The short answer is you really should get a contractor to determine the proper size of HVAC equipment needed. To calculate the proper size of heating and cooling equipment for your home requires use of an engineering procedure such as ACCA/ANSI Manual J. Using short-cuts or rules-of-thumb typically results in equipment that is incorrectly sized for your home. Your contractor should determine the right size for your HVAC equipment by using ACCA/ANSI Manual J or an equivalent sizing calculation tool that takes into account specific information about your home. Homeowners who are interested in sizing calculations can purchase the procedures from Air Conditioning Contractors of America (ACCA) (Manual J-8 Abridged Edition is $64).
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energy efficient products
ENERGY STAR products are independently certified to save energy without sacrificing features or functionality. Saving energy helps prevent climate change. Look for the ENERGY STAR label to save money on your energy bills and help protect our environment.
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Improving your home's energy efficiency with ENERGY STAR can help to lower high energy bills, improve comfort and reduce greenhouse gas emissions. Learn about the many ways to save in your home and track your progress with "My ENERGY STAR" - your new dashboard to savings.
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A new home that has earned the ENERGY STAR label has undergone a process of inspections, testing, and verification to meet strict requirements set by the US EPA. ENERGY STAR certified homes use 15-30% less energy than typical new homes while delivering better comfort, quality, and durability.
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