Page 1 of 2 12 LastLast
Results 1 to 13 of 16

Hybrid View

  1. #1

    Angry

    Having problem with air flow & humidity. I live in a split level rancher. Heater is in the attic .there is a 10 degree difference from lower floor to upper floor .starting at the lower floor 65/70/75. Humidifier can not keep up. There is a noticeable difference in air flow, upper floor to lower with the lower floor having the least.

  2. #2
    Join Date
    Dec 2004
    Posts
    201
    sounds like a poor setup,,are you new to the house

  3. #3
    not new to the house. We just had a contractor install it.

  4. #4
    Join Date
    Dec 2004
    Posts
    201
    are you saying there is one airhandler in the attic supplying 3 floors

  5. #5
    How long of a cycle does the furnace run ?

  6. #6
    its a single unit 3.5 ton. It comes out of the unit to 2 10inch ducts one 10inch duct supplies middle floor which supplies 6 vents and 1 return. Second 10inch duct feeds the upper floor which supplies 6 vents 3 returns and has another 10inch duct that extends from this one that feeds the bottom floor which supplies 4 vents and 1 return that is shared with the middle floor return.

  7. #7

    to fat eddie

    it runs for about 10-15mins at a time. the thermostat and humidity control is on middle floor.

  8. #8
    Join Date
    May 2001
    Location
    Kansas City
    Posts
    2,729
    Are you saying 2 10" flex supply runs? If so you have real ductwork problems, need more like 2 10 x 12 metal trunklines. Tri-level's are hard to keep uniform temps, about all you can do is run the fan all the time. Did the old system work better?

  9. #9
    there was no old system. My house was electric heat before. the 10inch duct work only runs for about 3 feet then its the hard square duct work and branches to the registers are 6 inch flex duct. Do you think that the fans that you can put in the 6inch flex duct really work to provide more airflow to the lower floor? Do you think the manual air control duct would work if it was put somewhere in the 6inch duct to the registers? I am not sure what this is called but it has a lever on the side that can block the air flow to the upstairs floor would it devert more air to the first floor. closing the regesters did not work.

  10. #10
    Join Date
    Jan 2005
    Location
    daytona florida
    Posts
    76
    NO YOU HAVE DUCT PROBLEMS AIR FLOW AIR FLOW AIR FLOW

  11. #11
    Join Date
    Feb 2003
    Location
    Huntsville,AL
    Posts
    4,125
    did you or contractor run load calc?
    read lots here --

    again, were you warm enuf with old system? is new furn same size as all baseboard addded together?

    did someone say: "air flow"

    how about assume 600sfpt?

    [Edited by cem-bsee on 02-19-2005 at 06:30 AM]

  12. #12
    Join Date
    Dec 2002
    Location
    Rochester, MN
    Posts
    5,305
    I agree with the guys. You have wrong sized duct(10") to feed the main trunk.

  13. #13
    Join Date
    Dec 2004
    Posts
    201
    if you want it to work properly, i think you might have to start over

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event