To heat a tonne of water from 20 to 80 °C in an hour you need about 70 kW of useful thermal power. The calculator takes heater efficiency into account and shows approximate steam consumption.
Approximate calculation using a simplified model: for designing equipment and process modes, consult a technologist.
How many kW are needed to heat 1000 litres of water by 60 degrees in an hour?
Q = 1000 × 4.19 × 60 = 251,400 kJ, which is ≈ 69.8 kW at 100 % efficiency.
The calculations are approximate: they help to assess the process and compare options, but do not replace a process design and trials on a specific raw material. This section is for reference only and contains no commercial offers.