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  1. Replies
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    I think it has been mentioned in that thread.

    I think it has been mentioned in that thread.
  2. Replies
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    they can 'see' it in the winter when the snow on...

    they can 'see' it in the winter when the snow on his
    roof doesn't melt off to show rafter location on the roof.

    and bragging rights to the lowest utility bill in the hood.
  3. so you have yellow batt insulation in the attic?...

    so you have yellow batt insulation in the attic?

    you could have insulation entering the house via
    oversized cuts in ceiling hidden by supply grills.

    you could have lose insulation that was in...
  4. Replies
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    installing manual dampers at each duct would help...

    installing manual dampers at each duct would help to
    reduce air from some areas & increase air to others.

    ducts would have to be taken off at the supply plenum.
    new start collar with damper...
  5. that is what I was thinking. WOW.

    that is what I was thinking. WOW.
  6. " insulation that have an exterior vapor barrier...

    " insulation that have an exterior vapor barrier and sealing the edges to stop damp air from infiltrating the insulation."

    sealing the edges is always missed.
    it can be as simple as painting...
  7. Replies
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    tri boxes or mixing boxes. can work if done...

    tri boxes or mixing boxes.
    can work if done correctly.

    reusing flex isn't a huge savings.
    the material is cheap, it is the labor you are paying
    for.
    if it is R-6, you should replace with R-8...
  8. Replies
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    420

    the worst case of ducts buried in insulation I...

    the worst case of ducts buried in insulation
    I ever saw ...only once, but
    you could track 70% of the runs of flex due
    to the water stains on the ceilings.
    very extreme case.

    I see it to...
  9. Replies
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    use hvac products on hvac ducts. duct wrap or...

    use hvac products on hvac ducts.
    duct wrap or insulated flex, are the things
    that work.
    reflective bubble wrap, ceramic coatings are
    not approved materials. there are reasons for that.

    best of...
  10. Replies
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    where is the house? in some climates it is ok to...

    where is the house?
    in some climates it is ok to bury the ducts.
    in my hot humid climate, we strap ducts off
    the insulation.
    this is something that changes climate to climate.
  11. Replies
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    I agree. thinking about the people with oversized...

    I agree. thinking about the people with oversized systems
    in existing homes.
    like the dentist who keeps his master suite at 68 in the summer.
    and a 3 ton system on that 900 sq ft area.

    if I...
  12. Would fixing the air leaks likely fix the smell? ...

    Would fixing the air leaks likely fix the smell?
    maybe

    To fix the air leaks, would one seal the cavities or convert the system to a metal duct system?
    ductwork can be mastic sealed if there is...
  13. Replies
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    I have to say, this is one product that I've...

    I have to say, this is one product that I've never seen
    in residential. but to me....it seems like it would work.

    http://www.rawal.com/applications/indoor-comfort

    maybe one day, with the right...
  14. Replies
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    250

    put it in another window?

    put it in another window?
  15. Replies
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    341

    if they set up data loggers they will gather info...

    if they set up data loggers they will gather info for
    set time period. this will allow them to see what is
    happening at night.

    best of luck.
  16. you could always remove what you can inside the...

    you could always remove what you can inside the
    coil & insulate it externally.
  17. Replies
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    it is true. media filters (4" filter) & bag...

    it is true.
    media filters (4" filter) & bag filters are less
    restrictive than the 1" pleated filters.

    the best filter does nothing for a leaky return
    & leaky ducts.
    only after mastic seal of...
  18. Replies
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    2,244

    Alison Bales is a knowledgeable man. I've...

    Alison Bales is a knowledgeable man.
    I've followed his blog for several years now.

    will you be talking to the hvac company this week?
  19. Replies
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    is BRLA Baton Rouge La.? " I've been in MY...

    is BRLA Baton Rouge La.?

    " I've been in MY attic to get the Christmas decorations down in December and it is still very hot up there even in cold temperatures."

    if your attic is hot in December...
  20. Replies
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    not sure how beenthere knows your location...I...

    not sure how beenthere knows your location...I didn't see it in the thread.
    or is this a multi thread poster??

    so emery you are asking after the install of new equipment
    if it is oversized?...
  21. closing the top of the heating closet around the...

    closing the top of the heating closet around the supply plenum...right?

    I use ductboard, installed with foil side facing into the heating closet.
    use caulk or paint on type mastic to air
    seal....
  22. or in the attic. where is the venting for the...

    or in the attic.
    where is the venting for the stove located?
  23. yes you should address the moisture. solve the...

    yes you should address the moisture. solve the problem of the
    moisture & the issue goes away.

    start by testing the ducts for leakage.
    you don't state if it is flex or hard pipe ducting.
    both...
  24. kudos to you polling your friends & fb friends...

    kudos to you polling your friends & fb friends
    for hvac companies!

    best of luck.
  25. not to be obtuse, but what is commissioned? I...

    not to be obtuse, but what is commissioned?
    I can't remember ever hearing that term before.

    tia!
  26. you could do it with 3 tons. the tradeoff for...

