solar collector vs solar furnace

solar collector and solar furnace both are nouns.

Word	Noun	Adjective	Verb	Adverb
solar collector	Yes	No	No	No
solar furnace	Yes	No	No	No

As nouns, solar collector and solar furnace are synonyms defined as:

solar collector and solar furnace: a concave mirror that concentrates the rays of the sun; can produce high temperatures

Other synonyms of solar collector include solar dish.

solar collector (noun)	solar furnace (noun)
a concave mirror that concentrates the rays of the sun; can produce high temperatures	a concave mirror that concentrates the rays of the sun; can produce high temperatures