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  1. Replies
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    Your best course is to have a technician check...

    Your best course is to have a technician check it. Oil burners need annual service. When was yours last serviced?
  2. A variable speed furnace in an oversized furnace...

    A variable speed furnace in an oversized furnace still has to move the necessary volume of air. It won't solve the noise issue. Only the right furnace will solve it.
  3. My gut reaction is the smaller the better. A...

    My gut reaction is the smaller the better. A bigger furnace needs more airflow than a smaller one and if you want the blower to be quiet, then use a smaller furnace.
  4. I don't like Goodman because of the many very...

    I don't like Goodman because of the many very poor installations I've seen.
    The most important thing is to get the right size (the size of the old unit means nothing) for the house and a proper...
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    We use term Jammitall

    We use term Jammitall
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    292

    Don't hire the lowest bidder and don't shop...

    Don't hire the lowest bidder and don't shop according to price.
  7. Replies
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    500

    *****'n = compliment'n ?

    *****'n = compliment'n ?
  8. X2. You must connect to a tank. Dennis of BluVac...

    X2. You must connect to a tank.
    Dennis of BluVac posted an excellent explanation of why this is so.
  9. I much prefer the wireless outdoor sensor because...

    I much prefer the wireless outdoor sensor because it can be positioned on the north side of the house. Wired sensors are usually placed near the heat pump because that's where the wires are. That is...
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    To elaborate on Manual J and Manual D. The first...

    To elaborate on Manual J and Manual D. The first will determine what size furnace is needed to avoid having one that is too big which will cycle too much. The second will ensure that the duct system...
  11. Replies
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    Why do you call this an "emergency" shut off? It...

    Why do you call this an "emergency" shut off? It is no such thing. It is a SAFETY shut off. Reset at your peril.
  12. Replies
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    You state 3 tons. How was that determined? If no...

    You state 3 tons. How was that determined? If no load calculation has been done then the size is likely to be wrong. Then the whole things is a waste of effort.
  13. A business has overhead - taxes, vehicles,...

    A business has overhead - taxes, vehicles, gasoline, tools, training, licensing, insurance, etc.
    For which of those things should the business NOT be paid? Who will warrant the part and...
  14. Auxiliary heat does not need as much air flow as...

    Auxiliary heat does not need as much air flow as the heat pump. If the duct system is big enough for the heat pump it is certainly big enough for the electric heat.
    However, because ceiling...
  15. If the outdoor sensor is exposed to direct...

    If the outdoor sensor is exposed to direct sunlight it may have a false reading. We had that problem with wired sensors. I use the Prestige thermostat with wireless outdoor sensor which can be easily...
  16. Thread: Ductless Mini

    by kdean1
    Replies
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    234

    X2 for Mitsubishi Hyper Heat. I have one in my...

    X2 for Mitsubishi Hyper Heat. I have one in my building. It's terrific!
    And our customers like them, too.
  17. Thread: New here!!

    by kdean1
    Replies
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    235

    Hi Tony. How you doin'? (In best Italian accent)

    Hi Tony. How you doin'? (In best Italian accent)
  18. The AAB is very good for the price. When I bought...

    The AAB is very good for the price. When I bought mine I measured a few ducts in our house and the results were close to my expectations.
    I have not compared it to blower charts or my Fieldpiece...
  19. Replies
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    Clean the condenser fan blades? I have never...

    Clean the condenser fan blades? I have never encountered dirty blades. And since when does dust cause rust?
    I'm sure we ALL remove the condenser coils on every job.

    Who made this stuff up?
  20. Replies
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    Why are wires connected to both RV terminals?

    Why are wires connected to both RV terminals?
  21. ^^^ as above. If the outdoor temperature is...

    ^^^ as above.
    If the outdoor temperature is below 30* I would expect the heat pump/compressor to run constantly.
  22. Replies
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    Since the equipment prices are probably close to...

    Since the equipment prices are probably close to each other, the difference is in labor. I know what my labor and that of my installers is worth. There is a reason someone else has considerably lower...
  23. Thread: Do I need to...

    by kdean1
    Replies
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    423

    Can the duct be on the wall of the furnace room....

    Can the duct be on the wall of the furnace room. That's a question rather than a statement, right?
    What do you mean by duct? A duct is an enclosure, not a grille. If you enclose a passage from the...
  24. Flex has much more resistance to the flow of air...

    Flex has much more resistance to the flow of air than a metal trunk. Without seeing the situation I am inclined to recommend insulating the trunk and replace the branch lines with foil covered flex.
  25. Thread: Do I need to...

    by kdean1
    Replies
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    423

    If you are finishing the basement I would...

    If you are finishing the basement I would recommend a return there. It just has to be ducted to a place other than the furnace room.
  26. It doesn't take long to measure static pressure....

