation:
  1. Time needed to heat the water in the water heater.
Т1 - initial water temperature (entry into the tank, water is most often with temperature 12-13 degrees).
Т2 - desired final temperature of the water.
Must:
0 < Т1 < 100
0
< Т2 < 100
Т2 >Т1
Set the color fields!

H - time in hours and minutes.
W1 = 0.0011864  KWh  - to heat 1 liter of water by 1 degree.
T - degrees to increase the water temperature.
Wn - power of the electric heater.
Q - liters of water.
2. The required amount of electricity -
3. The required amount in euro:
Price for 1 KWh daily energy -
Price for 1 KWh night energy -
Amount under using the daily energy -
Amount under using the night energy -
euro
euro
euro
euro