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  1. OK , So your Load is Dead ON because you ran it 3 times?

    Adam,

    In your calculations,

    What ACH value did you use?
    What % of Duct Loss/gain value did you use?
    What Design Temps?

    Have you run any tests to validate any of these values?
  2. Replies
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    EVERBODY is lying, we are simply talking about shades of grey

    OK,

    SEER tells you how Efficient your system is when it it 82 outside, no RH, and you bring the indoor temp down to 80.

    SEER is a totally bogus rating created to lie to our customers. We are...
  3. Replies
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    5,031

    Hey, Have you looked into a Geothermal System?...

    Hey,

    Have you looked into a Geothermal System?

    Could be just what you are looking for.

    ACBD
  4. Replies
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    2,115

    You are correct

    Yes my Friend,

    A very select few are getting the facts through testing.

    Most are doing loads calcs with out any testing and then trying to claim they are some how legit. Just a SWAG and worse...
  5. Replies
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    2,115

    OK , So what do we know

    Is there anything we do know?

    We don't know ACH, that could be .35 to 1.5 ACH/hr, We don't Know the system losses, those could be 5%-42%, we don't know what out side design we are going to use,...
  6. Replies
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    OK, So you are somewhere between 3 and 5 tons.

    OK,
    This sounds about right for a Load Calc, Somewhere between 3 to 5 tons depending..

    ACBD
  7. Replies
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    2,115

    Hey, Try This

    Hey,

    Of course your problem and your contractors is the same, you are assuming a bunch of values that you really don't have any clue what they are. Your big guesses are the tightness of your house...
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    1,161

    The 2 Stage unit will be much more comfortable

    Hey,

    With the two stage unit you will be much more comfortable.It will run on 1st stage over 80% of the time, moving air,better IAQ, dehumidifying much better, where as the single stage will...
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    SEER is a BIG FAT LIE and HSPF is Worse

    Ok Lynn,

    You are correct:

    These metrics were created because our industry cannot sell anything without lying.

    SEER is telling you how efficient your AC is at 82 outside bringing indoor down...
  10. Replies
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    5,028

    GARBAGE IN GARBAGE OUT

    Hey Dan,

    My point is, the load calcs many posters insist a homeowner require are virtually worthless. They are gamed with numbers(ACH, Duct loss, Duct Leakage) to come out to the answers the user...
  11. SEER and HSPF are lies, We can't help ourselves, we lie about savings

    Hey,

    Be careful with SEER and HSPF, they are terribly unreliable for savings estimates. Both can overstate energy savings considerably,40%. The higher these numbers the bigger the lie. Your new...
  12. Replies
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    LOAD CALC takes 90 Seconds

    OK,

    They are both right.

    Any one of these guys can do a Load Calc in about 90 seconds because they guess at the primary inputs. They guess at Air Changes per Hour, Duct loss, and Duct...
  13. YEA, and Way Oversold on Savings with out any documentation

    These guys were promising the moon in savings. A lot of BS and misrepresentations were made. Close to if not outright Fraud I would say.

    Oh well, they are history now.

    ACBD
  14. Replies
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    1,461

    SO, what is the problem again?

    OK,

    Your is system is "working fine", is keeping your house at temperature and humidity levels you find comfortable in varying conditions, and seems to be "great".

    I think we are done here. ...
  15. I Offer A Slightly Different Perspective

    Mr. Seanhoang,

    You post has elicited a lot of great replies focusing on developing technical capabilities and a learning mindset. I am not allowed to touch the power tools and I come to our...
  16. Replies
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    4,167

    YOU GOTTA BE Clint Eastwood

    So, your load calc works against you.It does the opposite of what you think it does. Especially with High END consumers like those in Bergen NJ. I actually designed the system for EDDIE Murphy's...
  17. Replies
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    4,167

    OK , I will answer you questions

    So, your load calc works against you.It does the opposite of what you think it does. Especially with High END consumers like those in Bergen NJ. I actually designed the system for EDDIE Murphy's...
  18. Replies
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    4,167

    OK, I'LL Bite ( I think )

    Hey, MM#7

    I will answer each question, if you tell me why you ask?

    ACBD
  19. Replies
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    4,167

    Free Beer for Life!

    Hey beshavc.

    I have taught Load calcs to over 7000 guys. I have never ever heard any one ever tell me anything other than "My load calcs are accurate". It was always the other guy's calcs that...
  20. Replies
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    4,167

    I did a Load Calc, Therefore I am Right, and the other Guy is a Moron!

    Hey AMD,

    You Just Told Me,

    "Re: Load calcs, they can be accurate if...

    - A blower door test is done and the cfm value at 50 pascals (I think) is plugged into the software
    - Insulation is...
  21. Replies
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    We Agree, 3% of OLD HOUSE CALCS have some merit.

    Hey AMD,

    We Absolutely Agree.

    I agree a load calc becomes more accurate if you do all the things you state.I would add a duct test to the list as this is an area where you can go from 7% losses...
  22. Replies
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    The man's name is Hank Rutkowski

    I am sure I am butchering his last name, Apologies.

    When I was young, this was the guy credited with writing the original Manual J. As Far as I know that is true.

    He was the guy.

    I went to a...
  23. Replies
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    OK Clocker, Last Time. Find a Pro who will test your House

    You would not be "cheeping out", she will love the comfort, especially if you check out the rest of your house and fix that stuff as well. Buying an 80% oversized furnace because you were "Chaeping...
  24. Thread: COP vs HSPF

    by AC Bad Dog
    Replies
    3
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    1,638

    Hey Norm, Let's draw you a picture. The...

    Hey Norm,

    Let's draw you a picture.

    The HSPF is a bad metric. But we will need another point to draw a line.
    If your contractor can't help you go to AHRI for the second Capacity point.
    Your...
  25. Replies
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    4,167

    All Together Now, "We Suck Less!"