    It doesn't take long to measure static pressure. Some don't know how to do it, some don't want to take the time.
  27. Replies
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    My wrench has 9/16" and 1/2" on the same end....

    My wrench has 9/16" and 1/2" on the same end. Refrigeration square on the other.
  28. You may be able to remove a 4' section of trunk...

    You may be able to remove a 4' section of trunk to access the back and then reinstall the trunk. It won't be fun but you can reach things then. Or dig a trench and you'll always have access.
  29. Not here! Temperatures will be 14* on Saturday...

    Not here! Temperatures will be 14* on Saturday and 1*F for the nights.
  30. Is that boiler supposed to have a draft hood?

    Is that boiler supposed to have a draft hood?
  31. Thread: Do I need to...

    by kdean1
    Replies
    10
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    423

    Do not put an opening on the return plenum by the...

    Do not put an opening on the return plenum by the furnace unless the furnace has a sealed combustion system with a 2 pipe venting system. You'll risk interfering with the venting.
  32. Do you have a code agency where you live? If so,...

    Do you have a code agency where you live? If so, invite them to inspect the furnace and water heater. The furnace vent pipe is single wall which should have a 6" clearance to any flammable material....
  33. Replies
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    Regarding an intelligent, economical decision - a...

    Regarding an intelligent, economical decision - a new matched system can be expected to deliver at least 10 years of comfort and economy. A mismatched, improperly system may give you 5 years of...
  34. Two things in the picture are of concern. Neither...

    Two things in the picture are of concern. Neither has to do with CO or rust.
    1. Flexible gas connector penetrates furnace cabinet. This is a code violation and a safety issue.
    2. The bundle of rope...
  35. Replies
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    Do you really heat the house to 75* and cool it...

    Do you really heat the house to 75* and cool it 70*? That seems to build in extra capacity right off the bat.
    A mis-matched system is something we have all encountered and struggled to resolve....
  36. Wow! That's a good technique to foster...

    Wow! That's a good technique to foster cooperation.
    Since I don't have a direct answer to your question as I've never had to add relays for my applications, I was going to suggest having two...
  37. Thread: Cold weather

    by kdean1
    Replies
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    795

    My dad took a position at OU in the late 60's....

    My dad took a position at OU in the late 60's. They have retired and relocated to Cincy where my brother also lives. We like the town so we're still here.
    My sister lives in Texas. You probably know...
  38. Here's a study from 2011 about CO detector...

    Here's a study from 2011 about CO detector failure rates.
    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3222366/

    A partial quote - "We tested 30 detectors in use and found that more than half...
  39. None of them which are manufactured to UL 2034...

    None of them which are manufactured to UL 2034 are reliable.
    coexperts_dot_com has one and NSI 300 from National Comfort Institute are the only ones I consider worth owning or selling.
  40. Thread: Cold weather

    by kdean1
    Replies
    37
    Views
    795

    We had -20*F last winter. I don't factor in wind...

    We had -20*F last winter. I don't factor in wind chill.
    If a heat pump wasn't working we told the customer we would deal with that later and made sure the auxiliary heat was working.
    Before our...
  41. Replies
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    I think we've offered a great deal of help. Our...

    I think we've offered a great deal of help. Our advice prevented the installation of a furnace that is 4 times the size that your house needs. Your initial request was to critique the plan. We've...
  42. Replies
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    They must be sized differently. The blower has...

    They must be sized differently. The blower has the same volume going in as going out.
  43. Replies
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    591

    We do sizing and layouts for our customers. If...

    We do sizing and layouts for our customers. If this contractor is not doing it, then you should not be his customer. He'll be the one making excuses rather than fixing matters if the air distribution...
  44. Replies
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    And don't pick at it. It will leave a scar.

    And don't pick at it. It will leave a scar.
  45. Replies
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    508

    Oil fired or electric water heater? There should...

    Oil fired or electric water heater? There should be no issues with an electric one. If it is oil fired (does such a thing exist?) or gas fired the blanket should be well away from the burner opening....
  46. Replies
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    591

    Re. the supply system - make sure there is enough...

    Re. the supply system - make sure there is enough air flow for high fire capacity. Was this duct system designed by your contractor? Is this the same system they were going to use with the 70k Btu...
  47. It is not configured properly. Configuration menu...

    It is not configured properly. Configuration menu item 5 has choice of cool-off-heat-auto or cool-off-heat-emer-auto.
    I must also question the installer's competence.
  48. Replies
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    591

    The return is big enough but the supply system...

    The return is big enough but the supply system will be undersized in high-fire.
    Is this a new contractor or same one that suggested a 70k Btu? What convinced them to change?
  49. Replies
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    Those birds will have a VERY short life...

    Those birds will have a VERY short life expectancy.
  50. Replies
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    Since it was HIS work and the furnace HE sold...

    Since it was HIS work and the furnace HE sold you, HE should fix it, not YOU. Call him back.
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