Have to get the air back to the furnace.
Return ducts in attic.
Sizing your return ducts usually depends on the size of your ducts as well as the size of your hvac system.
Hvac ductwork sizing is critical for proper heating and cooling in every room.
Return air leaks from attic if you measure supply and return temperatures at the.
I ve read a bunch of articles here and on bsc s site concerning ducts in the attic.
My 1948 ranch house has supply ducts in the crawlspace return ducts in the attic.
The duct board return air box is an r6 the duct board return air box is an r6 insulated box that installs traditionally in a ceiling.
Return ducts in my attic.
Return air ducting is necessary in almost every room.
Used as a central return vent box filter grill not included.
In more cases than not a 3 ton ac with the ducts in the attic has a ton or so of load that s just from the location of the ducts in the attic and the associated duct gains leakage etc.
I ve replaced the supply ducts and have insulated and encapsulated my crawlspace according to the best methods presented on this site.
The remaining 2 tons of capacity is at least 1 5x oversized for the actual 1 load.
Product is knocked down for shipping and must be.
Can accept any size collar up to 18 in.
These ductwork tips will help balance your air conditioning and heating system.