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  1. Replies
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    937

    it looks like some #'s from 7th edition MJ. Big...

    it looks like some #'s from 7th edition MJ. Big problem I see is with IECC i need to be able to apply the U-values and SHGC and this form has default for double pane. Not all windows are the same...
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    If you are not going to use the right draw from...

    If you are not going to use the right draw from Wrightsoft then an alternate would be elite and is simple to use. Not sure about johnwrite software, but I would use the ACCA approved software. Both...
  3. Thread: New hvac system

    by mogy
    Replies
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    905

    do not install anything without a manual J first....

    do not install anything without a manual J first. Your window upgrade will more than likely change the required Btuhs to keep your home heated and cooled.
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    1,259

    Honeywell Thermostats with Redlink are...

    Honeywell Thermostats with Redlink are Honeywell's wireless line and there are a few programmable thermostats to choose from.
  5. Thread: Lennox PureAir

    by mogy
    Replies
    2
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    1,134

    I have installed a few of those and they are nice...

    I have installed a few of those and they are nice units. If I remember correctly the MERV filter is closest to the furnace and the doors have changed in the last 2-3 years, but I could swear there...
  6. all contractors should run a Manual J to properly...

    all contractors should run a Manual J to properly to identify what system size you should start with. From there I would decide two systems vs. one with zoning. Something else to think about when...
  7. May need more information to better understand...

    May need more information to better understand the problem. You said it is a remodel and I see stairs going down, maybe it is a chase required for something that is existing. My thoughts are either...
  8. :) nicely said, George

    :) nicely said, George
  9. HC16 is somewhat less than the Pureaire. The HC...

    HC16 is somewhat less than the Pureaire. The HC is a MERV 16 media filter which is one of the better media filters on the market. Most of the Honeywell filters you may see at home depot are MERV...
  10. Replies
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    2,675

    You can install an exhaust vent on a wall in lieu...

    You can install an exhaust vent on a wall in lieu of the ceiling, but look at the manufacturers specs. Some require the fan to be so many feet above the ground. Also keep in mind the depth of the...
  11. Replies
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    26,828

    Sticky: Poll: Energy Rater & HVAC Consultant

    Energy Rater & HVAC Consultant
  12. Replies
    12
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    2,461

    Great questions. 1) Should I get an load...

    Great questions.

    1) Should I get an load calculation for each quote? I am a bit concerned about going with a 110K when the existing 100K 90% unit has worked well and I have made some...
  13. Replies
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    1,033

    you will need to verify with residential & energy...

    you will need to verify with residential & energy codes for your climate region. Most are minimum of R6 within the building envelope. I am in the southern region, R4 maybe suitable for up north
    ...
  14. the 4" media filter at the air handler is the way...

    the 4" media filter at the air handler is the way to go. What size is your unit? Sizing is important to determine which filter to use. Common sizes are the 16x25 and 20x25. On the 4 and 5-tons...
  15. Replies
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    745

    This is the Ask Our Pro's forum. In order to post...

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread....
  16. Replies
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    2,704

    there may be different warranties. The comfort...

    there may be different warranties. The comfort series may also be slightly quieter and the cabinet is slightly different.

    No difference between Carrier and Payne they are the same company.
  17. That's a Carrier heat pump... if you install it I...

    That's a Carrier heat pump... if you install it I would make sure to replace the evaporator coil as well so that you have a matched system that can deliever the capacity and SEER expected from that...
  18. Replies
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    6,182

    Not a fan of UV lights either, they actually...

    Not a fan of UV lights either, they actually cause me more headaches than they are worth.

    I highly recommend 4" media filters. My choice is the Honeywell F100. I would use a MERV10 filter for...
  19. Replies
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    2,479

    Pics are helpful. The work looks clean and from...

    Pics are helpful. The work looks clean and from your pic I see the moisture around all the connections and not the actualy unit itself. This tells me and is visible on your pics that your system is...
  20. Replies
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    2,479

    In my neck of the wood lot of contractors use...

