Search:

Type: Posts; User: Wild

Page 1 of 5 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    42
    Views
    1,705

    Does anybody really need scientific proof that...

    Does anybody really need scientific proof that when you turn your thermostat down you save money? Is there really any question as to what would cost more, heating your home to 65 degrees or heating...
  2. Replies
    42
    Views
    1,705

    I believe the OP has a propane furnace, not a...

    I believe the OP has a propane furnace, not a heat pump.
  3. Replies
    42
    Views
    1,705

    The lower you set the thermostat the more money...

    The lower you set the thermostat the more money you will save. There are limits to how low you should go but this is for condensation and comfort issues.

    Your house loses btu’s and your furnace...
  4. Replies
    33
    Views
    4,843

    $140 dollars for a furnace circuit board...

    $140 dollars for a furnace circuit board installed is a very low price. $800 dollars is high. For most full service HVAC companies $140 dollars hardly covers the travel and diagnostic time. There’s a...
  5. Replies
    33
    Views
    4,843

    I get it that many people want their ducts to be...

    I get it that many people want their ducts to be cleaned simply because the return ductwork has some dust accumulation. Even if they know there’s no IAQ benefit.

    If I lived inside my return air...
  6. Replies
    33
    Views
    4,843

    $1,000 dollars a day is nothing, I’ve seen a...

    $1,000 dollars a day is nothing, I’ve seen a company that made more than that per job. This duct cleaning company would advertise $99 dollar whole house duct cleaning. They would then do the work and...
  7. Thread: On Call Delima

    by Wild
    Replies
    14
    Views
    1,414

    What is your employee compensation for being on...

    What is your employee compensation for being on call?

    It seems like it would be tough to be profitable fielding technicians to the new location. If it’s not profitable and going to cause poor...
  8. Replies
    193
    Views
    11,178

    I think the higher cost of living these days has...

    I think the higher cost of living these days has a lot to do with it. The national median income for an HVAC technician is $41,000. That isn’t an income that’s going to give you very much financial...
  9. Replies
    33
    Views
    4,843

    He should've told his mama he’d clean his room...

    He should've told his mama he’d clean his room for $99 dollars. Then went out to the garage and grabbed his dad’s leaf blower and cleaned his room with it.

    Once the cleaning was done he’d go back...
  10. Replies
    33
    Views
    4,843

    Nice before and after pictures, it looks like...

    Nice before and after pictures, it looks like your company is part of that very small minority that does a great job cleaning air ducts.

    But I'd also like to see a picture taken of those return...
  11. Replies
    50
    Views
    4,293

    The IFC board places an AC potential from about...

    The IFC board places an AC potential from about 60 to 100 volts onto the wire connected to the flame sensing rod. When air and fuel are burned flame ionization occurs. These ions have the ability to...
  12. Replies
    177
    Views
    76,118

    Just my opinion

    If you do decide to enter this trade I would recommend getting the degree, there will likely be some point down the road where you need it to obtain a certification or license. But like any education...
  13. Replies
    6
    Views
    673

    What causes a mist out of supply registers?

    Anybody ever have a mist come out of all the supply registers? It's a white vapor that continuously blows out of the supply registers about a foot or so. This is a 5 ton split system with the furnace...
  14. Thread: Training

    by Wild
    Replies
    9
    Views
    939

    What was the rating printed on the pressure...

    What was the rating printed on the pressure switch? Sounds to me the pressure switch was bad.

    The rating on the pressure switch is the pressure at which the switch makes. It should break .15...
  15. Replies
    36
    Views
    3,683

    I was wearing gloves that had a flap on them that...

    I was wearing gloves that had a flap on them that covered your fingers to keep them warm or you can fold it back and use your fingers to work. Well I took the blower panel off a RTU and that flap got...
  16. Replies
    48
    Views
    18,379

    When ducts get really bad (Like in post #6 by SO)...

    When ducts get really bad (Like in post #6 by SO) I recommend cleaning them, but in most cases the money is better spent on other IAQ accessories that will actually make an improvement.

    For...
  17. Thread: 90% furnace fire

    by Wild
    Replies
    32
    Views
    5,637

    Sounds like one of the orfices didn't get put in.

