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  1. Thread: Conflicting info

    by stvc
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    11
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    444

    How is the system working? You didn't really say...

    How is the system working?
    You didn't really say if there were any comfort or performance issues.
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    421

    Was the system run during construction? That...

    Was the system run during construction?
    That looks like sheetrock dust to me.
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    197

    No. If you have no humidifier it doesn't use any...

    No. If you have no humidifier it doesn't use any water!
    Leaking toilet?
  4. I have installed dozens of them, including at my...

    I have installed dozens of them, including at my own house. Never a complaint. For the most part I would describe the sound moving air with a very slight motor sound. I don't think I have ever seen a...
  5. Like teddy said it is typical. The ground temp....

    Like teddy said it is typical. The ground temp. is around 55f. so with no conditioning that is where you will end up.

    My own home has no AC in the basement and is the coldest area of the house on...
  6. Great data in your graph Mark!

    Great data in your graph Mark!
  7. Replies
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    2,598

    My feelings exactly Erla, I was so speechless...

    My feelings exactly Erla, I was so speechless that they seemed to think 4 ACH was OK I couldn't even type!

    Such a missed opportunity, shameful. Hope there is a chance they will remedy this.
  8. Replies
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    2,598

    4 air changes per hour! And he said nothing...

    4 air changes per hour!

    And he said nothing about this! If this is true it is clearly your problem and seriously question his competence.

    The spray foam could have been done better but but that...
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    3,230

    Is this from a different thread?

    Is this from a different thread?
  10. Replies
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    3,230

    4.73 ACH50 is the blower door leakage rate at...

    4.73 ACH50 is the blower door leakage rate at -50pa depressurization based on their calculated volume of 95100 cubic feet.
    I prefer to calculate to ACHn [natural]. It is not an exact calculation...
  11. Replies
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    I don't have time to go through it all right now...

    I don't have time to go through it all right now but it appears there is quit a bit of duct leakage to the attic. This would contribute to humidity problems. Were you present for the test and did...
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    750

    X2 I know you said you didn't want to hear...

    X2

    I know you said you didn't want to hear this, but you should.
  13. Replies
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    A good place to start if you haven't already...

    A good place to start if you haven't already found it.

    http://www.bpi.org/homeowners_benefits.aspx
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    3,230

    If you have someone RESNET or BPI they should be...

    If you have someone RESNET or BPI they should be qualified. You could ask for references if it makes you feel better. It is a science, but not rocket science when you understand the house as a system...
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    Yes, that is an option and may be a very good...

    Yes, that is an option and may be a very good one. Bringing the ductwork into conditioned space solves a lot of problems at once!

    Without pictures and being there it's tough to make...
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    One more thing I don't think has been mentioned...

    One more thing I don't think has been mentioned is that if the envelope is improved your equipment will be even more oversized. Manual j load calculations should be done after improvements to insure...
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    3,230

    Yes, the energy audit and blower door can be done...

    Yes, the energy audit and blower door can be done in the winter but be prepared for it to get cold in there for a bit. As far as asking for data, Calculated volume, CFM50, ACH and ACHn if they do...
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    I just read the whole thread. I also thought...

    I just read the whole thread. I also thought immediately everything was oversized.

    I also thought blower door and duct blaster testing. I see you did the blower door but the number you posted...
  19. That chimney does not go into the basement, it's...

    That chimney does not go into the basement, it's outside and a fireplace only. It also does not look as though it would be original to the house either.

    I would guess the original was removed,...
  20. If there is no fresh air inlet [it would go from...

    If there is no fresh air inlet [it would go from outside to the return air ductwork] then there is return ductwork leakage. Without seeing it I assume it's in the attic.
    A duct blaster test is what...
  21. Exactly what vstech said. If pressure goes up...

    Exactly what vstech said.

    If pressure goes up when the system is running it is a return leak from the outside or air intake.

    I can understand how that may effect your headache condition but not...
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    Sounds like you would really benefit from an...

    Sounds like you would really benefit from an audit for more than 1 reason.

    You should take mbarson up on his offer. Xcel energy does have a program and he probably can tell you about it as well.
  23. Replies
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    1,201

    It's very unlikely but not impossible that fan...

    It's very unlikely but not impossible that fan could drop the pressure in the house enough to cause anything like that. It does need make up air though and will get it from the easiest place it can....
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    1,201

    If the attic is blown in insulation I would bet...

    If the attic is blown in insulation I would bet money that inaccessible section over that room has no insulation.
    Too bad about the shoddy work, such a shame in a new house and unfortunately not...
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    1,201

    That's good that it blows out, bad it doesn't do...

    That's good that it blows out, bad it doesn't do a good job. That arrangement should work pretty well, maybe a stuck damper or just a bad install.
    Do you have any other sources of humidity such as...
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