Guys i have a question on duct work in my house. The duct that is under house is rectangular and measure 30 x 11 for the return and 25 x 11 for supply that tapers down to 19 x 11. The ducts have insulation on the inside that is glued and tacked in place. Im trying to figure out if this duct work would support a 5 ton unit. The house has roughly 3400 square foot. The insulation in the ducts is what is puzzling me. Do i need to account for this when im trying to figure out cfms. Any help is appreciated
Anyone here experienced in A/c duct work!!
- Thread starter falcon43
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