    Sounds like one of the orfices didn't get put in.
  18. Thread: HVAC Super Pro ?

    by Wild
    Replies
    34
    Views
    6,556

    I tried some of this stuff out today and wasn’t...

    I tried some of this stuff out today and wasn’t impressed. You can’t pull it apart but with smaller 3/8 tubing you can break it apart with your hands. I definitely wouldn’t trust it around the...
  19. Thread: HVAC Super Pro ?

    by Wild
    Replies
    34
    Views
    6,556

    Seems like this is a better technique if you...

    Seems like this is a better technique if you think about it.

    You eliminate any possibility of oxidation on the inside of the copper. You eliminate the possibility of damaging a service valve, txv...
  20. Replies
    128
    Views
    17,845

    What are you selling as a service tech; system...

    What are you selling as a service tech; system enhancements, duct cleaning, service agreements, equipment, etc.? And what do you get 20% commission on?

    20% of 900k is 180k, plus your $20/hr wage....
  21. Replies
    128
    Views
    17,845

    Or he may have been referring to annual revenue...

    Or he may have been referring to annual revenue he created for the company he works for.
  22. Replies
    13
    Views
    3,955

    Why are LG's Cool Art on the way out?

    Why are LG's Cool Art on the way out?
  23. Thread: New Lennox system

    by Wild
    Replies
    218
    Views
    21,036

    For a contractor to become a Lennox Premier...

    For a contractor to become a Lennox Premier Dealer they must receive a good review on the customer surveys that Lennox sends out to their customers. However the contractor gets to decide which of...
  24. Thread: Not my day

    by Wild
    Replies
    52
    Views
    4,374

    Yo Bannerd! Why did you post pics of only the...

    Yo Bannerd!

    Why did you post pics of only the gas piping connected to the furnace when you’ve apparently completed the install? The fittings obviously haven’t been tightened in the pics. Are you...
  25. Replies
    54
    Views
    3,353

    I doubt any of the four contractors will...

    I doubt any of the four contractors will entertain you’re request of a breakdown on the pricing of materials and labor cost. Even if a company did share with you how much they mark up their price on...
  26. So I wonder what will happen when CynicX...

    So I wonder what will happen when CynicX customers discover they’re only going to receive a $1500 tax credit versus what they were promised by his company. I’d think the company would be responsible...
  27. Credit Details: 30% of the cost, up to $500 per .5 kW of power capacity

    If this solar panel is only 170 watts then how much of a tax credit can you claim?
  28. Replies
    499
    Views
    37,077

    Well you were the one that was coming to the...

    Well you were the one that was coming to the conclusion that the only explanations of a furnace being 30% less efficient are that the flue gas must be 340 deg or there’s hydrocarbons that are...
  29. Replies
    499
    Views
    37,077

    It’s not so much that there is less heat to...

    It’s not so much that there is less heat to transfer but rather less heat is being transferred.



    When manufactures rate their equipment in a laboratory they squeeze of every bit of efficiency...
  30. Replies
    499
    Views
    37,077

    If you calculate duct loss that’s a separate...

    If you calculate duct loss that’s a separate issue. So I agree with you that anyone calculating duct losses and blaming it on the furnace is BS. If they are calculating duct losses and then offering...
  31. Replies
    499
    Views
    37,077

    Okay, so what method do you suggest for...

    Okay, so what method do you suggest for calculating efficiency in the field?
  32. Replies
    499
    Views
    37,077

    You keep thinking in terms of the lowest flue...

    You keep thinking in terms of the lowest flue temp equates to the highest efficiency. Or that if a furnace is less efficiently transfering heat then the lost efficiency must be hiding somewhere in...
  33. Replies
    499
    Views
    37,077

    There’s no doubt in my mind that there are many...

    There’s no doubt in my mind that there are many people here that are much smarter than I am. So perhaps somebody on this board can explain something to me.

    I don’t understand how a heat exchanger...
  34. Replies
    499
    Views
    37,077

    1. We install furnaces in accordance with...

    1. We install furnaces in accordance with manufactures recommendations and in compliance with all national and local codes. And yes that includes being properly sized and having proper airflow. But...
  35. Replies
    499
    Views
    37,077

    I don’t measure heat loss in the flue I measure...

