Calorifier is a device utilizes the heat energy of steam to heat the water for heating and domestic purposes. There are two basic types of calorifier, the storage type, used to heat water for domestic purposes and the non-storage type designed to heat water for a means of central heating. The calorifier is sometimes used to provide heat to a drying room for linen. Calorifier is drained in order to replace heating elements.

Calorimeter Test Systems are used for automotive compressors.