What Is the 20 Rule for Air Conditioners? Explained Simply
❄️ What Is the 20 Rule for Air Conditioners ? (Spoiler: Your Thermostat Isn’t a Magic Wand) If you’ve ever walked into your house on a scorching summer day, stared at your thermostat, and thought, “I’ll just set this thing to 60 and cool down faster,” then you, my friend, need to know about the 20 Rule for air conditioners . The 20 Rule, in Plain English The “20 Rule” says your air conditioner can only cool your home about 20 degrees Fahrenheit below the outdoor temperature . So if it’s 95°F outside, don’t expect your AC to hit 65°F indoors. Realistically, you’ll get down to about 75°F — which, let’s be honest, still feels like heaven compared to melting on the sidewalk. Why the Rule Exists (Hint: Physics Doesn’t Care About Your Feelings) Air conditioners aren’t magic machines — they’re designed to move heat, not defy the laws of science. Pushing your AC to do more than a 20-degree drop means: It runs nonstop (like a treadmill with no “pause” button). Your energy bill...