    I don’t measure heat loss in the flue I measure it in the ducts at the furnace where it’s being delivered. And no your example doesn’t seem realistic. How are you measuring 21,000 Btu’s in the flue?
  36. Replies
    499
    Views
    37,077

    When I say thermal efficiency I’m referring to...

    When I say thermal efficiency I’m referring to delivered Btu’s in the duct at the furnace. I don’t go around the house measuring duct loss, besides all the duct is in a conditioned space so I think...
  37. Replies
    499
    Views
    37,077

    Yeah, the next question I ask them is what type...

    Yeah, the next question I ask them is what type of furnace they had in before we replaced it last year. Funny how many people can’t answer that question. But I can tell you the vast majority of the...
  38. Replies
    499
    Views
    37,077

    Too much flue gas still in the flue after the...

    Too much flue gas still in the flue after the furnace has cycled off. And the only thing it does efficiently is rot out the pipe.
  39. Replies
    499
    Views
    37,077

    I guess that must be it, after all there just...

    I guess that must be it, after all there just isn't a reasonable explanation for the manufacturers to focus on only the benifits of their product.
  40. Replies
    499
    Views
    37,077

    I test furnaces quite a bit as a service and...

    I test furnaces quite a bit as a service and installation tech. I don’t really consider that to be research or evidence, just on here sharing what I see in the field and learning from what others...
  41. Replies
    499
    Views
    37,077

    I was referring to thermal efficiency which I...

    I was referring to thermal efficiency which I thought was the topic of discussion in regards to the efficiency loss being discussed in this thread.

    I’m not exactly sure what you’re asking with...
  42. Replies
    499
    Views
    37,077

    I’m not following what you’re asking or saying. ...

    I’m not following what you’re asking or saying.

    When the furnace is in the low stages you have less efficient heat transfer to the heat exchanger. If it’s a condensing furnace it exhausts the...
  43. Replies
    499
    Views
    37,077

    Many homeowners see little savings, no savings,...

    Many homeowners see little savings, no savings, or a small increase in their gas bills. Most don’t voice their complaint and the ones that do hear excuses about increased gas prices or colder...
  44. Replies
    499
    Views
    37,077

    This thread is making my head spin thinking about...

    This thread is making my head spin thinking about heat transfer in a hx.

    The bottom line is that in high fire or any time you increase the gas pressure you’re going to have a hotter flame and...
  45. Replies
    499
    Views
    37,077

    The draft inducer motor does slow down but I’ve...

    The draft inducer motor does slow down but I’ve still never measured the same level of excess air (O2) in high and low fire. What I find is that in low fire the O2 is on average 3-4% higher.

    I...
  46. Replies
    499
    Views
    37,077

    In regards to your question, how can you have the...

    In regards to your question, how can you have the same amount of excess air in low and high fire? In low fire you have a lower gas pressure and therefore more excess air. So the excess air will never...
  47. Replies
    499
    Views
    37,077

    Ok I think I get it now, thanks Captain Irony.:D...

    Ok I think I get it now, thanks Captain Irony.:D However you’re comparing how two different fuels are burning at complete combustion. And in this case CO burns hotter and releases less heat than...
  48. Replies
    499
    Views
    37,077

    It was confusing me because I think in terms of...

    It was confusing me because I think in terms of burning fuel and CO is just a product of combustion not something that also burns and affects the flame temperature.
  49. Replies
    499
    Views
    37,077

    So let’s say on a typical 70,000 Btuh furnace you...

    So let’s say on a typical 70,000 Btuh furnace you have 1.7” w.c. in low fire with a 12% O2 reading and in high fire its 3.5” w.c. with a 9% O2 reading. So the difference in flame temperature is 500...
  50. Replies
    499
    Views
    37,077

    I noticed you brought up CO burning a number of...

    I noticed you brought up CO burning a number of times but I’m not making the connection of how it’s affecting efficiency or flame temperature in the combustion chamber. Could you explain this a...
Results 1 to 50 of 249
Page 1 of 5 1 2 3 4

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.
Quality Home Comfort Awards