(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 6 of 6

Thread: Crawl Space HVAC

  1. #1

    Default Crawl Space HVAC

    HVAC was located in the crawl space of new construction(see below),but there is concern as to noise potential at night with a bedroom above.Please provide thoughts as to noise as well as possible solutions---there is a mechanical room on floor above,but HVAC person did not want to use it.The crawl space will be sealed (and conditioned) with foam above and other materials on walls and floor.

    Thank you for your help
    Attached Images Attached Images  

  2. #2
    Master Plumber nhmaster's Avatar
    Join Date
    Jul 2008
    Location
    S. Maine
    Posts
    2,039

    Default

    Rule 1 - Never locate mechanical equipment near the master bedroom.

  3. #3
    Master Plumber Redwood's Avatar
    Join Date
    Dec 2007
    Location
    Connecticut
    Posts
    7,463

    Default

    Quote Originally Posted by nhmaster View Post
    Rule 1 - Never locate mechanical equipment near the master bedroom.
    Unless your house is located next to a busy interstate highway or, rail line...
    Then it probably doesn't matter...

  4. #4
    DIY Hillbilly Southern Man's Avatar
    Join Date
    Jun 2008
    Location
    North Carolina
    Posts
    530

    Default

    Quote Originally Posted by weather777 View Post
    HVAC was located in the crawl space of new construction(see below),but there is concern as to noise potential at night with a bedroom above.Please provide thoughts as to noise as well as possible solutions---there is a mechanical room on floor above,but HVAC person did not want to use it.The crawl space will be sealed (and conditioned) with foam above and other materials on walls and floor.

    Thank you for your help
    Imagine that, the HVAC professional took it upon himself to usurp the house designer. Call him back and tell him to do the job right or you'll call your attorney.

  5. #5

    Default

    We agreed to it after hearing it would not work in the mechanical room as thought ---so I blame myself for it.

  6. #6
    DIY Hillbilly Southern Man's Avatar
    Join Date
    Jun 2008
    Location
    North Carolina
    Posts
    530

    Default

    Quote Originally Posted by weather777 View Post
    We agreed to it after hearing it would not work in the mechanical room as thought ---so I blame myself for it.
    Most of the noise will come from the unit being attached to the I-joists. If you support it on the ground that will all go away.

    Get out the install manual for the thing and locate the lower support points. Then get yourself a dozen or so concrete blocks, some pressure treated lumber, a short shovel and your old clothes. Dig a footing under the unit to the frost line and stack up the blocks to a few inches of the unit's support points. Cut plates from the lumber to bridge over the masonry cells and cushion the unit. Then drop the unit down onto the new support, making sure that you've got plenty of slack in the flexible duct connections and the condensate still drains.

    You can also get a roll of unfaced fiberglass insulation and add it to what you already have between the joists above the unit.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •