History
ZONEFIRST is the first company that successfully developed and marketed HVAC Zoning Systems and is now a leading manufacturer of these HVAC zoning dampers and systems. Richard Foster developed the first automatic motorized dampers, registers and diffusers to be thermostatically controlled in the late 1950's. In 1964 he founded Trolex Corporation and the start of the well known trade name Trol-A-Temp. In 1999 the Trol-A-Temp brand was acquired by Honeywell. In 2004, Trolex reentered the HVAC market as ZONE-A-TROL and later the ZONEFIRST trade name.
Specialties
Manufacturer of Energy Saving Zone Damper Systems for HVAC