HEATING, VENTILATION AND AIR-CONDITIONING (HVAC) SYSTEMS
Heating, ventilation and air-conditioning (HVAC) systems regulate room temperature, humidity and airflow to maintain a comfortable indoor environment (HVAC Home 2006). They can range from a simple electric baseboard heater to a complex system with ducts and lobed grilles for high mixing ventilation. Due to their importance in removing air pollutants, odours and stale air, it is necessary to negotiate balance between their cost and efficiency.
Before choosing a system it is vital to consider the size of the dwelling, its spatial configuration, its exterior envelope and the budget. Such factors can dictate the size and type of a chosen system and influence the required air velocity, ...