Unit Conversion Factor HVAC Engineer must Know! This table convert units from customary to metric. Every HVAC engineer need to know these conversion to work quickly.
The base units are second, meter, kilogram, ampere, kelvin, mole and cendela which measure seven base quantity respectively. However, only several units that HVAC engineer need to know, which is Energy, Pressure, Flowrate, Temperature, Pressure etc.
Important Pressure Units: PSI, Bar, Pa, In.wg
Most frequently met Flow Rate Units: L/s (Liter per Second), CMH (Cubic Meter per Hour), CFM (Cubic Meter per Minute) , GPM (Gallon per Minute)
Useful temperature unit: F and C
Unit Conversion for Power: Btu/h, kW (kilowatt), HP(Horse Power), ton
Common unit of length: ft(feet or foot), m (meter), inch