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  1. Replies
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    In your original design would you need that much...

    In your original design would you need that much HW? Like many here, I have thought about solar but where I live NG is really cheap. People will almost always say they save with a solar system. It's...
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    Where I find C02 controls most useful is in...

    Where I find C02 controls most useful is in multi-use rooms that might be empty at times and full at others.
    The Covid is going to really cost when more ventilation is demanded. Hopefully it won't...
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    I can add that a top tech needs a lot less...

    I can add that a top tech needs a lot less information to make a determination than a lesser tech.
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    I've never been 100% sure of anything.

    I've never been 100% sure of anything.
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    What was the failure mode. Without that it can't...

    What was the failure mode. Without that it can't be fixed.
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    Schools can't teach aptitude. I've used my...

    Schools can't teach aptitude. I've used my example where I could go shoot hoops every day but still never be any good at it. Same waste of time/effort sending someone w/o the ability or aptitude for...
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    When we think of air flows in a duct we think of...

    When we think of air flows in a duct we think of a smooth column of air but that's not the case. Ducts have friction so air in contact with the duct near it's sides tends to tumble. The pitot...
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    Interesting problem. Seems the measurement would...

    Interesting problem. Seems the measurement would depend on the density for the fluid and the pressure. As y'all know, air measurement is affected by altitude (pressure) so I would expect other fluids...
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    It used to be the cheaper, the louder. Today...

    It used to be the cheaper, the louder. Today equipment seems a lot quieter.
    I guess the maintenance guy sees nothing wrong with the unit. The DB rating is published but probably not for mass...
  10. From here it looks like a tri pod and someone...

    From here it looks like a tri pod and someone took the camera with them. Or a lens. I'd follow the wires but I bet you come up MT.
    An interesting thought...How many here ever check for cameras. Like...
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    I can see it from here! Were can I get one?

    I can see it from here! Were can I get one?
  12. Replies
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    1,260

    I know where you live basements are required...

    I know where you live basements are required sometimes even to sell a house. Much of the rest of the country is different. Basements are scarce here. Mostly slabs. Partly because of the soil....
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    Oh no, I don't prefer resi, it's just easier if...

    Oh no, I don't prefer resi, it's just easier if you don't consider the customers. I've never had issues with resi home owners when I did the work. It was a long time ago but I never had the problems...
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    It's fairly normal to out grow a company and move...

    It's fairly normal to out grow a company and move on.
    PM's are on average more profitable so that might be the motivator for your company. As equipment has become much more reliable it's a question...
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    I've referred to the hooker philosophy when asked...

    I've referred to the hooker philosophy when asked about resi vs commercial.
    For the hooker, they can either find one guy with a million dollars (commercial) or find a million guys with one dollar...
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    Oh ya, but a backup computer so when one crashes,...

    Oh ya, but a backup computer so when one crashes, you have real backup. And a 2nd truck so when yours is getting the service you've neglected because your going to be too busy.
    I would in the...
  17. There was a time where earning a patent was a...

    There was a time where earning a patent was a bunch easier. I went to a seminar on patents, copyrights, trademarks. After I was convinced the million dollar idea was a good way to loose a lot of...
  18. Thread: The Ozone Hole

    by hvacker
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    1,817

    Then the question is maybe your truth has holes...

    Then the question is maybe your truth has holes also. And if your looking for "proper credentials" why are you looking here?
    About "how the Coriolis force effects our atmosphere" it's taught in...
  19. Many businesses are publicly owned. They expect...

    Many businesses are publicly owned. They expect an ROI and contribute the problem of investment by corporates. Between the two little would change except for public demand and/or government...
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    Accounting is both a skill and a craft. A company...

    Accounting is both a skill and a craft. A company can loose a lot because much accounting is "Inside information" What you don't know can hurt. Unless your in the minority and understand the ins and...
  21. I understand your point and the savings if...

    I understand your point and the savings if existed wouldn't contribute much probably. In another way supermarkets used to condition the whole space (long ago) but learned they could just condition...
  22. Many roofs here are flat except for more recent....

    Many roofs here are flat except for more recent. I know there is a need to melt snow because of the weight. I have a white rubber roof and I expected some energy savings but didn't see any. It caused...
  23. Thread: The Ozone Hole

    by hvacker
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    1,817

    There is a great NOVA show on PBS. If you have...

    There is a great NOVA show on PBS. If you have the app it maybe could be found. No students but some really good science. They had been watching the ozone for a long time.
  24. Actually I'm not sure white is a best choice...

    Actually I'm not sure white is a best choice everywhere. Just based on load, most heating loads are greater than cooling loads. Cooling will on average lower the indoor temp 20-30 degrees . Heating...
  25. Thread: The Ozone Hole

    by hvacker
    Replies
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    1,817

    No, the opposite. Other gasses mix to their...

    No, the opposite. Other gasses mix to their proportions even though they weigh different. The atmosphere is fairly stable at ground level but the phenomenon called atmospheric turbulence creates...
  26. Were at the place where we have to buy a healthy...

