13 posts / 0 new
Last post
drobles44
cold room

My daughters bedroom is the coldest room in the house. We had an energy audit done but they said the room is fairly insulated. They used an infra-red camera and it did not show heat loss. But I have to disagree since the room is cold. We have forced air. Winters in Colorado can be fairly frigid and it affects her asthma. When the heat comes on in the house it does not seem to come out as forceful from the vents in my daughters room as it does the other vents in the house.
What seems to be the problem?

Sten
Re: cold room

On your Main Trunk coming off your furnace there are what is called takeoffs, then the supply run comes off of it. Inside the takeoff is a damper, make sure the damper going to that room is opened. If that doesn't work let us know, Good Luck!!! :)

drobles44
Re: cold room
Sten wrote:

On your Main Trunk coming off your furnace there are what is called takeoffs, then the supply run comes off of it. Inside the takeoff is a damper, make sure the damper going to that room is opened. If that doesn't work let us know, Good Luck!!! :)

Sten, thank you for youir reply.
There is a room below my daughters room. Her room has two vents - one on the east side of the room and one on the south side of the room. The room in the basement has a big supply that leads to the east side of the room and nothing that would indicate takeoffs or dampers. I'm guessing the supply for the south side is in the ceiling of the basement because I don't see any duct work.

Am I missing something here?:confused:

drobles44
Re: cold room
jkirk wrote:

theirs a chance that the ductwork is getting clogged up with dust, or the seams in the pipe arent taped so its losing air pressure before it gets to her room thus the heat isnt reaching it to her room

Thank you for your reply.

I never thought of that. We have lived here for almost 5 years and have never had the vents cleaned out. We need to do that if only to reduce the allergens. Who knows when the last owners had it done.

When they did the energy audit they did the smoke test and ran the smoke by the exposed duct work and nothing showed air leakage.

What else might be the problem?

Sten
Re: cold room

You would have to have an awful lot of dust to block the supply air, I'm not saying that it couldn't happen but it's unlikely, and even more unlikely that just one supply run is blocked by dust.
When a smoke test is done for an energy audit they should introduce the fog to the inside of the ductwork and under low pressure to find leakage. That will also tell you if your having any supply problems. Is this the first year that your daughters room has been cold? Do you have a drop ceiling in your basement? Where is your furnace? Are there any supplies coming off the "BIG" supply in the cellar.? Are the supplies to the cold room in the ceiling, wall or floor? Can the supply grill be taken off easily? If it can I was just wondering if maybe there is something in there plugging it up? PostBack

Re: cold room

I have to agree- it really sounds like the vents and or ducts could be blocked. All that dust is not only causing a problem of not enough heat into her room, but also making her asthma worse. Eliminating the dust will also help with the asthma. Definitely look into getting them professionally cleaned.
_________
Networx.com
We provide the latest information on how to fix, renovate, and decorate your house using the least amount of resources for the best value.

winspiff
Re: cold room

I'm sure this could be a number of things:
- How many air handlers do you have? Are you sure you know? Sometimes you'll find an extra in an attic or basement.

- How often do you change the air filters on all of them?

- What speed is the air handler that feeds her room running at? (Low/High? Can it be increased?)

- There is a valve on the duct that runs to her room that controls the air flow. That valve may be partially closed. However, you can also put your hand up to her vent and compare it to others. How fast is her air blowing by comparison?

- Where is her room? Is it a corner room?

- Cleaning the ducts is certainly a good idea, and certainly should be done. However, don't neglect everything else.

drobles44
Re: cold room
Sten wrote:

You would have to have an awful lot of dust to block the supply air, I'm not saying that it couldn't happen but it's unlikely, and even more unlikely that just one supply run is blocked by dust.
When a smoke test is done for an energy audit they should introduce the fog to the inside of the ductwork and under low pressure to find leakage. That will also tell you if your having any supply problems. Is this the first year that your daughters room has been cold? Do you have a drop ceiling in your basement? Where is your furnace? Are there any supplies coming off the "BIG" supply in the cellar.? Are the supplies to the cold room in the ceiling, wall or floor? Can the supply grill be taken off easily? If it can I was just wondering if maybe there is something in there plugging it up? PostBack

Her room has always been cold. There is not a drop ceiling in the basement, that is where the furnace is. No supplies coming off BIG supply. Supplies are on floor. I took the cover off and tried to put my hand down there but couldn't. The air seemed to come out better with the cover off than on. The opening is about 12"x3". The vent cover on it now is about 5' long x 3" wide x 4" high.

drobles44
Re: cold room
Marcy Tate wrote:

I have to agree- it really sounds like the vents and or ducts could be blocked. All that dust is not only causing a problem of not enough heat into her room, but also making her asthma worse. Eliminating the dust will also help with the asthma. Definitely look into getting them professionally cleaned.
_________
Networx.com
We provide the latest information on how to fix, renovate, and decorate your house using the least amount of resources for the best value.

Yes, we will do that. Is that a yearly maintanence issue?

drobles44
Re: cold room
winspiff wrote:

I'm sure this could be a number of things:
- How many air handlers do you have? Are you sure you know? Sometimes you'll find an extra in an attic or basement.

- How often do you change the air filters on all of them?

- What speed is the air handler that feeds her room running at? (Low/High? Can it be increased?)

- There is a valve on the duct that runs to her room that controls the air flow. That valve may be partially closed. However, you can also put your hand up to her vent and compare it to others. How fast is her air blowing by comparison?

- Where is her room? Is it a corner room?

- Cleaning the ducts is certainly a good idea, and certainly should be done. However, don't neglect everything else.

Thank you for your reply.
- I'm not sure what an air handler is or if we even have one?

- We change the filter on the furnace every 3 months.

- The ducts that run to her room are inside the ceiling in the basement. I wouldn't be able to get to them unless I took out the ceiling. The air coming out of the vents in her room seems to be less then the air that comes out of the vents around the house. When I took of the cover to check for a blockage the air seemed to come out better. I couldn't put my hand in the duct. What could I use to check for a blockage?

Sten
Re: cold room
drobles44 wrote:

Thank you for your reply.
- I'm not sure what an air handler is or if we even have one?

- We change the filter on the furnace every 3 months.

- The ducts that run to her room are inside the ceiling in the basement. I wouldn't be able to get to them unless I took out the ceiling. The air coming out of the vents in her room seems to be less then the air that comes out of the vents around the house. When I took of the cover to check for a blockage the air seemed to come out better. I couldn't put my hand in the duct. What could I use to check for a blockage?

An air handler is used in an A/C system with the Condenser that's located outside, in your case your Furnace is doing the Air Handling or moving the air via the blower motor which is located inside your furnace. All I can say is to find the damper that's located it the takeoff that comes off of the main trunk. The reason that I say this is because all of your other supplies are working fine. The supply to her room may also have become separated from the takeoff or the boot (as it's called) which the register goes into. I can't believe they boxed everything in so you can't even do any Air Balancing within the System.

Try this, since you can't get at the dampers that are in the takeoffs you can close the registers in the other rooms off a little bit, they also have dampers in them. Its same thing as closing the take off dampers but they can be moved just by hitting the lever with your foot. This should force more air to your Daughters room. Good Luck !!! :)

Post Back to let us know how you made out

Pages

TV Listings

Find TV listings for This Old House and Ask This Old House in your area.