Intalled with 150 cfm erv unit through cement board siding. Concept is good however when hooking insulated flex R8 we had to remove insulation at connections due to spacing. Im still not sure how water is prevented from entering exhaust, i'm pretty sure this won't be a issue. I't was nice marking out 1 hole instead of 2. Procede with caution with this product.
Clj79
Greenville SC
2 years ago
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