Energy Recovery Ventilators (ERVs) and Heat Recovery Ventilators (HRVs) are balanced ventilation systems that remove stale, stagnant air from inside your house while adding back an equal volume of fresh outdoor air. As homes have become more tightly constructed and air-sealed to conserve energy, air stagnation and unhealthy indoor air quality have become acute. ERVs and HRVs not only ventilate with balanced air volume, but they also transfer heat. The advantages of both ERVs and HRVs depend largely on the status of air infiltration through cracks, gaps and other air leaks. Older, “leaky” houses typically benefit less from ERVs and HRVs than newer, airtight structures.
Donald P. Dick Air Conditioning Blog: Posts Tagged ‘Heat Recovery’
What’s the Difference Between ERVs and HRVs?
Tuesday, August 25th, 2015Choosing a Whole-House Ventilation System: What to Look For
Thursday, October 17th, 2013
The air quality in your Fresno area home is probably lower than you think. If you live in a newer home, or a tightly sealed older home, you may benefit from a whole-house ventilation system, which mechanically replaces stale, polluted indoor air with fresh, clean outdoor air. There are four major types of whole-house ventilation systems available, and this simple guide will help you choose the one that’s right for you.