How to Use It
Look up the term that blocks your next decision, then move back into the right guide while the meaning is still fresh.
This page works best as a support tool for sizing, setup, and troubleshooting. It is not meant to keep you browsing definitions after the actual choice is already obvious.
Most important habit
When two terms sound similar, focus on how each one changes runtime, comfort, drainage effort, or energy use in a real room.
Control Terms
Ownership Terms
How Terms Affect Real Performance
- Relative humidityTells you what the air feels like right now, but not whether the unit is correctly sized for the next spike.
- IEFChanges long-season operating cost more than it changes first-impression power.
- Drainage typeOften determines daily convenience more than a small capacity difference does.
Common Glossary Traps
- Confusing coverage with fitA coverage claim does not guarantee comfort in every room type or layout.
- Treating RH target like a universal ruleThe best setpoint shifts by space type, moisture source, and comfort expectations.
- Reading efficiency without runtime contextIEF matters most when the unit will run long and often.
Best Next Step
Back to the page that brought you here.
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