Posted on January 13, 2014 by Scott Gibson
in Q&A Spotlight
Clark Agnew should be the envy of his neighborhood. He has a tight house, a high-efficiency wood stove with its own fresh-air intake, and access to free firewood. A heat recovery ventilator (HRV(HRV). Balanced ventilation system in which most of the heat from outgoing exhaust air is transferred to incoming fresh air via an air-to-air heat exchanger; a similar device, an energy-recovery ventilator, also transfers water vapor. HRVs recover 50% to 80% of the heat in exhausted air. In hot climates, the function is reversed so that the cooler inside air reduces the temperature of the incoming hot air. ) keeps indoor air healthy. What's not to like?
But, as he writes in a Q&A post at Green Building Advisor, the situation is far from ideal.
"I have run the stove about 6 or 7 times since we moved in," Agnew writes. "Three of those times it has backdrafted."