Bunsen burner

A Bunsen burner was a piece of laboratory equipment used to heat substances.

On a freezing March day, science teacher Ian Chesterton tried to heat up his Coal Hill School lab by putting the Bunsen burners on full blast — to no avail. (PROSE: Time and Relative)

The First Doctor compared trying to explain the mechanics of time travel to Ian to teaching a primate the principles of a Bunsen burner — "the human mind is simply not equipped to deal with four-dimensional physics." (PROSE: The Witch Hunters)

When Captain Mike Yates secretly made hot cocoa in the Third Doctor's lab, he used his Bunsen burner. The Doctor briefly speculated that it had activated an Auton doll, although he soon found out it was in fact the radio signals from Yates' radio transmitter. (TV: Terror of the Autons)

The Eleventh Doctor's TARDIS console included a bunsen burner. (COMIC: Bad Vibrations, GAME: TARDIS)