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The Zehnder Ventilation System: Running The Ducting

Tight houses need air exchange. Period. Our target air exchange rate for this house is less than 1 ACH50 and with a goal like that, a clean source of fresh air will be necessary.

This was our first time using the Zehnder system. We’ve relied on another heat-recovery ventilator(HRV) product in the past that we’d chosen for cost and speed of installation. One of the knocks against this other system is the operating noise. I was interested in the Zehnder for its silent operation, the 84% heat recovery efficiency, and that I could spec an energy-recovery ventilator(ERV).

Read the full article on http://www.finehomebuilding.com/2017/10/23/zehnder

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