2 t-Stats 1 Unit?


Old 11-26-02, 04:35 PM
Visiting Guest
Posts: n/a
Question 2 t-Stats 1 Unit?

I have 1 HAVAC Unit I am Installing for a split level house. I was concerned since part of the downstairs is sub-terrainian it will have different heating/cooling needs then the upstairs, maybe only a 10 degree difference at most ,Im guessing. Anyway my question is since the supply side is not at all set up on different zones but the returns are split and easy to get to ,can I control the 2 zones with dampers on the return side.
Sponsored Links
Old 11-26-02, 08:50 PM
GregH's Avatar
Super Moderator
Join Date: Jan 2001
Location: Manitoba
Posts: 9,930
Upvotes Received: 5
You cannot control the air volume to the different areas by restricting return air. If you try to do this you will increase the velocity in the open RA duct and it will get noisy. If you can't install balance dampers in the ducts you might try damper style grills in the supply air.

I have that problem myself in my own two story house. Finished basement with no access to ducts. The damper grills don't close completely, so I put a garbage bag in three of them. Keeps the temperature just right in AC season.

Pretty fancy eh!
Old 11-27-02, 05:23 AM
Visiting Guest
Posts: n/a

Thanks Greg ,that works for me ,I like using the kiss method
Old 11-27-02, 11:34 AM
Ed Imeduc's Avatar
Join Date: Aug 2002
Location: Mountain Williams Missouri
Posts: 18,389
duct work

Sometimes if you dont have a good duct layout where you can put a balance damper in for up and down we have the blower run all the time. It sure helps.Also good registers that you can close down some that will help put more heat or ac up or down as you need it like Gregh said dont cover any of your cold air returns ED

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes