Oversized equipment
Definition to come.
Where it comes up
- Gas furnaces
How a gas furnace heats, what AFUE means and the signs worth a closer look
- Central air conditioning
The parts of a split system, what is normal and the signs of trouble
- Window and wall air conditioners
Window, through-the-wall and PTAC units: sizing, power and care
- Indoor humidity
The right humidity range, humidifiers in winter, dehumidifiers in summer
- Airflow and ducts
Supply and return, static pressure, leaky ducts and when duct cleaning helps
- Sizing heating and cooling
Why size matters, load calculations and short cycling
- What you notice and what it can mean
No heat, short cycling, noises, smells, water, ice and high bills, and what they can mean
- Chicago's climate
Degree days, average temperatures and what they ask of your equipment
- Repair or replace
Age, repairs and bills, R-22 systems, efficiency, sizing and what to ask
- What affects the cost
Size, efficiency, ducts, permits and refrigerant: what moves the cost of HVAC work