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Type: Posts; User: shoot52

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  1. Replies
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    3,580

    ray, I'm a home owner and also live the...

    ray, I'm a home owner and also live the Charlotte area. I would agree that you should get a second opinion. I have a friend in Gastonia who recommends Gastonia Sheet Metal. They have been around...
  2. Replies
    24
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    1,686

    Dash, thanks for the response. Yea, that company...

    Dash, thanks for the response. Yea, that company is Tamarack Technologies, Inc and they call it RAP (Return Air Pathway). Last time I checked their web site seems like they're pricing was based on...
  3. Replies
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    1,686

    dash Dash or other members, I'm a homeowner...

    dash


    Dash or other members, I'm a homeowner and trying to learn too. I need to add a return path also for a bedroom that gets the door closed frequently, and was wondering how is the best...
  4. Replies
    10
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    1,140

    wyounder; I have seen this deration formula...

    wyounder;
    I have seen this deration formula specified in Carrier/Bryant documentation. Does this formula work for other equipment manufacturers?
  5. Replies
    10
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    1,748

    karonski, i'm a homeowner but as a sanity check...

    karonski, i'm a homeowner but as a sanity check to what the contractors are proposing, you can click on the red hvac-calc button above and for about $50 you can run your own load calculation. I wish...
  6. Replies
    43
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    23,277

    Diito wyounger, you explained an oversized...

    Diito wyounger, you explained an oversized furnace exactly.
  7. Replies
    43
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    23,277

    brewyourown, i reponded to your post because it...

    brewyourown, i reponded to your post because it sounded alot like my situation. read the responses to my thread.
    http://www.hvac-talk.com/vbb/showthread.php?threadid=89979
  8. Replies
    43
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    23,277

    brewyourown, I'm a homeowner as well but your...

    brewyourown, I'm a homeowner as well but your description of furnace cycling is very similar to mine. In my home I have 1714sq ft with 87K BTUH output furnace and its way oversized. I'll let the...
  9. Replies
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    2,226

    Ditto to JoeSix, I'm a homeowner too and stuck...

    Ditto to JoeSix, I'm a homeowner too and stuck with an 87K BTUH output furnace that runs for 5-7 minutes. My heat loss calculation were 37K at 22 deg F.
  10. Replies
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    836

    dougjrs, I'm a homeowner and wanted to comment...

    dougjrs, I'm a homeowner and wanted to comment on your statement about the 6" of insulation in the ceiling. I was wondering what R value you used? I believe cellulose insulation is shredded...
  11. Replies
    2
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    686

    midwest, thanks for your response. My...

    midwest, thanks for your response. My temperature rise is around 50 degrees which falls in middle of spec (35-65 deg). One of the reasons I posted the question to you pro's is to ask which supply...
  12. Replies
    2
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    686

    What are the typical output temperatures of...

    What are the typical output temperatures of condensing furnaces? I have an Amana Air Command 90 furnace and I'm getting a discharge temperature of 120 degrees. In Manual J it states to use 100...
  13. Replies
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    839

    dougjrs, I'm a home owner but I do have a copy of...

    dougjrs, I'm a home owner but I do have a copy of the Manual J book and it states the following "Make "best estimate" measurements for the rough opening dimensions of windows and doors (trim may...
  14. Thread: Carrier models

    by shoot52
    Replies
    7
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    1,110

    jeffwired, thanks for the web site. thats the...

    jeffwired, thanks for the web site. thats the kind of information I was looking for.
  15. Thread: Carrier models

    by shoot52
    Replies
    7
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    1,110

    smadave, I am a homeowner also needing a smaller...

    smadave, I am a homeowner also needing a smaller furnace such as the 40K Carrier furnace descibed in this post. Could you point me to a web site that has the specifications on the 40K mxa model?
  16. Thread: Furnace size

    by shoot52
    Replies
    9
    Views
    889

    gtownguy, I'm a homeowner in Charlotte area. ...

    gtownguy,
    I'm a homeowner in Charlotte area. Read my thread "On time for properly sized furnace". Contractor put in an 87K BTIH furnace in my house (approx 1714 sq ft) and its way oversized. Make...
  17. Replies
    33
    Views
    3,724

    dan sw fl, "Heat pump in Charlotte NC is the...

    dan sw fl,
    "Heat pump in Charlotte NC is the most economical heating option."

    Yes, I understand heat pump maybe more economical and I probably will go back to a heat pump when my current AC unit...
  18. Replies
    33
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    3,724

    billva, I just read in my manual that the "manual...

    billva, I just read in my manual that the "manual fan on mode" sets the fan speed to the cool speed setting. Doesn't look like there's any additional jumpering to do. I may give that a try this...
  19. Replies
    33
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    3,724

    greg o, no don't need 5 tons but currently have a...

    greg o, no don't need 5 tons but currently have a 3 Ton system any my load calculation results were:
    23,540 Sensible
    4,895 Latent
    which should be a 2.5 ton. I'll put up with a little oversizing...
  20. Replies
    33
    Views
    3,724

    billva, thanks for your response. I wouldn't...

    billva, thanks for your response. I wouldn't mind running the fan all the time but its too noisy because the ducts aren't sized for the higher CFMs. When running the AC, it is much quieter because...
  21. Replies
    33
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    3,724

    Freezeking2000, yes i see that option "0680" in...

