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Our Zehnder Ground Loop, More Insulation and our Bright Vapor Barrier

Any house that is built to a high standard is designed to be very air tight.  For proper indoor air quality (IAQ), mechanical ventilation is needed (known as a heat recovery ventilator HRV) to exhaust stale air and introduce fresh outside air into the structure.  In our case, we chose to use a Zehnder unit […]

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