High energy savings with low investment costs
The retrofit of existing ventilation systems, especially the replacement of fans, offers enormous potential for energy savings. At the same time, today’s fan technology can sustainably improve system availability, maintenance and the indoor climate.
Replacing old, inefficient fans with modern, energy-efficient models can save up to 50% in energy and CO2 emissions, depending on the building and system. This is naturally also reflected in lower operating and energy costs – with relatively low investment costs: while a fan accounts for a maximum of 3% of the investment costs of an air handling unit, it accounts for up to 70% of the operating costs.
Numerous retrofit examples from a wide variety of non-residential buildings – from hotels to airports – show that the payback period for fan replacement is only between two and five years on average, depending on the system and building.