Air handler
Definition to come.
Where it comes up
- Home ventilation
Fresh air, bathroom and kitchen fans, range hoods, and ERVs and HRVs
- Air filters and air cleaners
Furnace filters, MERV ratings, changing filters and what air cleaners can do
- 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
- Refrigerants and the rules
R-22, R-410A, newer refrigerants, certification and leaks
- Moisture and mold
Where mold grows, how to keep it dry, and when to call a professional