Puistokatu 25, Jyväskylä

The first waste water heat exchanger connected to the heat pump was installed to Puistokatu 25 building in Jyväskylä in 2016. At the same time the heating system change was also done in the building. Heat pump was connected alongside district heat to extract heat from the extract air and waste water. The advantage of the system is the recovery of the two largest energy losses (extract air and waste water) with one heat pump system, which significantly reduces the use of district heating for heating the property and hot water.