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Old 10-21-2011, 01:41 PM   #1
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Upstairs...HOT in summer, cold in winter


It seems my real big issue is not enough air conditioning or heat comes out upstairs in which makes it cold in the winter and hot in the summer. It feels great downstairs though. My house was built before it was required to have two units for a two floor house. I cant afford another unit so i need some other options. Any ideas?!?!

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Old 10-21-2011, 02:53 PM   #2
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Upstairs...HOT in summer, cold in winter


No insulation, leaking windows, poor duct design to begin with. Can be a number of factors why the house is not working with the hvac system as it should.

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Old 10-21-2011, 06:50 PM   #3
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Originally Posted by gregzoll
No insulation, leaking windows, poor duct design to begin with. Can be a number of factors why the house is not working with the hvac system as it should.
Well if you put your hand in front of the vent when the heat or air is coming out it is a dramatic difference from upstairs and downstairs. You can hardly feel it upstairs.
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Old 10-21-2011, 08:27 PM   #4
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Upstairs...HOT in summer, cold in winter


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Originally Posted by Dooggins1 View Post
Well if you put your hand in front of the vent when the heat or air is coming out it is a dramatic difference from upstairs and downstairs. You can hardly feel it upstairs.
That does not mean anything. If you can not feel it upstairs, you need to contact a hvac company or tech to come and look at the system to find out why. If anything, you may be better off placing a system on the second floor, just to serve that space.
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Old 10-21-2011, 08:31 PM   #5
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Upstairs...HOT in summer, cold in winter


Where's the inside furnace located, basement? Hard pipe or flex?

Take pics.
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Old 10-22-2011, 03:35 PM   #6
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Upstairs...HOT in summer, cold in winter


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Originally Posted by Doc Holliday
Where's the inside furnace located, basement? Hard pipe or flex?

Take pics.
It is located in the attic and the duct work is the round flex type. I'll try to get some pics in a min.
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Old 10-22-2011, 03:49 PM   #7
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Upstairs...HOT in summer, cold in winter


starve the 1st floor and make the second as the first floor was. with adjustments seal the discharge fles any place it is leaking..check the discharge duct on the furnace 360 all the way around it....take it you have ceiling return up on the second back to the furnace in the attic.the air should be the most closest o the furnace you have it backwards the duct dampers are starving the 2nd flr..where is the stat
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Old 10-23-2011, 07:16 AM   #8
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Upstairs...HOT in summer, cold in winter


Sounds like you need to have the flex replaced they cause restrictions in the air flow. If you run the blower in the "on" position that will help with the air circulation and make sure any and all filters/coils is clean and do you know how many CFMs you are moving and the size of the unit? you should be moving 400 CFM per ton.
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Old 10-23-2011, 07:50 AM   #9
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Upstairs...HOT in summer, cold in winter


do you have a return grill on the first floor that rises up into the attic or are the stairs the return
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Old 10-23-2011, 07:59 AM   #10
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Upstairs...HOT in summer, cold in winter


I have the same problem to only 1 room upstairs. It has 1 duct fed by a flex line and it gets minimal air flow. Changing that would be expensive due to tearing out walls, etc...

Do you think a duct booster fan would help?
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Old 10-23-2011, 08:54 AM   #11
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Upstairs...HOT in summer, cold in winter


JOE......did you try to cheat down on the other supplies that are doing bigtime air...the unit only puts out a certain CFM it might be to difussed to make it to that one room if its at the end of the supply run forget it...might want to retap it nearer the air handler so you don't need to ripe a wall and are all the connection tight with no air leakage
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Old 10-23-2011, 09:28 AM   #12
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Upstairs...HOT in summer, cold in winter


Quote:
Originally Posted by jkv
Sounds like you need to have the flex replaced they cause restrictions in the air flow. If you run the blower in the "on" position that will help with the air circulation and make sure any and all filters/coils is clean and do you know how many CFMs you are moving and the size of the unit? you should be moving 400 CFM per ton.
I'll check on the unit size but how do I check the CFM's?
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Old 10-23-2011, 09:29 AM   #13
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Originally Posted by biggles
do you have a return grill on the first floor that rises up into the attic or are the stairs the return
Yes I do have one on the first and the second floor.
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Old 10-23-2011, 09:56 AM   #14
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Upstairs...HOT in summer, cold in winter


You will need a manometer to check the CFMs you should be able to rent one. look on you model # for the size, if you dont know post the number and we will tell you the size.
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Old 10-23-2011, 08:10 PM   #15
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Originally Posted by jkv
You will need a manometer to check the CFMs you should be able to rent one. look on you model # for the size, if you dont know post the number and we will tell you the size.
This is the model number.
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