Window Units

Window air conditioners help take the edge off summer heat by cooling individual rooms without running ductwork throughout the house. Whether you’re looking to cool a bedroom, home office, or living room after a long day outside, choosing the right window AC unit starts with room size. Measure the room’s length and width, then check the manufacturer’s recommended square footage and cooling capacity, listed in British thermal units, or BTUs. A sunny room, high ceilings, or an open doorway to another space can increase cooling needs. Bigger isn’t always better, though: an oversized air conditioner may cool the room too quickly to remove enough moisture, leaving the air feeling clammy. Along with BTU ratings, compare energy efficiency information and sound ratings, especially for sleeping areas. Features such as adjustable fan speeds, timers, and temperature controls are worth considering as you compare window units for your space. Getting a good fit matters just as much as picking the right cooling capacity. Before choosing a window air conditioner, measure the window opening and confirm that the window style, frame condition, and available support meet the unit’s installation requirements. Check the electrical requirements, too, since window AC units can differ in voltage, amperage, and circuit needs. Follow the manufacturer’s directions for mounting hardware, support brackets, weather sealing, and drainage, and plug the unit directly into a suitable wall outlet rather than an extension cord or power strip. Keep indoor vents clear of curtains and furniture, and leave the required clearance around the outdoor portion so heat can escape. Once your room air conditioner is in place, clean or replace its filter as directed and check the window seal for gaps. Closing nearby windows and shading sun-facing glass can also help your window unit keep the room comfortable through hot afternoons.