    Freezeking2000, yes i see that option "0680" in the setup menu. Right now its set at the default 2. 1=less agressive temp control or 3=more agreesive temp control. Would you suggest option 1?

    I...
  22. Replies
    33
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    3,724

    These replies are great and I appreciate your...

    These replies are great and I appreciate your input. Anybody got a hugh house that need a good used furnace? LOL...
  23. Replies
    33
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    3,724

    jrbenny, I understand what you are saying and...

    jrbenny, I understand what you are saying and thats why I thought the unit was way oversized. I would prefer the longer on-heat cycles than the quick high burst of heating. Also, if I had a smaller...
  24. Replies
    33
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    3,724

    Dave Davis, thank you for your reply. I believe...

    Dave Davis, thank you for your reply. I believe this is an important topic to understand as a home owner. I've read on this forum that for a properly designed AC system and at the outside design...
  25. Replies
    33
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    3,724

    deejoe; Sorry if I didn't mention whether it was...

    deejoe; Sorry if I didn't mention whether it was too hot or too cold. The problem is that when the heat is on for that short time, I can really tell its Heat time and no wonder it only takes 7-8...
  26. Replies
    33
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    3,724

    Yes, I have to agree with wyonger. This is an...

    Yes, I have to agree with wyonger. This is an 87K BTUH output furnace. One of those 2 stage variable speed 40K furnace's would probably be just right.

    wyonger, yea maybe I'll have to build a dog...
  27. Replies
    33
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    3,724

    Deejoe, Does a 6-8 minute burner time hurt the...

    Deejoe,
    Does a 6-8 minute burner time hurt the heat exchanger or shorten its lifespan? I do have a VisionPro tsat and the cycle time is set to three. Are you saying I could try increasing that...
  28. Replies
    33
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    3,724

    engineerguy, That was my thinking too and I just...

    engineerguy,
    That was my thinking too and I just needed some professional advice. I used the HVAC-Calc program and its coming up with approximately 36K BTUH heat loss which looks like thats...
  29. Replies
    33
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    3,724

    Black Adder, Thanks for responding. My thought...

    Black Adder,
    Thanks for responding. My thought process was that the system was heating up the house too quickly. One starts getting a little too warm during the on time, and then a little cool...
  30. Replies
    33
    Views
    3,724

    How long should a properly sized gas fired...

    How long should a properly sized gas fired furnace run when the outside temperature is close to the design temperature of the system? This morning my system would run for about 7-8 minutes and then...
  31. Replies
    13
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    1,491

    avgeek, I am a homeowner in the Charlotte area,...

    avgeek,
    I am a homeowner in the Charlotte area, and believe me you need to listen to what the pro's are telling you. You need a Manual J load calculation done and also have your duct system looked...
  32. Replies
    2
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    613

    Dash, Thanks for the reply. I understand now. ...

    Dash,
    Thanks for the reply. I understand now. In the Manual S book Section 8 "Limitations of the ARI Certification Data", the author has one table that uses an S/T ratio with reference to the CFM. ...
  33. Replies
    2
    Views
    613

    I have read posts on this site stating that the...

    I have read posts on this site stating that the ARI data listed by the manufacturers need to adjusted to the 75 degree design point that one uses when doing Manual J load calculations. The thread I...
  34. Replies
    7
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    882

    Black Adder >> seems to be moving an awful lot of...

    Black Adder >> seems to be moving an awful lot of air 1657 cfm, for 2.5 ton should be down around 1000cfm. 1657 is enough air for a 4 ton. At that rate of CFM you are definetly going to have cool air...
  35. Replies
    7
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    882

    2hot2coolme I'm pretty sure my load...

    2hot2coolme

    I'm pretty sure my load calculations are right. I live in the Charlotte area, single story brick home, 1714 sq ft, double pane windows, R19 on the floor and about 10" blown insulation...
  36. Replies
    7
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    882

    Freezeking Thanks for reponding. Yes, the AC...

    Freezeking

    Thanks for reponding. Yes, the AC unit does cycle even when we had 95 degree days. Although it was cycling too often when I had that cheap digital round stat from Honeywell. I had a...
  37. Replies
    7
    Views
    882

    I need some guidance on what to do with existing...

    I need some guidance on what to do with existing HVAC. I don't know if I should get the existing duct system sized correctly to support my current system or put in properly sized equipment. Some...
  38. Replies
    7
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    6,833

    I got a copy of the HVAC-Calc program and did a...

    I got a copy of the HVAC-Calc program and did a load calculation and it calls for 2.5T for AC and around 34K BTUH heat loss which seems low to me. I bought a hard copy of Manual J and used the CD...
  39. Replies
    7
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    6,833

    Thanks to all that have responded. I drew up a...

    Thanks to all that have responded. I drew up a layout of my duct work so you all could see a picture of it but I don't know how to attach it. Any help would be great. I have a .jpg or .bmp file. ...
  40. Replies
    7
    Views
    6,833

    Hello all, this is my first posting so be easy on...

    Hello all, this is my first posting so be easy on me. I have approximately 1737 sq ft brick ranch, single story home located in the Charlotte area that was built in 1982. My home originaly had a...
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