COVID-19 Update:

To protect the health of our staff and our customers, Efficiency Vermont offices are closed to the public. We have cautiously begun scheduling project related site visits when required. You can find more information on our safety protocols here.

We know that you need support in reducing energy costs now more than ever, and we will continue to launch new offers and programs over the course of the summer. In the mean time, our customer support team is available to help you remotely. Contact us at (888) 921-5990 or

Home Fans and Vent Hoods

Whole-house fans pull incoming air through your entire home and out through the attic or roof. In kitchens, range hoods remove cooking smoke, grease, and air pollutants. And in the bathroom, exhaust fans prevent mildew by removing heat and moisture. Today it’s even possible to find bathroom fans that work like whole-house fans—running continuously and varying their speed to match your home’s changing ventilation needs.

  • Be more comfortable in your home or small business
  • Remove allergens, smoke, and gases
  • Prevent moisture, mold, and rot in attics, roofs, and bathrooms

Energy Recovery Ventilation (ERV)

Modern energy-recovery ventilation systems maximize savings even more for home- and business-owners. In the winter, they transfer heat from the warm exhaust air to the cold incoming air, minimizing heat loss. The process reverses in the summer months to preserve conditioned air and minimize heat gain. These systems can recover 70-80% of the energy used to heat or cool air in homes or commercial buildings—though that can vary based on climate.

  • Ventilation recovery systems use air-exchangers to minimize heat (or cooling) loss
  • Improve air quality and safety by decreasing contaminants and pollutants in the air
  • Boost employee and customer comfort and employee well-being

Commercial and Industrial Ventilation

Commercial ventilation systems vary in complexity based on the needs of the business. For example, manufacturers have systems tied to industrial processes (in addition to their standard HVAC) and restaurants may have variable-speed hood fans with controls that change the level of ventilation based on activity. Regardless, the key to proper ventilation in a commercial space is to bring in only as much outdoor air as needed (when and where it’s needed) to maximize comfort and energy savings.