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  1. Thread: Tamarack

    by Xavier
    Replies
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    247

    Return Air

    Thank you for responding to one of my posting, but, I must make two points. At the time I posted the item tree was an ongoing discussion on how to BEST design and install a forced air system. I...
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    833

    Flow vs Velocity

    CVBees

    In addition to your other issues, an “inline fan” REDUCES flow! ;)
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    1,993

    Great Calculations Motoguy AKA "SWAG"

    Yes Mr. Bill that is >1,200 sq ft per ton plus the basement!;)
  4. Replies
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    2,017

    What number do you want?

    HVACRDEDIC

    To be accurate:

    In the case of fossil fuels burnt in air, the combustion temperature depends on all of the following:

    • the heating value;
    • the stoichiometric air to fuel ratio...
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    2,017

    Industrial vs Residential applications

    Hvacrmedic

    I have read a lot about combustion air in the past 35 years, and have read your reference, however it appears that they are addressing “Industrial applications” not residential.

    "...
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    27
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    2,017

    "IAQ" Indoor Air "QUANTITY" (IAQQ)

    Here is the formula I posted on 10/9/11:

    “The chemical equation for burning natural gas is:

    CH4 + 9.52 Air (O2 + N2) = CO2 + H2O + 7.43N2

    (This does not include dilution/secondary air.)
    ...
  7. air volume

    I do not recommend by-pass humidifiers because they reduce air volume to the building by as much as 10%.

    Get a powered one. A little noise but more conditioned air to the living space.:angel:
    ...
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    2,299

    Chemistry Not Opinions

    The chemical equation for burning natural gas is:

    CH4 + 9.52 Air (O2 + N2) = CO2 + H2O + 7.43N2

    (This does not include dilution/secondary air.)

    X
  9. Replies
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    20,591

    How many pounds of potatoes can you put in a 2 pound bag

    Cherokee, when you have a minute could you answer my question if there are recessed lights in the second floor that lead to the attic, or if you have a whole house fan?

    On the same line do you...
  10. Replies
    311
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    20,591

    In and Out

    Shophound:“Which I can't discuss unless I consider the entire dynamic of the envelope and HVAC system. Which is what I'm doing. And which I now see in multiple story structures, return air location...
  11. Replies
    311
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    20,591

    Fact or Fiction

    Lynn I agree with your statements, furthermore not many understand that the dirt gets PUSHED into a “vacuum cleaner!” Until this is understood this discussion will continue for another ten years!
    ...
  12. Replies
    311
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    20,591

    Path of least resistance

    This post is getting way to deep for me and even my nemesis Carnak.

    I think what you are attempting to explain is called the “Neutral Plane” of a building.

    Second; what you are describing is...
  13. Replies
    311
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    20,591

    100 degrees F

    Yesterday ambient temperature was 100 degrees F around 4:00 PM. Attic temperature 132 degrees F and in the Sun 114 F.

    My system came on at 4:10 pm and ran continually until 7:25 PM (Confirming my...
  14. Replies
    311
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    20,591

    Do it Right!

    Skizot, Please reread my statement

    Quote:
    Originally Posted by Xavier
    I have stated for years that my HVAC system for my 3,500 sq. ft. two story home in full sun is 48,000 BTU’s for heating...
  15. Replies
    311
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    20,591

    Air in a Bottle!

    First the great news, the part I designed for my Jag works great.

    I also updated the alternator to a new design that I discussed with someone who builds and repairs them (Expert) and “we” came up...
  16. Replies
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    20,591

    HVAC Return Design

    Hi Brian, how have you been?

    Today I am waiting for some custom parts that I designed for my Jag to be done by a tool and die shop, so I checked in on HVAC.

    Thanks for carrying the “torch”...
  17. Do it "ALL" right!

    Hi Robin. I too miss my “nemesis”!

    Can you please explain how changing CFM (besides running longer) on a system with a "TXV" will affect RH.

    You know my position: 2 tons @ >500 CFM's for my...
  18. Replies
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    30,492

    Stay Cool

    This year’s post is dedicated to my friend and adversary.

    Time to open the upper returns and close the bottom ones.

    I am sure he does not have to switch his returns because I know he has great...
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    Hot/Cold or NONE!

    I use hot water and a clear drain line in my “powered” flow through humidifier with a ball valve to control water flow through.

    Because I have reduced/eliminated uncontrolled air exchanges in my...
  20. Merry Christmas to all.

    Merry Christmas

    I posted this explanation as my early Charismas present hoping this one would be understood and reduce everyone’s energy costs (my Christmas present to all).

    Since no one has...
  21. How airplanes fly

    Xman, you apparently do not understand the effect of wind on Delta P. I guess by now you have heard of a blower door test? Look it up and report back here what the effect of wind against a house is...
  22. Quality not QUANTITY

    Let me address these last two posts.

    First Bob 100% of what I posted was intended to explain how a home works and help the poster. The reference to my site was because I have received several...
  23. Houses DO NOT make air--OPEN A WINDOW

    The correct and only practical answer to your question is “OPEN A WINDOW!”

    For over 30 years I have been explaining how a home works (PHYSICS) including 10 years on this site and it is still not...
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    30,492

    Down for Winter, Up for Summer

    naiga snruter wol dna hgih ruo hctiws ot emiT.


    Note: It is encouraging to continue to see each year more and more posters understanding how a home works.

    P.S. However, it would be nice...
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    New Technology

    [QUOTE=energy_rater_La;7889511]TB
    the program I work with was until recently administered by state goverment
    I guess it still is, although in part federal goverment has come in also.
    the .35 ach...
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