Page 2 of 2 FirstFirst 12
Results 14 to 19 of 19
  1. #14
    Join Date
    Feb 2005
    Location
    Miami, Fl.
    Posts
    3,559
    Quote Originally Posted by hvaclover View Post
    He must have a Telescoping thumb

    HEY APRA: What were the main architectural dieeferences between the two homes you just mentioned?
    The home in Key Largo was a special built class 5 hurricane house. 2' thick poured concrete with block glass windows, etc.
    The other home, absolutely none what so ever insulation...
    I could not belive the calcs. But , after numerous times running them, I installed the systems and they are cooling....perfectly.

  2. #15
    Join Date
    Jun 2008
    Location
    Phoenix, AZ
    Posts
    70

    Talking

    most new homes have R-30 or R-38 which is slightly more than the older homes, but at 500 sq ft. per ton they keep up just fine... so they're "new" calcs if they are even doing them , are 400 sq. ft. per ton so obviously they are leaving some to spare... unless they are planning on everyone adding on to their house LOL... the solid concrete basement homes I've seen were always 700-1000 sq. ft. per ton...

  3. #16
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    A Man J will tell what is needed.

  4. #17
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,778
    They are not doing them, just guessing.
    Contractor locator map

    How-to-apply-for-Professional

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

  5. #18
    Join Date
    Mar 2008
    Posts
    205

    Amazing

    Quote Originally Posted by arpa View Post
    The home in Key Largo was a special built class 5 hurricane house. 2' thick poured concrete with block glass windows, etc.
    The other home, absolutely none what so ever insulation...
    I could not belive the calcs. But , after numerous times running them, I installed the systems and they are cooling....perfectly.
    Simply amazing.

    Wonder if it'd withstand our annual F-3 tornadoes?

  6. #19
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    Quote Originally Posted by arpa View Post
    The home in Key Largo was a special built class 5 hurricane house. 2' thick poured concrete with block glass windows, etc.
    The other home, absolutely none what so ever insulation...
    I could not belive the calcs. But , after numerous times running them, I installed the systems and they are cooling....perfectly.
    Kinda funny to me because cause in Modern Refrigeration (Class text book)

    they gave an example on doing a cooling calc on a 900 sq ft home with no insulation.

    Can't remember the design temp but it was a hotter part of the use.

    After 6 pages of data the class figured five tons of cooling.

    I always thought there was something wrong with the numbers but the instructor hand book showed five tons too.

    I'm just glad I know my territory and the building practices that are used.

    Makes sizing a lot easier.

Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event