Växjö Office Building's Ventilation Upgrade Delivers Surprising Energy Savings and Improved Workplace Environment

Emilshus, the property owner of the Kvarteret Skomakaren office building in Växjö, has successfully replaced an outdated 1990s ventilation unit with a cutting-edge system from IV Produkt. The upgrade, completed in 2022, surpassed expectations by saving 90,000 kWh annually, up from the initial estimate of 85,000 kWh. This translates to energy savings exceeding 50 kWh per square meter per year.

The new ventilation system features a rotating heat exchanger combined with an integrated EcoCooler, leading to a remarkable 80% reduction in supplementary heating needs and halving electricity consumption compared to the legacy unit. Beyond energy efficiency, the modernized system enhances indoor climate quality, improving air flow control and creating a healthier environment. This improvement boosts employee comfort, concentration, and productivity.

Marcus Arhov, Emilshus’ technical manager, highlighted that the equipment has not only benefited operating costs but also significantly lowered environmental impact. IV Produkt’s CEO Mattias Sjöberg observed a growing awareness among property owners about the financial and health advantages of renovating old ventilation systems.

The upgrade is timely considering the European Union’s revised energy performance directive requiring substantial renovations of the lowest-performing 16% of buildings by 2030 and 26% by 2033. Such investments increase property value while meeting regulatory demands, emphasizing that ventilation system modernization is a critical step toward greener office environments in Sweden.