Efficient hall heating
on 32,000 m² of production space

The customer’s task

As part of a new building project, Kessler & Co. planned an energy-efficient heating solution that not only met the highest technical requirements, but also took up as little space as possible. The aim was to ensure a constantly pleasant room temperature in the large production hall – while at the same time maximizing energy efficiency. The new light-flooded hall with a total area of around 32,000 m² was to be heated evenly during the heating period in winter and kept at a pleasant temperature in summer. To achieve this, Kessler & Co. commissioned LK Metall to implement a modern and climate-friendly heating concept. The choice fell on the RBW decentralized hot air heaters from LK Metall, which are characterized by their compact design, high efficiency and environmentally friendly condensing technology – ideal for large industrial spaces with high demands on comfort and sustainability.

The solution from LK Metall

Thanks to the space-saving ceiling units from LK Metall, the available production area could be optimally utilized. A total of twelve RBW 250 hot air heaters, each with a heating capacity of 160 kW, were installed in the upper area of the shed roof – including ceiling fans for even air distribution. With an efficiency of over 105%, the condensing boiler technology ensures maximum efficiency. The control of the heating system automatically adapts to the current temperature conditions in the hall. For safe and easy installation, the technology was individually adapted to the ceiling construction – including consideration of structural requirements.

In addition, rising hall air from process waste heat and solar radiation is used via the skylights to further increase energy efficiency. The hall air is extracted, filtered, mixed with fresh air, heated via the combustion chamber and fed back in draught-free. Stainless steel mesh filters are used to remove dust and aerosols. A modulating fan-assisted gas burner provides the required heat output. Sensor-controlled return air ceiling fans reduce the temperature stratification to below 0.5 °C per meter – for uniform temperatures throughout the hall and noticeable CO₂ savings.