question

[green_apprentice]

is there a reason why cold air is coming out from the return air vents. when the furnace is on . its not my house. i have steam heat. its my mother in-law house and she live too far for me to check it out .. i dont know to much about furnace but im willing to learn thanks guy..

[Edited by green_apprentice on 10-26-2005 at 10:32 PM]

[Senior Tech]

Ill bet they're in the ceiling?...Remember cold air falls, warm air rises.

[green_apprentice]

do you mean the way the ducts are run?

[Christheheatingdude]

Possible that a makeup air duct has been connected to the return trunk. Maybe you are feeling a draft from that?

[green_apprentice]

if it isa make up duct can it be fix to the point were she wont have cold air comming out.. thanks

[Christheheatingdude]

If it is a make up air causing the drafts, Skuttle makes a damper that should fix the problem. Though I doubt that it is, after re reading your original post, you said when the furnace is running. Could be improper ducting.

Is this house on a crawl space? If so, could also be return air ducting not sealed, or has openings...allowing cold air to infiltrate.


[Edited by Christheheatingdude on 10-26-2005 at 11:06 PM]

[green_apprentice]

furnace is in the basement. supply vents are on top of the space return vents are in the bottom.

[dash]

Does she have a zoned system,common problem with a bad design and zoning.

[green_apprentice]

no zone dash.

[liery]

also i want to know