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  1. Replies
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    Yep, foam the roof deck and attic becomes sealed,...

    Yep, foam the roof deck and attic becomes sealed, conditioned space.
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    Bill, I was living in Allen in 82 or 83 (or was...

    Bill, I was living in Allen in 82 or 83 (or was it 81) when we had that 8 day deep freeze. Had a heat pump in the cheap all electric F&J home and froze my a$$ off. Cold can happen here.

    My HVAC...
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    Pstu, TXU wants to build 6 more coal fired plants...

    Pstu, TXU wants to build 6 more coal fired plants to keep up with the demand. Strong opposition from Dallas area politics. But maybe you heard that D/FW airport is sitting on a huge natural gas dome...
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    BaldLoonie, could you explain what trouble you...

    BaldLoonie, could you explain what trouble you have seen with zoned or 2 systems in a 2 story? I am having a custom home built and am curious as to what you meant.

    Thanks!
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    Bill, I don't know a lot more than what I posted....

    Bill, I don't know a lot more than what I posted. These are K Hovnanian (Goodman) homes. All the homes I saw built by them are Energy Star rated. Can't swear that the cellulose home is, but there are...
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    slice, so is your garage attic in the sealed...

    slice, so is your garage attic in the sealed envelope? I was debating whether to just use batts for garage walls (icynene for common garage/living area wall) and batts above garage ceiling; do soffit...
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    Being in Denver helps indeed. 2,700 cooling days...

    Being in Denver helps indeed. 2,700 cooling days in Dallas makes for a different scenerio. But with the foam I am going to use the "rule of thumb" ;) is 750 - 1,000 sq ft assuming minimal west window...
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    Sounds like a tight house! Using foam insulation?

    Sounds like a tight house! Using foam insulation?
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    [/B] IN DFW why not a heat pump vs an 80%...

    [/B][/QUOTE]IN DFW why not a heat pump vs an 80% furnace, (read your other posts). Natural gas that low there? [/B][/QUOTE]

    I'm in DFW area too. Gas is dirt cheap here compared to TXU electric....
  10. Didn't want to stray too OT on the too tight...

    Didn't want to stray too OT on the too tight house thread so new post here. Have about decided on using the UA-90H with a Trane HVAC on the new foamed/unvented attic home.

    Been researching ERV's...
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    Watercop, these are model/show homes. Running...

    Watercop, these are model/show homes. Running lights, 72 - 74 degrees, pool equipment 24/7. Only occupied during business hours. No cooking but fridge is on. Been around 102 - 106 here for a couple...
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    First off, my sympathies go out to you as well on...

    First off, my sympathies go out to you as well on the loss of your friend.

    No debate here; foam is like anything else in the construction business. Has to be done right by someone who grasps the...
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    Select inside walls insulated. Bathrooms, kid's...

    Select inside walls insulated. Bathrooms, kid's walls facing the family room, master bedroom/family room wall downstairs. Will have returns in bedrooms.
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    ddog1, not sure about that. Good question though....

    ddog1, not sure about that. Good question though. My walls will be packed with Icynene foam so I wouldn't even consider them to be an issue in the calcs. The drywall should be the same temp as the...
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    Thanks for the replies. Boy, taxes are based on...

    Thanks for the replies. Boy, taxes are based on total square feet even if you can't live in the wall spaces :)

    It's just a model! So a 3,250 sq ft house is really a 2,800 ft house. Go figure.
    ...
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    I was going over the final construction...

    I was going over the final construction blueprints on my new house and realized that doing a room by room measurement of living space including closets, the square foot figure is less than what is on...
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    EQUALIZ-AIR was invented in 1978. Hello, this...

    EQUALIZ-AIR was invented in 1978.

    Hello, this is 2006. There has been a lot of changes since then. Northern climates are different than southern climates. My biggest frustration in studying the...
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    acman, just one y terminal. Found the original...

    acman, just one y terminal. Found the original paperwork. SEER 12.5 Five ton. Didn't say anything about 2 stage compressor.

    Got the humidity gauge today and it has read 44 - 46% inside all day....
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    jquest, it is difficult to find something...

    jquest, it is difficult to find something definitive. The Icynene foam dealer recommends that all systems be sized and engineered to all current ASHRAE specifications
    including Manual J and Manual...
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    paul42, in the course of all the research I have...

    paul42, in the course of all the research I have been doing, with a properly designed dehumidification system, the above statement can be valid. But I have been in contact with some people in the...
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    Very informative thread, especially since I am in...

    Very informative thread, especially since I am in the process of building a tight home in the Dallas area (icynene with sealed attic)and am trying to get all the information I can.

    Seems like...
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    betternotcheaper, you have an attitude tonight?...

    betternotcheaper, you have an attitude tonight? There are rules against bashing people here. 4 posts? What a professional on this forum you are. Where are you from? This is a southern issue and...
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    acman, I don't think I have the thermostst you...

    acman, I don't think I have the thermostst you speak of. 2 up/down buttons with a square button either side of that. Says trane and has the digital window read out to the left of the buttons. TAYSTAT...
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    27% outside, not in. Probably in the 40 - 45%...

    27% outside, not in. Probably in the 40 - 45% range in. I'll find out tomorrow when I get the gauge.

    psychometric, I was concerned that it uses more electricity to cycle like that and may be...
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    I have a 3 year old Trane XL1400 5 ton with a...

    I have a 3 year old Trane XL1400 5 ton with a matching evaporator and VS fan in the attic (dealer matched it to the outside unit). Dallas metroplex. I have been reading here about the problems...
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