Forced-air system
Definition to come.
Where it comes up
- Gas furnaces
How a gas furnace heats, what AFUE means and the signs worth a closer look
- Your home's system as a whole
How heating, cooling, air and controls fit together in one home
- Airflow and ducts
Supply and return, static pressure, leaky ducts and when duct cleaning helps
In the machines
- Forced-air system
A system