What is a BTU and what does it mean to you? In winter or summer, the number of BTUs added or removed from the house, respectively, is critical to indoor comfort. It’s also an important element of the calculations utilized for efficiency rating that help you evaluate the most energy-efficient heating and cooling equipment when you’re shopping for an upgrade.
BTU is short for British Thermal Unit. It’s the universally accepted measurement for a unit of heat energy. In winter, BTUs of heat energy are added to the house by your furnace or other heating system to make the premises comfortably warm. In summer, conversely, your air conditioner extracts
BTUs of heat from indoor air and moves them outdoors to keep things cool. When expressed in raw numbers, the amount of BTUs a furnace generates or an air conditioner extracts is referred to as the unit’s “capacity.”
The BTU also figures prominently in both the AFUE (Annual Fuel Utilization Efficiency) furnace rating as well as the central air conditioner’s SEER (Seasonal Energy Efficiency Ratio) rating.
Ask the experts at Powers Heating & Air for more about how the BTU affects indoor comfort and operating costs year-round.
Our goal is to help educate our customers in Peachtree City, Georgia and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about other HVAC topics, download our free Home Comfort Guide or call us at 770-487-2040.
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