Arctic Dual Hood for Heat Recovery Ventilation This project aims to develop a new consumer product for ventilation systems: The Arctic Dual Hood. Dual hoods are vents that combine the ventilation intake and exhaust into a single wall penetration; they are intended for Heat Recovery Ventilation and Energy Recovery Ventilation (HRV/ERV) systems. Dual hoods make…
Evaluating Ventilation Systems & IAQ Indoor air quality is one of the greatest challenges in cold climate homes. Not only do people spend more time indoors, but they also tend to live in more efficient, airtight homes that can trap excess moisture and pollutants indoors if not properly ventilated, leading to problems for the both…
Three-Stage HRV Evaluation In Alaska and Canada, the main defrost strategies for heat recovery ventilators (HRVs) involve recirculating return air across the heat exchanger core and back into the supply air for the house. In cold climates, this type of frost protection system can undermine ventilation standards. To overcome this issue, continuous ventilation systems such…
Healthy Home in Alaska CCHRC partnered with the Alaska Housing Finance Corporation (AHFC) on the Healthy Homes Initiative in Fairbanks and Hooper Bay in 2004-2005. This was a two-year project that included the University of Alaska and state weatherization agencies. The purpose of the program was to demonstrate cost-effective, preventative measures to correct health hazards…
Energy Recovery Ventilators in Cold Climates Energy Recovery Ventilators (ERVs) exchange stale indoor air with fresh outdoor air, recovering heat and moisture from the exhaust air and transferring it to supply air. Heat Recovery Ventilators (HRVs), on the other hand, only recover heat from exhaust air and thus dry out the indoor air. In a cold dry…
Bath Fan Installation Best Practices CCHRC will test five Panasonic WhisperGreen Select bath fans at the Research and Testing Facility and evaluate runtime, relative humidity, and temperatures in the ducts. A final report will document best practices for installing bath fans in a cold climate. Resources TitleTypeResource LinkBathroom Fan Best PracticesSnapshotsDownload Partners Related Projects
Little Ventilation Project This project looks at ventilation systems that can improve indoor air quality in small homes while limiting energy use. While the average home in much of rural Alaska is smaller than 1,500 square feet, current ventilation systems are not always well-suited for thise size homes. Because they sometimes deliver too much cold…
