Heizhaus, also known as Kjelehus, is a historical landmark in Trondheim. The building holds a significant place in the city's industrial history and represents an important part of Trondheim's development. Originally built to house boilers that were essential for the city's steam power generation, Heizhaus has thus been a central part of the technological development in the region.
The architecture of Heizhaus reflects the time when the building was built, with characteristic features typical of industrial design from the period. The building has undergone various phases of restoration and conservation, which has helped to preserve its historical value. Today, Heizhaus is recognized as an important cultural monument, and it attracts both locals and visitors who want to learn more about Trondheim's industrial heritage.