Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Heating & Air Conditioning (https://www.askmehelpdesk.com/forumdisplay.php?f=150)
-   -   R8 ducting comparison over R4 (https://www.askmehelpdesk.com/showthread.php?t=191656)

  • Mar 6, 2008, 06:08 AM
    paleface
    R8 ducting comparison over R4
    Hi:
    I am building a home with a closed attic system and planned R8 ducting it seem the HVAC contractor has installed R4 by mistake. I know that R4 is less expensive. I am trying to figure out how critical this will be to my efficiency. I am planning to have the HVAC contractor change out the ducting but will take a delay. So I guess I am asking whether this change out is necessary or not, since the ducting is in a semi conditioned space anyway.

    Thanks,
  • Mar 6, 2008, 06:37 AM
    coolmen
    I would get by with R6 but R 4 should never have been a thought. R4 was out lawed years ago. Is this a reliable contractor or what. R8 is the law now adays but not all places are pushing it yet by next year all inspevctors should be on board with this.

  • All times are GMT -7. The time now is 03:17 PM.