steam chest vs chamber

steam chest and chamber both are nouns.

Word	Noun	Adjective	Verb	Adverb
steam chest	Yes	No	No	No
chamber	Yes	No	Yes	No

As nouns, chamber is a hypernym of steam chest; that is, chamber is a word with a broader meaning than steam chest:

steam chest (noun)	chamber (noun)
the chamber from which steam is distributed to a cylinder	a natural or artificial enclosed space
	a room used primarily for sleeping
	a room where a judge transacts business
	an enclosed volume in the body
	a deliberative or legislative or administrative or judicial assembly

steam chest (verb)	chamber (verb)
	place in a chamber