The climate inside the gangways has been improved. Head of the Project Firm of DH, ing. Jan Pekelder, says it’ll be slightly cooler in summer because they used tinted glass and installed a ventilation system. In winter, the temperature won’t drop below zero anymore, either. An exploitation-friendly heating system has been installed in the form of ring heaters. Mechanic Van den Eijnde shows the water pipes in the ceiling. “The water releases heat into the air, which is forced down by an installation.”