2. Air stratification is a condition caused by a single zone A/C system.
Wrong! - Air stratification occurs when limited air flow allows hot air to rise and cold air to fall, developing a noticeable temperature layer. The solution is increased air movement.

3. Keeping your A/C fan on automatic will save energy.
Wrong! - Keeping the fan in the on position will increase air flow and comfort.

4. Lowering the thermostat temperature setting reduces the air temperature coming from the registers.
Wrong! - The outlet temperature remains constant at 55-60 degrees Farenheit.

5. Having your returns positioned low on the walls is preferred.
Wrong! - Since hot air rises, a high return position is preferred.

6. In areas of extremely high humidity, swamp coolers or evaporative cooling systems are commonly used.
Wrong! - Evaporative cooling systems are only effective in hot, dry climates.

7. It is better to purchase an oversized A/C system.
Wrong! - An oversized unit will cool the air before it has dehumidified it, causing a cool, damp atmosphere.

8. A set back thermostat for a central A/C saves energy by shutting off the system automatically at preset times.
Wrong! - It saves energy by raising the temperature, not by shutting down the system.

9. The most common cause of coil icing with room air conditioners is over use.
Wrong! - The most common cause is dirty or clogged filters.

10. During a heat pump's cooling mode, it operates exactly like a central A/C system.
Wrong! - True!