The evolution of residential heating and cooling systems has come a long way from the days of simple radiators and gravity-based systems. A significant leap occurred in the mid-20th century with the introduction of forced air systems, a development that not only transformed the HVAC industry but also redefined home comfort. This innovation marked a new era for HVAC contractors, necessitating new skills and knowledge, and continues to impact the field to this day.
The Pre-Forced Air Era
Before the widespread adoption of forced air systems, homes were primarily heated using radiators or gravity-based heating systems. These methods relied on the natural movement of hot air rising and cool air sinking. While effective at providing heat, these systems lacked the capability to circulate air throughout the home efficiently and could not be integrated with cooling systems. Continue reading “The Mid-20th Century Innovation That Revolutionized Residential Heating and Cooling”
