calefaction

For, though fire by heating, both liquefies and rarefies, there are not two powers in fire, one of liquefaction, the other of rarefaction: and fire produces all such actions by its own power of calefaction.

They have their cold days, but only now and then, and they do not deem it worth their while to provide against them: the science of calefaction is reserved for the north.

When the ingenious musician withdrew the bull's horn from his mouth, and paused after his labours in a state of extreme calefaction, murmurs of applause ran all round the room.