    Hey, I can here the chant gaining strength across the USA of HVAC.

    Three times?

    WE SUCK LESS!, WE SUCK LESS!, WE SUCK LESS!
  26. Replies
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    We Agree

    Yo, MM#7

    We agree. Our job is to just create the choices, look the customer in the eye when we give them straight answers to their questions, No BS, no tricks, then get out of the way. The...
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    So, should the tech make the economic decision for the homeowner?

    OK,

    So, Lets say home owner makes 400k/yr. Lets say HVAC guy makes less.

    When should HVAC guy start making economic and comfort decisions for the homeowner?

    Should he survey homeowner as to...
  28. Replies
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    4,167

    There is no such thing as a "Precise Load Calculation"

    Yo Clocker, Calm down now..

    First,
    No one can do a "Precise Load Calculation", that is impossible on many levels. Even when tests are preformed we simply lower our +- tolerances.

    Second,
    As...
  29. Replies
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    Most Guys Back Into the loads they want, so that's the same thing

    Hey,

    Truth is, on old houses you don't know the key assumptions that drive the loads, it is impossible with out testing. Since we really have no clue with out testing what these values are, we...
  30. Replies
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    OK, OK, OK, But...

    OK, You are correct and your article is also pretty much correct also.

    My point was, even if you do a Manual J. It its just a dog and pony if you don't know the primary assumptions, and you have...
  31. Replies
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    Listen to AMD, he is correct, Get your house tested, then you'll know what to do

    When it comes to load calcs, garbage in = garbage out.

    Window frames can leak more than the windows themselfs; if it's very drafty, caulk around the trim. (removing the trim and spray foaming is...
  32. Thread: dry units

    by AC Bad Dog
    Replies
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    473

    Could be up to 600,000 units this year. Probably...

    Could be up to 600,000 units this year. Probably will continue to increase. Many times our industry becomes a battle of "who sucks the least". We slide down to the lowest possible point'

    Once tax...
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    I would use Lynn's design

    Hey,

    lynn did you a favor, He obviously knows his stuff. Why not use his design?

    Just remember him at Christmas,

    Good luck,

    ACBD
  34. Replies
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    Can I get a 30% Tax credit on this unit?

    This thing is great!

    I did not see the flux capacitor on the diagram.
  35. Replies
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    Confession is good for the soul,

    [QUOTE=duckman06;10992562]Ok guys see you are all starting to bash someone who showed a example of what could be done. No worries here, I am not designing the system just seeing what you guys...
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    What a decent guy

    Lynn,

    What a nice thing for you to do.

    I always find myself a little cynical when the question starts with "my friend has a problem". I will try to be less so.

    I hope they don't use your...
  37. Replies
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    Whoa! Now you're freakin me out PHM. Maybe...

    Whoa!

    Now you're freakin me out PHM.

    Maybe it is for use on different planets
  38. Replies
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    HEY, WE HAVE THE SAME HOUSE

    Hi,

    looks like we have the same house. I even had the York Steller and the Dimond 80.

    1. Reliability- Top contractors can re-design your system and replace your equipment with top quality...
  39. You Got It

    Go with experience. Make sure they are looking at that Ductwork!
  40. You ARE CORRECT, JUST a bunch of guesses

    Yo,

    Software only as good as inputs. But...On old houses You don't know the inputs. You just guess.

    Not just Fireplaces. But As you mention, your Infiltration rate Assumption is a Big Guess....
  41. I am not sure they ever got any real ratings

    Hey Tim,

    When I spoke to their Pres, I remember him telling me their units operated in a way that was inconsistent with them getting "certified ratings",and they were working on that. He was...
  42. If I remember correctly...

    Guys,
    My memory is not that good, But..

    Didn't these guys pitch these systems as the cheaper "alternative to geo".
    Did they not, ever, submit to any form of "certified testing"
    Did they not cut...
  43. Replies
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    No Matter What, the groom still sweats!

    Dude,

    There are companies that specialize in Churches. Call a couple air-conditioned churches for a referral and you'll find some.
    You might also ask if you can move your wedding to their...
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    The Customer wants Hard Nipples.

    Hey Kold,

    If they want to skin deer and hang the meat in their living room, so be it.

    Actually, this is not that unusual for Texans.

    In Fact, York Came out with a condenser that matches the...
  45. Replies
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    I betcha he has Hard Nipples as well.

    Gotta love it,

    You might be able to hang a coat hanger on em.


    ACBD
  46. Replies
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    I like the guys who roll their own J's

    Yes my brother, It is quite amusing. Lots of J guys on the run right now.



    Guys roll their own J's, then they Relax.

    It is hard for some to get used to these facts.
  47. Replies
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    So why hire the Engineer in the first place if don't do what he says?

    Hey, Wait a minute.

    You hire the guy with the degree, then question his answers? Worse, you want him to change his assumptions to get the answer you want?

    Sounds exactly like every one else...
  48. Replies
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    Be Careful with LEED. they are on the ropes for not delivering

    Yo Southern Man,

    Be careful with LEED, lots of push back recently from buildings not delivering.

    Thanks,

    ACBD
  49. Replies
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    Dude, I love it. Guarantee the savings (or pay the difference)

    Dude, you did it.

    How many AC guys would sign up for a program where saving promises were compared to savings delivered? Any ratio close to 1 you get into heaven. Over 1 you sing in the choir ,...
  50. Thread: HSPF

    by AC Bad Dog
    Replies
    10
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    1,609

    AGAIN, THese number are for efficiency not Capacity.

    Please, reread what we told you. The SEER and HSPF have to do with how efficiently your unit uses electricity to move BTUs . They are simply numbers used by AC guys to predict operating costs of...
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