    Were at the place where we have to buy a healthy planet. We have to spend the money to get there.
    Even if those that have been convinced there is no MMGW there is plenty to clean up.
  27. Thread: The Ozone Hole

    by hvacker
    Replies
    51
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    1,817

    All the gasses that make up our atmosphere and...

    All the gasses that make up our atmosphere and some we've added have different weights. I haven't read your article yet but will.
    Gasses occupy a space as if they alone exist (Dalton's Law).
  28. Strange days. Younger people either wanted a VW...

    Strange days. Younger people either wanted a VW or a muscle car. I didn't drive muscle cars. I was a hot rodder. I did price a GTO once. $2900. I remember the AC teemed with Shelby to create the...
  29. Without competition or demand few things change....

    Without competition or demand few things change. The government getting involved comes from the demands of voters. The other demand voters make is cheaper what ever it is. A double bind.
    In some...
  30. The future is an unknown. We could do what we can...

    The future is an unknown. We could do what we can today for now and let technologies develop in their time.
    The obvious is it will take Government intervention. This sticks in many peoples throat...
  31. Exactly PHM. In structures that are small, like...

    Exactly PHM. In structures that are small, like homes, electricity should be produced on site. We know this is not just possible but available. Along with this contractors have to stop building like...
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    How do you intend to use the instrument? Reason...

    How do you intend to use the instrument? Reason being if your going to do test and balance your going to need one with the ability to need certification for accuracy. If you just want to measure...
  33. Thread: txv question

    by hvacker
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    The valve probably has a different spring and the...

    The valve probably has a different spring and the power head will work with either refrigerant. Then they mark out the refer type that doesn't apply. If I was a manufacturer, that's what I'd do. ...
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    About the only way I think a FD could separate is...

    About the only way I think a FD could separate is hydrostatically. Trapped somehow. I've seen this event once on a very large built up heat pump. A couple hundred tons. Refrigerant was trapped...
  35. Thread: Tube delays..

    by hvacker
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    Audiophile's were finding tubes they needed in...

    Audiophile's were finding tubes they needed in Russia. Seems Russians were either slow to adapt or they didn't want to run up their deficit. Might have something to do with what was available.
    There...
  36. I just hook my air/act regulator up to the act...

    I just hook my air/act regulator up to the act tank with an adapter then you have both worlds.
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    Is the pool equipment 100% outside air type or a...

    Is the pool equipment 100% outside air type or a water re-cycle heat pump system?
  38. Thread: The Ozone Hole

    by hvacker
    Replies
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    1,817

    Imagine going into a bar and asking for a double...

    Imagine going into a bar and asking for a double R22 on the rocks.
  39. Thread: The Ozone Hole

    by hvacker
    Replies
    51
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    1,817

    I remember the Coriolis effect from college...

    I remember the Coriolis effect from college studying weather. It's more active toward the poles. The ozone layer starts at something like 9 miles and goes up quite a way. Maybe the difference in...
  40. Thread: The Ozone Hole

    by hvacker
    Replies
    51
    Views
    1,817

    Experts might seem to dazzle because that's how...

    Experts might seem to dazzle because that's how they relate to each other. If you have ever been in the company of people with higher education that's normal conversation. It comes with education. No...
  41. Thread: The Ozone Hole

    by hvacker
    Replies
    51
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    1,817

    And that's the point. Why doesn't the OP ask a...

    And that's the point. Why doesn't the OP ask a scientist.
    Unless the OP wants the dribble down answer...
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    Now y'all know where my head is....

    Now y'all know where my head is....
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    I've never complaints about RSES like I see about...

    I've never complaints about RSES like I see about NATE. RSES has been around a long time. Chapters in many cities.
    Maybe a name change would make RSES seem more about the whole industry. Like...
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    Does RSES still test. I tested for heat pumps...

    Does RSES still test. I tested for heat pumps years ago with them. I got a certification and 2 jacket patches.
    Maybe RSES should have been the organization instead of NATE squeezing in. I had a...
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    I would have to wonder about the new job if I was...

    I would have to wonder about the new job if I was the one required to learn a system for them w/o any obvious way to achieve this.
    I'd have a sit down and convince them that while willing to learn I...
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    Wherever a person can obtain knowledge is...

    Wherever a person can obtain knowledge is worthwhile.
    In a technical area much is special knowledge. It's not obvious. A transistor can't be looked at and understood for example. Special knowledge...
  47. Thread: New Gas

    by hvacker
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    Isn't "partially dyslexic" like partially...

    Isn't "partially dyslexic" like partially pregnant? ( Just jerking around :)
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    Flexible ducts inhibit performance. A better...

    Flexible ducts inhibit performance. A better analysis is needed to determine exactly the problem. Some older equipment has more noise. Like belt drive blowers don't ramp up but come on full tilt....
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    Do you lock your doors at night or when you leave...

    Do you lock your doors at night or when you leave your home even though it's known a thief can defeat most locks in seconds?
    Even though there are dozens of YouTube's showing how to jiggle a lock. ...
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    Interesting thing about putting stuff on bolts...

    Interesting thing about putting stuff on bolts and how it changes the torque value. I bought a little book with info on how to adjust torque values with different lubes like WD-40. No values for...
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