Elementary school benefit from heat pumps

Edane elementary school students learn in comfort with a new heat pump from Thermia

The old system required too much maintenance and provided poor levels of comfort

Edane elementary school is located 15 km east of Arvika, Värmland in Sweden. The school has around 100 children, from preschool to 6th grade. The schoolyard is spacious and there is a gravel surface used for football and other games. In the winter, this area is transformed into a skating rink. The Edane school belongs to the municipality of Arvika.

“We now have a reliable, innovative system that will last for years to come and we estimate a reduction in energy consumption of around 40 MWh per year”, added Per-Inge Andersson, head of education facilities in Arvika.

Heating system that saves energy, money and reduces CO2 emissions.

The previous heating system was based on three pellet boilers with one additional oil-fired boiler as a backup heater. Heat is mainly distributed through the school via traditional radiators and, to a lesser degree, via hydronic floor heating. “Previously, we had trouble maintaining an even indoor climate”, explained the school’s technical manager, Mattias Berg.

The decision to upgrade the heating system resulted in all boilers being replaced by geothermal energy. Today, heating is provided by three Mega inverter-driven ground-source heat pumps, each with a capacity of 88 kW.
Hot water is stored in two WT-C 500 and one WT-T 500 hot water tanks and one WT-V 500 volume tank. “We now have a reliable, innovative system that will last for years to come and we estimate a reduction in energy consumption of around 40 MWh per year”, explained Per-Inge Andersson, head of education facilities in the Arvika municipality.

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