Peat Burner

Peat Burner is a building in Oxygen Not Included notable for the distinctive scent it emits. In the game's descriptions it is said to give off an aroma that some Duplicants find inexplicably nostalgic; this line appears across the game's localized text and is a recurring bit of flavor associated with the device.

Beyond that single, repeated descriptive note, available localization text does not provide technical details, mechanics, or numerical effects tied to the aroma. The statement is presented as flavor text rather than a quantified game mechanic: it characterizes the building's smell and the subjective reaction of certain Duplicants without specifying any gameplay consequences. Players referencing only the provided localization lines should treat the nostalgic aroma as descriptive lore rather than documented in-game effects.