Results 1 to 17 of 17
  1. #1
    Join Date
    Apr 2007
    Location
    WESTMINSTER CO
    Posts
    1,088

    Default OUTSIDE FORCED AIR FURNACE

    hey all

    has anyone come across one of these units??? i'm in colorado and it's the first outside residential furnace i've come across. house was built in 1968.

    it is a CANADIAN GAS ASSOCIATION FURNACE.--MODEL# bwhd20l12006a--ser # wdgb083849

    it is only for heating because house had a evaporative cooler on roof.

    all you hvac specialist---HELP

    CHARLIE

    Similar Threads:
    ***IMPORTANT*** You Need To Register To View Images ***IMPORTANT*** You Need To Register To View Images
    NHIE Practice Exam

  2. #2
    Join Date
    Mar 2007
    Location
    Atlanta, Georgia
    Posts
    1,078

    Default Re: OUTSIDE FORCED AIR FURNACE

    Can you be more specific? Why kind of help do you want?

    It makes fire, the fire heats the air, the fan blows the hot air into the house, the fire goes out, the fan stops blowing. The ducts look to be uninsulated which would seem to be a very silly to have uninsulated ducts exposed to the exterior.

    If the unit was manufactured in 1968, then the heat exchanger needs a complete invasive inspection by a licensed HVAC contractor. If it was manufactured in 1968, then it is past its statistical life expectancy. If it was manufactured in 1968, then it is less than 80% efficient and costs significantly more to operate than a newer model. The payback in energy savings would probably justify the expense of a new system.

    I would probably flag this as a Repair/Replace Item.

    "The Code is not a peak to reach but a foundation to build from."

  3. #3
    Join Date
    Apr 2007
    Location
    WESTMINSTER CO
    Posts
    1,088

    Default Re: OUTSIDE FORCED AIR FURNACE

    HEY BRUCE
    thanks -yes i know it needs to be replaced--but what i wanted to know is,has anyone encountered this type of unit outside in a windy -snowy-cold climate. and being manufactored in the upper northern part of our hemisphere, does canada know something we don't about furnaces ---my buying agent said there was a strange heating unit at this yet to be inspected house and instead of evaluating at inspection,i decided to drive by in front of inspection to check it out,and see what she meant--glad i did. so that was my question-what the hell is it.buy the way i live five minutes from this house
    thanks
    charlie


  4. #4
    Join Date
    Mar 2007
    Location
    Philadelphia PA
    Posts
    3,177

    Default Re: OUTSIDE FORCED AIR FURNACE

    Why does it need to be replaced? It isn't 1968, that's for sure.


  5. #5
    Join Date
    Mar 2007
    Location
    Spring Hill (Nashville), TN
    Posts
    5,847

    Default Re: OUTSIDE FORCED AIR FURNACE

    I have never seen a unit exactly like that one. I have seen many external package gas units, but not what you have.

    As for it being made by the CANADIAN GAS ASSOCIATION FURNACE, I don't think that this is the manufacturer. CGA designs and certifies systems, but I do not belive they make them.

    Scott Patterson, ACI
    Spring Hill, TN
    www.traceinspections.com

  6. #6
    Join Date
    Apr 2007
    Location
    WESTMINSTER CO
    Posts
    1,088

    Default Re: OUTSIDE FORCED AIR FURNACE

    thanks scott

    as i said i haven't inspected yet--but all i could do was get a zoomed in look at the label,because the biggest hornets nest in the world wasinside panel and they were not happy to see me {BEWARE OF BEES ALL}--what did WE DO before digital cameras- I will get a better look at inspection,that is if listing agent gets someone out there to get rid of the bees,so what do you think? manufactored in the land of good beer,canada or what
    charlie


  7. #7
    Join Date
    Feb 2008
    Location
    Chicago IL
    Posts
    1,984

    Default Re: OUTSIDE FORCED AIR FURNACE

    I haven't seen that particular unit around here. Rooftop units are very common around here. I used to have a service contract for 2 malls with endless RTU's. The unit doesn't look that bad. One the things I check for on older units like that is if the insulation is still properly attached in the exterior ductwork.

    www.aic-chicago.com
    773/844-4AIC
    "The Code is not a ceiling to reach but a floor to work up from"

  8. #8
    Join Date
    Mar 2007
    Location
    Montreal, Quebec
    Posts
    40

    Question Re: OUTSIDE FORCED AIR FURNACE

    I am in Canada and I have never seen anything like it before?


