HVAC (heating, ventilation, and air conditioning) encapsulate all the Heating, ventilation and air conditioning service available.
Few Basic terms in the industry
BTU – British Thermal Unit. The quantity of heat required to raise 1 pound of water by 1 degree Fahrenheit.
SEER – is an abbreviation for Seasonal Energy Efficiency Rating. It is the most commonly used measure of the efficiency of consumer central air conditioning systems. (EER, or Energy Efficiency Rating is the most commonly used measure of efficiency for commericial air conditioning systems.)
CFM – Cubic feet per minute, which is a measure of the volume of air flowing in a system
Forced air systems are more commonly used in the industry these days for these main reasons:
- Better Air conditioning effects
- Energy savings for Up to 15-20%
- Even Conditioning
Utilizes heat recovery ventilation systems that employ heat exchangers to recover sensible heat from exhaust air , this process done by transfer of energy to the incoming outside fresh air.
Allowing Vapor Compression Refrigeration cycles producing cold air temperature using heating pump to move hot air instead of converting temperatures.
Performance is measured by EER (Energy Efficiency Ratio) and more commonly used by SEER (Seasonal Efficiency Ratio) to indicate performance and efficiency of the Unit.