A place for a domestic fire, especially a grate or hearth
at the base of a chimney
Tess cleared the ashes from the fireplace
a big open fireplace with a brick surround
a cast-iron stove was installed in the old fireplaceFrom Oxford Dictionary
Some say the achitectural "fireplace" is the actual thing (the first created if you will), made of stone, with a chimney, and so on... But it seems there is no consensus about the definition, anyway...
Like in Portuguese sometimes we have in English many options to say the same thing. Like Simon Vasconcelos
has already answered when it comes to electric, gas, different types of so called "fireplaces", most in British English the name "fire
" seems to be very well acceptable.
Sometimes context is everthing and just to remind you of something important "English is a sophisticated language in which you avoid the use of too many words when it is possible, to be concise is a very appreciated quality in this wonderful language."
That's my opinion, right!
The following link is about the definition of fireplace.Fireplace definition