My furnace is in the attic so all my supplies are returns are in the ceiling. Works awesome in the summer but in the winter the floor is freakin cold. Especially with most of the floors being tile.
I have a 2nd zone for my 2 bedrooms upstairs they each have high returns. I notice they suck a bunch of cold air under the door. Not as much worried about these. They’re both 10” flex and if I decide it’s necessary I can figure that out pretty easily. Going to install some door sweeps for the time being.
Anyway I have a single return in the ceiling 14x32 and I believe 16” flex runs to it. My furnace blower puts out 1200cfm
But how do I get that much cfm low? Without having to pan out 9-10 2x4 walls or boxing something out?
My feet would appreciate any info thank you
I have a 2nd zone for my 2 bedrooms upstairs they each have high returns. I notice they suck a bunch of cold air under the door. Not as much worried about these. They’re both 10” flex and if I decide it’s necessary I can figure that out pretty easily. Going to install some door sweeps for the time being.
Anyway I have a single return in the ceiling 14x32 and I believe 16” flex runs to it. My furnace blower puts out 1200cfm
But how do I get that much cfm low? Without having to pan out 9-10 2x4 walls or boxing something out?
My feet would appreciate any info thank you
source https://hvac-talk.com/vbb/showthread.php?2226256-Retrofitting-low-return&goto=newpost
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