    In my neck of the wood lot of contractors use duct board triangles in lieu of sheetmetal wyes.
  21. Replies
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    2,479

    Manual J is a must, but a three ton two-speed w/...

    Manual J is a must, but a three ton two-speed w/ variable speed AHU may be fine. We do not know enough about your house construction to base tonnage on square footage. I do know that your two speed...
  22. Replies
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    & minimum duct on each should not be less than 16"

    & minimum duct on each should not be less than 16"
  23. Replies
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    1,115

    the new honeywell redlink system is awsome and is...

    the new honeywell redlink system is awsome and is affordable. You dont have to run the wires and if go with the optional portable controller you can enhance your temperature control and comfort. ...
  24. Replies
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    2,689

    the outer liner is like a vapor barrier, but also...

    the outer liner is like a vapor barrier, but also holds the duct together when you make your cuts to fold duct. If you flip it over you will cut the foil causing the duct to fall apart.

    Are you...
  25. Thread: Coil matching

    by mogy
    Replies
    4
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    1,326

    If I'm not mistaken that is an older unit. I...

    If I'm not mistaken that is an older unit. I believe that the old horizontal coil would have been a CK3BXA030 or CK5 for an upflow. The new coils are CNRHP3017 or CNRVP3017. The "R" is for R22 if...
  26. Replies
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    1,819

    I like it & it's similiar to what we would have...

    I like it & it's similiar to what we would have used, but no fan on/auto :(
  27. Replies
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    it's definetly typical new construction or at...

    it's definetly typical new construction or at least in these parts.

    The only thing I could see wrong is there's no secondary from coil, no P-trap, flex not strapped, r/a plenums not strapped, gas...
  28. Replies
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    1,819

    Is there a 24v tstat for hot yoga?

    I've taken a Hot yoga studio on and I need a thermostat with high heat settings and fan on/auto. Long story short I need the fan settings so I can turn fan on to allow fresh air to purge the room...
  29. Replies
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    21,594

    can't add much more than what has already been...

    can't add much more than what has already been said, but I would like to add this. As a contractor I am told by customers I can get this online cheaper use this. My reply is I don't buy anything...
  30. Replies
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    2,579

    against code? yes, but years ago that was...

    against code? yes, but years ago that was acceptable - at least where I live.

    should you repair? How old is the house? many older homes were installed this way.

    Repair requires sheetrock to...
  31. Replies
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    1,840

    Heat load is not as important on a replacement...

    Heat load is not as important on a replacement unless your old system never met it's temperature set point.
  32. Thread: Schematics

    by mogy
    Replies
    1
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    671

    you need to contact lennox or your local lennox...

    you need to contact lennox or your local lennox dealer. They can get that info for you
  33. Replies
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    your new trane system, you didnt increase the...

    your new trane system, you didnt increase the size of it from your old system did you?

    Variable speed airhandlers - have it checked to make sure the fan was set for your application. Variable...
  34. Thread: load calc

    by mogy
    Replies
    12
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    1,049

    good for ya, return air in the room is a great...

    good for ya, return air in the room is a great idea.
  35. Replies
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    1,840

    Is this a replacement of an existing system? or...

    Is this a replacement of an existing system? or adding a/c to an existing home or a new home?
  36. Replies
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    1,840

    I'm concerned you havent found a contractor that...

    I'm concerned you havent found a contractor that runs heat loads.

    All manufacturers are having to change their products to meet the new 2006 Department of Energy requirements. As for Amana their...
  37. Thread: load calc

    by mogy
    Replies
    12
    Views
    1,049

    2.0 ton sound good to me!!! Computer room?? ...

    2.0 ton sound good to me!!!

    Computer room?? In a residential application, are you referring to a study with a home computer or is this person working from their home with fax, printer, copiers,...
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