cold air returns

[panski master]

I am in the process of finishing my basement and was wondering about cold air returns. I don't have any in the basement and plan on putting them in but I have no room on top of the box (where the returns meet up from upstairs) to add any. I was thinking of using an existing one from upstairs and putting a T in the line and run it to the two bedrooms in the basement. Will this work and is there a code that says I can't do that? I live in clearwater (wright County)

[panski master]

keith kowalczyk

[fishandshroom]

Just get air from wherever you can perhaps use flex duct or if you have an upflow tap into the side of the furnace. In the basement you can also just put a big return (30x8) in the main hallway and undercut the bedroom doors an inch or two.

[fastkaw]

panski master

How many rooms?

How big?

What's the basement going to be used for?

DO NOT tee to your existing returns in the ceiling.

Returns in the basement should be just off the floor. I would recommend that

you put registers on the returns in your basement. That way you can close them

in the summer.