medmike
01-01-05, 07:29 PM
If its cold out (mid 20's or colder), my downstairs will not get above 68 F, and upstairs is colder. Here's my set up (house built 1 year ago).
Furnace=Tappan G6RC 100,000 btu, heat blower speed set to default med-high speed (4 speed)
House square feet = 2,800 ft
Layout= Great room is 2 stories (=20ft high) flat ceiling about 20ftX12ft.
Have 3 upstairs bedrooms above the dining room,kitchen and garage.
Basement is unfinished.
Of note on duct setup is I have 8 cold air returns in great room (4 on floor and 4 are about 10 feet up) with 3 heat vents along south wall where windows are.
Have one heat vent to room above garage and 2 heat vents in main part of master bedroom (another is located in walk-in closet). The master also has 4 cold air returns (2 on floor and 2 up by 8 ft celing).
The coldest room upstairs has one heat vent with 2 cold returns
I also checked the temp out of ducts and show that the temp on 2 of them upstairs are around 68-70 deg while the rest upstairs show high 80's---> Turns out the 2 with low temp have the duct runs from the basement up thru outside walls (up to code?). One of these is sole heat vent to coldest bedroom!
Last note is insulation in my attick looks like around 8 inches of blown in fiberglass--not sure how much of this is the problem.
So is it me or is there too many returns.....and should ducts be run thru outside wall?
Any help is appreciated.
ps--I just checked the dampers a few weeks ago and found some of them to be partially closed....what would be the reason for this? I opened all of them all the way and got some warmer downstair rooms (such as utility room that was always cold and a downstairs bathroom that could have been a meat locker). But the problem of not getting above 68 deg is the same, with colder upstairs as described
Furnace=Tappan G6RC 100,000 btu, heat blower speed set to default med-high speed (4 speed)
House square feet = 2,800 ft
Layout= Great room is 2 stories (=20ft high) flat ceiling about 20ftX12ft.
Have 3 upstairs bedrooms above the dining room,kitchen and garage.
Basement is unfinished.
Of note on duct setup is I have 8 cold air returns in great room (4 on floor and 4 are about 10 feet up) with 3 heat vents along south wall where windows are.
Have one heat vent to room above garage and 2 heat vents in main part of master bedroom (another is located in walk-in closet). The master also has 4 cold air returns (2 on floor and 2 up by 8 ft celing).
The coldest room upstairs has one heat vent with 2 cold returns
I also checked the temp out of ducts and show that the temp on 2 of them upstairs are around 68-70 deg while the rest upstairs show high 80's---> Turns out the 2 with low temp have the duct runs from the basement up thru outside walls (up to code?). One of these is sole heat vent to coldest bedroom!
Last note is insulation in my attick looks like around 8 inches of blown in fiberglass--not sure how much of this is the problem.
So is it me or is there too many returns.....and should ducts be run thru outside wall?
Any help is appreciated.
ps--I just checked the dampers a few weeks ago and found some of them to be partially closed....what would be the reason for this? I opened all of them all the way and got some warmer downstair rooms (such as utility room that was always cold and a downstairs bathroom that could have been a meat locker). But the problem of not getting above 68 deg is the same, with colder upstairs as described