Fan coil unit

src: www.hammerair.com A fan coil unit (FCU) is a simple device consisting of a heating and/or cooling heat exchanger or 'coil' and...

Water softening

src: purifieradvisors.com Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resultin...

First Church of Christ, Scientist (Atlanta)

src: upload.wikimedia.org First Church of Christ, Scientist is the main congregation for Atlanta, Georgia's Christian Science community...

M1/M3 (railcar)

src: images.nycsubway.org The M1 and M3 are two similar series of electric multiple unit rail cars built by the Budd Company for the Long ...

X10 (industry standard)

src: images.techhive.com X10 is a protocol for communication among electronic devices used for home automation ( domotics ). It primarily u...

Central heating

src: www.magicthermodynamicbox.com A central heating system provides warmth to the whole interior of a building (or portion of a building) ...