Schwank gas radiant overhead tube heaters were installed at the Liebherr Erskine Park manufacturing facility in NSW as a standardised facility heating solution.

A high efficiency heating solution for medium to large facilities, Schwank gas radiant overhead tube heaters distributed in Australia by Devex Systems , were selected as the preferred choice for heating the Erskine Park location.

The Erskine Park, NSW facility was newly built in 2012 with a number of workshops designed for the repair and maintenance of crane machinery. With over 80 staff in this facility, ensuring comfortable working conditions throughout the year was of utmost importance. 

The team at Liebherr, Erskine Park wanted a solution that not only satisfied staff comfort levels, but would also conserve energy and reduce long-term running costs. Liebherr Australia commissioned Thiess, a leading construction and services contractor in Australia for the construction and redevelopment of the Erskine Park facility. Devex Systems also worked directly with Liebherr and Thiess to coordinate, design and oversee the installation of the project.

The size of the space heated with high efficiency Schwank gas radiant overhead tube heaters was approximately 2600m² with a mounting height of 9.5m-12m and four zones. Air changes were estimated around 1.5 per hour and the estimated heat loss of the facility was approximately 580 kW. 

Twelve calorSchwank tube heaters, comprising of five 40U and seven 30U units were specified for this application after taking into consideration the large enclosed area of the space that required heating and its ceiling height. The designed comfort setting for the area being heated was 16°C as measured by a black bulb.

A single Schwank ThermoControl Plus M4 controller applied to four heating zones at the Erskine Park facility was used to control the heating system. It was also set up to control the ridge ventilator, enabling appropriate ventilation and proper disposal of combustion gases when the burners were running. 

Low running costs and fast payback were two key benefits delivered by the calorSchwank heaters. The radiant heat factor of the calorSchwank was extremely high at 70% and its modulation capabilities allowed for better overall control of the system and higher efficiency. The design of these heaters helped to minimise the amount of convection heat, thereby achieving a high radiant factor and improving the efficiency.