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  1. #1
    Join Date
    Nov 2008
    Posts
    7

    Please help re: new construction

    My wife and I are building a house in the Blue Ridge mountains near Asheville, NC at 3200' elevation. Our builder has a proposal from a HVAC contractor who has a good reputation with green builders in the area based on a Manual J prepared by a certified energy rater. I am a total layman on this stuff. I've read many posts here and can't begin to understand all of the nuances and technical details discussed. We are being offered the following:

    EQUIPMENT SPECIFICATIONS

    Make: Trane Model Number(s): 4TWX6036B1000A 4TEE3F40B1000A BATHTR1410000A

    SEER: 17.1 HSPF: 9.1 Btuh Cooling: 36,000 Btuh Heating: 36,000

    I can post the entire proposal if necessary for your input (minus the pricing of course). Please let me know what if any additional information you would need to help me decide if this is a good system.

    To repeat, this guy has excellent rep with many quality builders, but I just have no clue whether there's some other equipment combination that I should consider.

    Additional info I'll post now: Icynene insulation; 2x6 framing; ICF daylight basement walls; southern exposure/passive solar with calculated glazing and overhangs; tight envelope.

    thanks very much

  2. #2
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,586
    All manufacturers, have good combos.
    The question is, what are you looking for in a good combination.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  3. #3
    Join Date
    Nov 2008
    Location
    Bristol Va.
    Posts
    573
    i would also consider a high effeceint air filter to help protect your investment, and help maintain system effeceincy.

  4. #4
    Join Date
    Mar 2006
    Location
    The South
    Posts
    2,213
    mtnlaw

    The "B" series XL16i is being phased out and replaced by the "C" series.

    You might want to ask the Trane experts on this forum to explain the differences.

    1106628 Discontinued Systems XL16I WEATHERTRON TRANE 4TWX6036B1 4TEE3F40B1 36800 12.30 17.00 33200 9.20 22200

    3187915 Active Systems XL16I WEATHERTRON TRANE 4TWX6036C1 4TEE3F40B1 36800 12.30 17.00 33200 9.20 22200

    ref www.ahridirectory.org


  5. #5
    Join Date
    Jun 2003
    Location
    Madison, WI/Cape Coral, FL
    Posts
    6,592
    Any concerns about adequate fresh air and humidity control during wet cool weather? If not, I will not bother you. Regards TB
    Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
    Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
    Use +Merv 10 air filter. -Don't forget the "Golden Rule"

  6. #6
    Join Date
    Nov 2008
    Posts
    7
    Thanks for the responses.

    teddy bear: I forgot to include from the proposal that it includes a Venmar ERV and whole house media filter. The winters here don't tend to be particularly wet. Summers can bring humidity but not extreme.

    been there: I suppose like anyone else what I am looking for is an efficient, reasonably-priced system sufficient to meet our cooling/heating/ventilation needs. Would it help to post excerpts from the Manual J?

    Are there any Trane experts who can comment on the issues regarding the phaseout of the current XL16i per tigerdunes's comment?

    thanks.

  7. #7
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,586
    The load calc, can tell you how well the unit is matched to you and your homes needs
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

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