Topic
HVAC
HVAC stands for heating, ventilation and air conditioning: the furnace, coil, ducts, refrigerant loop and condenser that keep a home comfortable. It is one connected system, so a problem in one part often shows up as a symptom somewhere else. The guide here models a full residential split system in 3D and connects each symptom to its possible faults and costs.
1 guide on HVAC.