How do you get a 40 MW hot water boiler from the Netherlands to Thun? And what does it take until it can be commissioned? The expansion of the district heating network in Thun is leading to a significantly higher heat demand. Hot water boilers produce district heat quickly and reliably – they're indispensable for energy supply, particularly during peak load times or when the municipal waste incineration plant isn't operating. The new K5 boiler at AVAG Umwelt AG, with an impressive capacity of 40 MW, replaces the previous, considerably smaller K3 boiler.