    you could do it with 3 tons.
    the tradeoff for the higher cost of foam insulation
    is smaller hvac system.

    if you oversize you'll never get the dehumdification.
    in a tight house, you'll need to...
  27. when I was doing field work for my utility co-op...

    when I was doing field work for my utility co-op it would
    drive the utility guy nuts when I wouldn't put the brand
    of the system.
    instead of just filling in a blank, he had to call the
    builder...
  28. you should be looking at single stage 3.5 ton...

    you should be looking at single stage 3.5 ton heat pumpsystem
    with a variable speed air handler.

    upsizing the unit will result in ductwork issues without
    modifications to the duct system.
    ...
  29. duct leakage & foil bubble foil wrap has little...

    duct leakage & foil bubble foil wrap has little to no R-value
  30. I agree that a heat pump is the right equip to...

    I agree that a heat pump is the right equip to install.

    having been in the house for a short time, you
    & your wife should start writing down the comfort
    issues you have in your home.
    a change...
  31. Replies
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    I'm a big fan of media filters. once duct system...

    I'm a big fan of media filters.
    once duct system is mastic sealed &
    r/a is sealed air tight.

    no sense in putting a good filter on
    a leaky duct system.

    my order of filters:
    cheap rockstopper...
  32. Replies
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    insulation doesn't go bad. post pics.

    insulation doesn't go bad.

    post pics.
  33. thanks for the update. and the link. I read on...

    thanks for the update.
    and the link. I read on this forum often
    about people setting tstat to on rather
    than auto. I thought it was just a hot/humid
    climate thing, so I learned something!

    love...
  34. Replies
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    why isn't insulation talked about more for hotter...

    why isn't insulation talked about more for hotter climates especially in the south where there are no basements and the AC ducts and sometimes the units themselves are located in the attic?

    it is...
  35. Replies
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    $600 to strap ducts...pricy! flex should be...

    $600 to strap ducts...pricy!

    flex should be tight straight runs with no sags
    or restrictions. any curves should be gentle curves
    not 45 degree bends.

    I don't have issue with flex as long as...
  36. just wanted to thank udarrel for his...

    just wanted to thank udarrel for his contributions to
    these threads.
    you the man udarrel!

    good luck with your HW co.OP
    you don't by chance have a pregnant woman in the house?
    (just kidding)
  37. Replies
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    what location? for example hot dry climates can...

    what location?
    for example hot dry climates can bury ducts in insulation.
    here in my hot humid climate ducts condensate where they
    touch the vapor barrier of another duct, or if they touch...
  38. it is worth it. if R-12 was made it would also be...

    it is worth it. if R-12 was made it would also be worth it.

    more insulation around pipes moving hot/cold air is
    a worthwhile investment. same labor...just better
    R-value product.
  39. Replies
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    electric heat isn't energy efficient, so you ...

    electric heat isn't energy efficient, so you
    won't easily find an energy star rated one.

    a few years ago utility companies gave free
    water heaters to homeowners to switch out
    from gas. big...
  40. Replies
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    I would also wonder why it fails. seems to be a...

    I would also wonder why it fails.
    seems to be a symptom of a problem
    undiagnosed so far.

    you need a problem solver,
    not a parts changer.

    best of luck.
  41. duct wrap. R-8 is the highest R-value you can...

    duct wrap. R-8 is the highest R-value you can get.
    you'll need a duct stapler (& staples)
    sharp razor knife
    fsk tape (foil scrim kraft...same stuff as duct wrap)

    I'd unwrap, add screws at...
  42. Replies
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    x2

    x2
  43. Stick with the single stage a/c with a VS blower...

    Stick with the single stage a/c with a VS blower for fine tuning.

    agreed.
    and OP, think about a whole house dehumidifier.
  44. sorry I missed this....I often cut the 3" into 1...

    sorry I missed this....I often cut the 3" into 1 1/2" strips.
    you only need to seal from sheetrock into the metal of the
    the supply box.
    use a razor knife & clean off the metal & the sheetrock....
  45. Replies
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    I'm not a fan of pleated filters unless they are...

    I'm not a fan of pleated filters unless they are 4" media filters.
    the 1" filters are too restrictive.

    take a supply grill off from inside your house.
    you'll see that the supply box is insulated...
  46. Replies
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    all that and back to txv. LOL! keep us...

    all that and back to txv. LOL!



    keep us posted OP!
  47. I think that many people are not aware of this...

    I think that many people are not aware of this Dan.
    IMO, it bears repeating.

    ...warranties are based on # of times the unit
    can start. oversized systems starting numerous times
    per hour, have...
  48. Replies
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    thanks to OP for posting their positive...

    thanks to OP for posting their positive experience.

    and nice job Brent!
  49. ugh! use some of the mastic tape to seal the...

    ugh!
    use some of the mastic tape to seal the boxes to the sheetrock
    ceiling. like this:
    597651
  50. Replies
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    drop me an email. my email address is accessed...

    drop me an email.
    my email address is accessed by clicking on
    user name.
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