Verify if the manufacturer's warranty remains valid if you purchase online and install it yourself. Many brands require installation by a licensed HVAC professional to keep the warranty intact.
Add 10% more BTUs if the room is very sunny, or 600 BTUs for each person beyond two occupants. buy ac unit online
Look for the SEER (Seasonal Energy Efficiency Ratio) rating. Higher numbers mean lower utility bills. The current U.S. minimum is 14, while top-tier models reach 26 or higher. Verify if the manufacturer's warranty remains valid if