this is kind of urgent, for me that is, as drywall goes up next tuesday. we had some duct work moved / minimized and now air flow is very limited at the rigister in my kids room. like none coming out.
first i need some HVAC 101 teaching. in my picture is the cold air return on the left? if so then the large duct leading from it should only have cold air returns connected to it? this side and duct is cold to the touch.
the right side would seem to be the actual furnance that distributes the hot air? this side and duct leading from it is warm to the touch.
we now have a register that is producing no hot air. here is my thought, the HVAC guy hooked up the heating duct to the cold air return. but i am not sure what is the cold air return and what should be running off it?
i need some help. thanks.
later.

first i need some HVAC 101 teaching. in my picture is the cold air return on the left? if so then the large duct leading from it should only have cold air returns connected to it? this side and duct is cold to the touch.
the right side would seem to be the actual furnance that distributes the hot air? this side and duct leading from it is warm to the touch.
we now have a register that is producing no hot air. here is my thought, the HVAC guy hooked up the heating duct to the cold air return. but i am not sure what is the cold air return and what should be running off it?
i need some help. thanks.
later.