As long as there s an unobstructed path e g no door that can be closed the upstairs doesn t need a dedicated return.
Air duct attic to basement.
In come cases duct condensation can be a sign of a duct leaking air which reduces your a c unit s efficiency.
Installing your hvac unit in the attic can free up space for these uses.
For instance use a flexible duct from the air handler through the attic to the point you ve chosen to start downward then switch to round or rectangular sheet metal from the attic to the basement.
Ductwork is commonly made.
You ll need to find a corner such as in a closet to build a duct chase to get ducts from basement to attic.
1 10 5 25 per foot insulated flexible duct 4 to 16 diameters used as branches or in radial duct attic systems 2 30 13 00 per foot round and oval sheet metal duct 3 to 8 diameters typically used for trunks in small homes and.
The 2nd duct is the return duct that attaches to the return air vents and draws the stale air out of the house through the filter and conditions it again to return.
You ll also need to provide a return path from a basement air handler or main level return to the second floor.
Cost of installation supplies.
In addition leave any doors to the upstairs open if possible and safe to allow the basement to adjust to the same temperature as the remainder of the home.
Step 3 install insulating duct wrap around all metal ducts to help insulate them from the basement temperature.
Here are the itemized costs for the most common types of ductwork and supplies needed to complete installation.
One is the conditioned supply air that serves the house with warm or cool air attaching to the vents in every room.
Without all the furnace air conditioner hardware and ugly ductwork the basement can be a great spot to put a rec room a home theater or even an extra bedroom or two.
How to install basement ductwork.
If you own an older home or your ductwork is not properly maintained ductwork sweating is more likely to become an issue as both the temperature and humidity levels rise.
Either way removing humidity from the air in your attic might be the most cost effective way to handle your problem.
Check any air vents in the basement and ensure that they are full open.
Excessive moisture in the air.
Final thoughts on condensation on ductwork at the end of the day there are really only two causes for condensation on ductwork.