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  1. Options for 80% NG Furnace Comfort Improvement...

    I have an 80% NG furnace in an unfinished part of my basement. It is up against a wall it shares with the garage and directly across from it is an exterior wall. To the left side is a foundation...
  2. Since no one else has stated the obvious, I guess...

    Since no one else has stated the obvious, I guess I will...

    Those pictures don't really mean much in regards to the life of the filter. The only way to truly know if the filters are at the end is...
  3. Thread: wire size

    by badtlc
    Replies
    19
    Views
    2,283

    He may be a master electrician but #6 is the...

    He may be a master electrician but #6 is the absolute most conservative choice and overkill. The code allows #8 for 55A as long as the breaker terminals, equipment terminals and insulation all meet...
  4. Thread: wire size

    by badtlc
    Replies
    19
    Views
    2,283

    That is only if both the terminals on the breaker...

    That is only if both the terminals on the breaker and equipment are 90C rated.

    #8 AWG is OK if all the requirements are met (assuming 52A load/min circ rating). The terminals need to be 90C rated...
  5. Replies
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    1,758

    I have a muffler on my discharge line on my heat...

    I have a muffler on my discharge line on my heat pump due to high frequency resonant vibration noise coming off of my heat pump lineset in heating mode. I needed it because my contractor clamped the...
  6. Replies
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    7,865

    Another factor to keep in mind if you are looking...

    Another factor to keep in mind if you are looking at long term costs associated with the humidifier, do you want to conserve water or conserve elec or natural gas used to heat the water? If your...
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    18,070

    If talking about portable generators and...

    If talking about portable generators and temporary connections, the transfer switch is not required, but there are some disconnection requirements.
  8. Replies
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    18,070

    You don't want to switch the ground conductor. ...

    You don't want to switch the ground conductor. That is dangerous.
  9. Replies
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    18,070

    Electronics don't need "clean power." 99% of...

    Electronics don't need "clean power." 99% of electronics are DC and are converting the power using switching power supplies. These types of power supplies don't care what shape the AC power is as...
  10. The t-stat shouldn't be able to lockout the Aux...

    The t-stat shouldn't be able to lockout the Aux heat during defrost if wired properly.
  11. Replies
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    10,853

    It is a pretty simple calculation to determine...

    It is a pretty simple calculation to determine the temperature at which the furnace becomes cheaper to operate than the heat pump. It is more of a utility cost issue than an efficiency issue, but...
  12. Replies
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    10,853

    That is common. Did you ever notice a time when...

    That is common. Did you ever notice a time when your current AC or furnace didn't keep up? Did you ever notice either the AC or Furnace short cycling during extreme temps?

    It is a sad day, but...
  13. Replies
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    10,853

    That is fine, but the economics justify it. ...

    That is fine, but the economics justify it. Personal preference is just that, personal. I'm talking black and white, dollars and cents.
  14. Replies
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    10,853

    Even then, there are months during the year where...

    Even then, there are months during the year where the heat pump is going to more than pay for itself. The colder the climate just means you look at spring and fall for the heat pump payback/savings...
  15. Replies
    45
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    10,853

    You could always take the money you save buying...

    You could always take the money you save buying the 80% and invest it in insulation and infiltration reduction and come out about the same.
  16. Replies
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    10,853

    You apparently stopped reading at the part you...

    You apparently stopped reading at the part you highlighted in red. Don't worry, many people make the same mistake. Even Canada and Alaska have MONTHS of weather above 20F.
  17. It is what it is. If you are asking if that is...

    It is what it is. If you are asking if that is good or bad, that is your call. That is not abnormal. Some people's heat pump are sized such that they can't maintain below 35 degrees. My heat pump...
  18. Replies
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    10,853

    The only place a heat pump isn't suitable is when...

    The only place a heat pump isn't suitable is when there isn't a heating season. It is never too cold of climate to install a heat pump. Even if a climate gets too cold for the heat pump during...
  19. that is a great tool. wish my t-stat did that.

    that is a great tool. wish my t-stat did that.
  20. It depends on the size of the equipment and...

    It depends on the size of the equipment and setup, but 2-stage scroll compressors can provide an energy efficiency gain in 1st stage.

    For example, my 3-ton 2-stage scroll compressor on my heat...
  21. I had to fix the wiring on my t-stat myself on a...

    I had to fix the wiring on my t-stat myself on a new install. The installing company came out 3 separate times and never once looked at the t-stat wiring as part of the cause. I couldn't afford a...
  22. Replies
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    1,553

    to get the most, you need a quality programmable...

    to get the most, you need a quality programmable t-stat that allows you to lockout the aux heat strips and has good, predictive recovery programming. Then....

    1) Find out what setbacks you want...
  23. this really sounds more like they got the O...

    this really sounds more like they got the O setting wrong on the t-stat or miswired it.
  24. Replies
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    4,592

    Sounds like the lineset is strapped down instead...

    Sounds like the lineset is strapped down instead of suspended and isolated from the house structure.
  25. Replies
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    3,145

    Did you see any ice melting during the defrost...

    Did you see any ice melting during the defrost cycle? I don't think the sequence is going to randomly change. Seems more like a reversing valve issue.
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