Ventilation & air handling

  1. Dedicated Outdoor Air Systems

    HVAC systems generally combine fresh outdoor air with recirculated air in the main air handler for conditioning and distribution into the interior space. This article explains an alternative approach that can save energy and improve occupant comfort at little to no additional cost.

  2. Demand-Controlled Ventilation

    A tremendous amount of energy is wasted ventilating spaces unnecessarily. Demand-controlled ventilation regulates the amount of outside air drawn in based on a building's actual occupancy, and can save as much as $1.00 per square foot annually. Find out if this approach will be effective for you.

  3. Duct Sealing

    Properly sealing ductwork improves comfort, prevents safety problems caused by carbon monoxide gas, improves indoor air quality, and saves energy. This article explains several different approaches to duct sealing and can help you identify the best option for your facility.

  4. Economizers

    Although economizers are designed to save energy, roughly half of all newly installed economizers don't work properly, and their problems increase as they age. Learn how you can ensure that your economizer is working properly and saving energy as expected.

  5. Fans

    Most fans operate continuously while a building is occupied and represent a major source of energy consumption. This article explains what types of fans are available, controls that can help reduce energy use, and how to make the best choice for your building.

  6. Maintaining Air-Handling Equipment

    Over 25 percent of the energy consumed in commercial buildings is used for heating and air-conditioning. Find out how to properly maintain air-handling equipment to maximize occupant comfort and realize energy savings.

  7. Underfloor Air Systems

    Underfloor air systems are growing in popularity in North America, and potential benefits are numerous: improved thermal comfort, enhanced indoor air quality, reduced energy use, and improved flexibility for office moves. Find out more about this approach and see if it makes sense for your building.