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HÖRSTAD Mixing Pump Set
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Circulation systems such as underfloor heating systems can only function seamlessly if no air is present in the system. They prevent premature pump failure, improve heat distribution, increas eefficiency and make for a low-noise system. That is why our pump has built in a venting routine mode. In this mode, the pump runs on and off for 10 minutes in order to force the air to the highest point in the system. An installer will then vent the system, check whether the system pressure is still correct and apply more if necessary.