Boiler

A boiler was used to generate power by burning. In the 1900s, Fang Rock lighthouse had a series of boilers that were used to generate power from coal. The Fourth Doctor asked Leela to help Vince Hawkins to stoke the boilers, a task Adelaide Lessage thought improper for a woman. (TV: Horror of Fang Rock)

When the Master took over a nursing home after faking his death, he killed many of the staff and patients with his Tissue Compression Eliminator and burned their bodies in the boiler. (PROSE: The Velvet Dark)

After an explosion in a boiler room in the school that C. S. attended, the Ninth Doctor told C. S. that they needed a new boiler as the current one was unsafe. (PROSE: Have You Seen This Man?)