  9. #9
    David Banks's Avatar
    David Banks Guest

    Default Re: OUTSIDE FORCED AIR FURNACE

    Charlie. Check the data plate and make sure it is meant to be used on exterior then go find the install manual on the Internet. Call the manufacturer for the age and your on your way.


  10. #10
    Join Date
    Dec 2007
    Location
    Osceola, AR
    Posts
    310

    Default Re: OUTSIDE FORCED AIR FURNACE

    I printed the pics off & took them to my HVAC guy. I knew that something was kind of odd on these, but I couldn't get a handle on it. The HVAC guy looked at the pics for about 2 seconds and said "it's mounted backwards". He went on to say that this appears to be a standard gas pack that could have been made by any one of at least a dozen manufacturers, but that the units are typically mounted on a pad or stand and the duct work enters from the rear of the unit. He went on to say that he has mounted units in this manner before and that at one time there were brackets that allowed for this mounting configuration. He also mentioned that the vibration, weight of the units, and improper anchoring would sometimes allow the unit to pull out a chunk of the wall that it was mounted to.
    Might want to take a close look at the mounting just to be on the safe side. Oh, and he also said that by the look of the unit it probably isn't the original unit from '68.
    Alton Darty
    ATN Services
    ATN Services : Home


  11. #11
    Join Date
    Apr 2007
    Location
    WESTMINSTER CO
    Posts
    1,088

    Default Re: OUTSIDE FORCED AIR FURNACE

    thanks alton

    i plan on being there when the hvac guy gets there, always interested in learning from the experts. will report back to all with his findings
    charlie


  12. #12
    Join Date
    Mar 2007
    Location
    Knoxville, TN
    Posts
    2,445

    Default Re: OUTSIDE FORCED AIR FURNACE

    Looks like a gas package unit, but not installed like anything I have ever see.

    What made you think it was made in 1968? It just doesn't look like it's 40 years old.


  13. #13
    Join Date
    Dec 2007
    Location
    Osceola, AR
    Posts
    310

    Default Re: OUTSIDE FORCED AIR FURNACE

    Quote Originally Posted by Jack Feldmann View Post
    Looks like a gas package unit, but not installed like anything I have ever see.

    What made you think it was made in 1968? It just doesn't look like it's 40 years old.
    Charlies original post said house was built in '68, consensus seems to be that the gas pack aint from '68 though.
    Alton Darty
    ATN SERVICES
    ATN Services : Home


  14. #14
    Join Date
    Apr 2007
    Location
    WESTMINSTER CO
    Posts
    1,088

    Default Re: OUTSIDE FORCED AIR FURNACE

    alton
    mls and listing sheet says built 1968,{house that is}----initial walk around looks that way,because there is also a federal pacific electrical panel,known for that time frame
    charlie


  15. #15
    Join Date
    Apr 2007
    Location
    WESTMINSTER CO
    Posts
    1,088

    Default Re: OUTSIDE FORCED AIR FURNACE

    alton
    i have not been inside house yet,to see if there was an earlier heat creature
    charlie


  16. #16
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,245

    Default Re: OUTSIDE FORCED AIR FURNACE

    Charlie,

    That unit is 1995 or newer.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  17. #17
    Join Date
    Mar 2007
    Location
    Washington State
    Posts
    579

    Default Re: OUTSIDE FORCED AIR FURNACE

    Charlie,

    I believe the unit has been installed backwords. Usually these types of units are installed on a concrete pad and the ducts come directly off of the unit and go straight under the home. The ducts at the exterior are usually insulated with a metal shroud covering them.


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
  •