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quote: The only other part necessary would be a suitable termination
cap. Broan makes a very good one, Model #636 but you should be
able to find a similar one at Home Depot, Lowe's. Remember the
shorter the better on a vertical installation but a run of up
to 20' should be fine. Also take care to install the rood cap
properly under the shingles to avoid a water problem. metalhd2
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The termination Broan makes #636 is an excelent choice for a dryer termination! Be sure to remove any screens in the hood to prevent clogging and climbing on to the roof again! (all dryers pass lint)
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quote:If its a long run of vent pipe, the warm moist air vapour will condense to liquid and build up in your pipe if it cools! I don't think that you want that running back into your dryer for obvious reasons! Czechmate
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Dryer vents are designed to be run as long as 50 ft! However rules apply. Each elbow = 4 ft of straight pipe! Running thru an un conditioned space like an attic the pipe should be insulated to insure the warm moist air does not condense and "rain" back down to your dryer.
Every Dryer passes lint, The lint sticks to the pipe and over time it builds up, This build up causes low air flow! You can tell if you have low flow by your drying times. If you have to dry for more than one 60 minute session you have poor air flow and you should check the venting!
All dryer vent should be run in 4 inch hard pipe, Avoid the flexible hose! (the coils in the hose cause turbulence that slows down air and cause long drying times)!
16x80
If you feel I have missed something or would like me to explain further please let me know!