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The Water Cooler
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<blockquote data-quote="swampratt" data-source="post: 1353217" data-attributes="member: 15054"><p>I have installed lots of duct pipe..commercial and residential...</p><p>In my own house if i have to Y off a single duct there is certain sizes to play with...</p><p>Bathrooms usually can get by with 4" single...and you can Y off a 6" into 2 4" ducts....</p><p>bedrooms i like to have 2 6" ducts....an 8" can supply enough air for 250sq feet...you can Y off an 8" into 2 6" ducts...</p><p>Flex duct can be purchased at lock supply....it is insulated and much quieter than solid....any better nah...measure your plenum box hole where they have the duct in question hooked up....if you are feeding rooms and Y ing off it should be an 8"....minimum......you will actually get less air flow if you block off other registers...weird how those squirel cage fans work....it will actually cavitate if you do not let it flow out...</p><p></p><p>How is the intake side of the system...got a good filter...and is the A coil clean and free of dusty matted debris...or can you even acess it to check</p><p></p><p>Hope that helps ..Jeff</p></blockquote><p></p>
[QUOTE="swampratt, post: 1353217, member: 15054"] I have installed lots of duct pipe..commercial and residential... In my own house if i have to Y off a single duct there is certain sizes to play with... Bathrooms usually can get by with 4" single...and you can Y off a 6" into 2 4" ducts.... bedrooms i like to have 2 6" ducts....an 8" can supply enough air for 250sq feet...you can Y off an 8" into 2 6" ducts... Flex duct can be purchased at lock supply....it is insulated and much quieter than solid....any better nah...measure your plenum box hole where they have the duct in question hooked up....if you are feeding rooms and Y ing off it should be an 8"....minimum......you will actually get less air flow if you block off other registers...weird how those squirel cage fans work....it will actually cavitate if you do not let it flow out... How is the intake side of the system...got a good filter...and is the A coil clean and free of dusty matted debris...or can you even acess it to check Hope that helps ..Jeff [/QUOTE]
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