Kristi Appelhans, LEED AP
iss.kristi @
(208) 522-2224
Idaho Falls, Idaho

Heating, Ventilation and Air-Conditioning (HVAC)

  • High-efficiency equipment -  selecting equipment that operates at peak efficiency is part of an integrated green design that lowers energy use and operating costs. Both Energy Star and EERE have programs that provide minimum efficiency standards and/or ratings to help with these selections.
  • Hydronic radiant floor heating - these systems use radiant heat provided by continuous loops of underfloor warm water (heated by solar collectors or high-efficiency boilers). By reducing downward heat loss and using high-efficiency condensing boilers energy savings of up to 40% can be achieved. 
  • Ground source heating and cooling - by combining underground loops and heat pumps this system uses the relatively constant temperature of the earth to provide both heating and cooling.
  • Passive ventilation - one of the advantages of our cool, dry (and sometimes windy) climate is that we can implement the principles of cross ventilation and stack ventilation in combination with thermal mass and night cooling to provide comfortable, low-cost cooling and ventilation during the warm months.
  • Operable windows - windows that open are an effective tool to improve ventilation and cooling, giving users more control and making them more comfortable. When integrated into the HVAC design they can reduce cooling and ventilation requirements in the warmer months.
  • Heat recovery equipment - these systems are designed to optimize the recovery of heat from air that is being exhausted from a building and transfer it to the incoming cold air required for proper ventilation. Most effective in areas like ours with very cold winters.
  • Evaporative coolers - these units use evaporation to cool and humidify the air and are less expensive and more energy efficient than standard air conditioners.
  • Thermal comfort and control - HVAC systems that are designed for more individual control of thermal environments to maximize comfort and productivity.



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