Wednesday, January 20, 2010

Is ducted heating able to be turned down, in specific rooms, or does it control all of the house's heating?

I am set to move into a house with ducted heating, but it always seems that my particular room is colder than the other end of the house. Is this because different sections may be controlled separately?Is ducted heating able to be turned down, in specific rooms, or does it control all of the house's heating?
Yes!





Find where all of your ducting branches off from the main trunk line (in a basement, near the furnace, etc). On each of the smaller lines, there should be a little wingnut or maybe even a small handle that can be twisted about. This controls the damper that controls the amount of air that goes to that part of the house.





Typically, if the handle looks like it could cut across the duct, it means it's closed. In line with the duct's center, it's open. If you don't have handles, then look at the screw slot inside of the wingnut - if the slot is inline with the center of the duct, open, and if it looks like it's cutting across it, closed. You can adjust these to partially or mostly close off unused ducts or sections to your home, and you may want to mark them with a permanent marker as to which room they go to, and a 'winter/summer' setting.





This, combined with the register in the room itself, will regulate the amount of air going into any one room at any given time.





Keep in mind that closing off ducts close to the source will increase noise through the ducting, because it is not a tight seal when it is closed. You can eliminate air going to a room by closing the duct, closing the register, and purchasing those magnetic register covers at a home hardware store. By doing this, you'll drive more air to the open ducts, and you should get a better balance during the season that you're in.





Hope this helps!Is ducted heating able to be turned down, in specific rooms, or does it control all of the house's heating?
other than closing or opening the air grill, there is no way to increase or decrease the temp in individual rooms with central heat and air. the unit is only concerned with satisfying the temperature where the thermostat is. if some rooms are colder or warmer, it is usually due to the distance from the thermostat and the ability of the air to move freely from there to the unit.
You have some control by opening and closing the slats in the register, but most houses do not have more than one central heating unit. You can also get more control by controlling the air flow by opening and closing doors.
not usually, it is usually controlled by how wide or closed the vent is.
it's because the duct vents have not been balanced properly for airflow.

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