Heating system which circulates a heated fluid, usually water, through baseboard coils by means of a circulating pump which is controlled by a thermostat.

Refers to temperature control systems that circulate heated or cooled water to maintain comfort.

Any form of hot water based heating system is referred to as hydronic.

contraction of hydro and electronic, usually applied to radiant in-floor heating systems and their sensors and pumps.

A ventilation system using heated or cooled water pumped through a building.

Usually refers to a hot water heating system.