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Boiler - Constant temperature
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The boiler in this example is set with a constant boiler temperature of 75°C. An ideal boiler is used, which means the supply temperature is exactly 75°C. More information about boilers can be found in Condensing boiler.
Boiler - Heating curve
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The boiler in this example is set with a heating curve, which can be altered by the user. More information on boilers and heating curves can be found in Condensing boiler and Generators.
Boiler - Demand controlled
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The boiler in this example is set with the maximum temperature required in the system. For instance if the heating curve of the first branch has a setpoint of 70°C, the second branch a setpoint of 74°C and the domestic hot water storage tank a setpoint of 72°C, the boiler temperature will be 74°C. This way the boiler temperature won’t be higher than the maximum required temperature.
More information on boilers and heating curves can be found in Condensing boiler and Generators.