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You can use the calculator for hot water boilers, water and air heat exchangers, hot water radiators, water chillers, air heaters, and other heat power generation and consumption units.

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HeaterWaterQ, T_{1}, T_{2}, dP

Task: Calculate the heat output of the heat exchanger if the water flow is 2 l/s, the temperature in front of the exchanger is 25 C, and behind the exchanger is 60 C. The diameter of the connecting pipes is 60 mm.

Solution: Heat output: 292.43 kW

HeaterWaterP, T_{1}, T_{2}, dQ

Task: Calculate the flow of water through the heat exchanger if the heat output of the exchanger is 2000 kW. The temperature in front and behind the exchanger is 70 C and 90 C. The diameter of the connecting pipes is 150 mm.

Solution: Flow rate: 86.173 m3/h

ChillerWaterP, T_{1}, T_{2}, dQ

Task: Calculate the flow of water through the chiller if the output of the chiller is 2000 kW. The temperature in front and behind the chiller is 12 C and 7 C. Calculate also the diameter of the connecting pipes for a known water flow rate of 1 m/s.

Solution: Flow rate: 344.96 m3/h