In order to properly size an HVAC system for a home or business, a load calculation must be performed. This calculation takes into account the building's size, insulation, windows, and climate to determine the heating and cooling needs of the space. Once the loads have been calculated, the HVAC system can be sized to meet those needs.
There is no definitive answer to this question as there are many different ways to do a load calculation for hvac services. However, some methods for doing a load calculation include using an hvac load calculator tool, using hvac software or doing a manual calculation.
After doing a load calculation, it is important to select the proper size HVAC system to meet the needs of the home. The load calculation will help to determine the proper size system needed and the type of system that will work most efficiently.