Here are some A/C tips for homeowners to maximize comfort and energy efficiency:1. Set the temperature wisely: Set your thermostat at an appropriate temperature. The U.S. Department of Energy recommends setting it at 78°F (25°C) for cooling efficiency. Each degree lower can increase energy consumption by 3-5%. 2. Use a programmable thermostat: Install a programmable thermostat to adjust the temperature based on your schedule automatically. This helps save energy by reducing ...