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  1. Based on ENERGY STAR’S Savings Calculator for a 3-ton 21 SEER/1O HSPF heat pump and programmable thermostat versus the industry standard 13 SEER/7.7 HSPF 3-ton heat pump and standard thermostat in St. Louis, M.O.
  2. Savings calculated by the U.S. Department of Energy. The savings percentage is greater for buildings in milder climates than for those in more severe climates.
  3. Green Builder Brand Index: The Green Builder Brand Index gauges builders’ likes and dislikes about products in the green construction market, from the best energy-saving appliances to the cars they like to drive on the job. Results in three distinct categories — traditional survey data, public sentiment, and market visibility or “mentions” — are averaged to derive a company’s final ranking among its peers. For more information about the Green Builder Brand Index, www.greenbuildermedia.com.
  4. Based on calculations from the U.S. Department of Energy’s Office of Energy Efficiency & Renewable Energy at https://www.energy.gov/eere/why-energy-efficiency-upgrades.