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Type: Posts; User: jkish

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  1. Replies
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    The one that is hardest to get around for me is...

    The one that is hardest to get around for me is EER. I thought that measured full out steady state efficiency and the Carrier unit is rated almost 50% higher. Maybe this gets countered by the 150%...
  2. Replies
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    Sorry, thought it was obvious... Comparing new...

    Sorry, thought it was obvious...

    Comparing new Carrier inverter based system with existing systems using the same technology (but having years to refine) and wondering why the huge discrepancy in...
  3. Replies
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    The numbers I listed were for non-ducted indoor...

    The numbers I listed were for non-ducted indoor units on the VRV.

    The ducted numbers are worse (as you say), but are more of an apples to apples comparison:

    EER: 9.0
    SEER: 13.2
    HSPF: 8.8
    ...
  4. Replies
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    Here's what I don't understand: Looking in the...

    Here's what I don't understand:

    Looking in the ARI database at 4 ton units:

    Carrier Greenspeed

    EER: 13
    SEER: 18.3
    HSPF: 12.5
  5. Replies
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    Word is that Carrier is coming out with a...

    Word is that Carrier is coming out with a inverter based heat pump in the next few months if you can wait that long.
  6. Any details on this? Timeframe?

    Any details on this? Timeframe?
  7. Replies
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    I think a heat pump is a good idea for Atlanta,...

    I think a heat pump is a good idea for Atlanta, but it gets colder from time to time than you might think. For example, here are the lows for the first couple of week of January this year:

    Jan 1 ...
  8. Replies
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    3,699

    Ha Ha, no, not an angry (or any other kind of)...

    Ha Ha, no, not an angry (or any other kind of) contractor - no worries :yes:

    I've updated my address in my profile.

    Thanks!
  9. Replies
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    3,699

    I would like to get a copy of your requirements...

    I would like to get a copy of your requirements list if you don't mind sharing again.
  10. Thread: Manual J Results

    by jkish
    Replies
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    2,000

    I've been interested in foaming my attic for over...

    I've been interested in foaming my attic for over a year, but getting reliable information is difficult - lots of different opinions on foam type (open/closed cell), depth required, etc.

    What did...
  11. Slightly OT, but where does the Daikin VRV-S...

    Slightly OT, but where does the Daikin VRV-S system stand with the federal energy rebates? Last I saw, they didn't qualify, but there was some talk about new ratings possibly changing that.
    ...
  12. Replies
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    Robo is right - the credit availability has...

    Robo is right - the credit availability has nothing to do with your withholding level.
  13. Thread: New Design

    by jkish
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    587

    This will be out soon?

    This will be out soon?
  14. Replies
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    Huh? I said or implied nothing that indicated...

    Huh?

    I said or implied nothing that indicated my support or lack of support.

    Just pointing out that using the word "instituted" is inaccurate.

    FWIW, I think it would be a good thing subject...
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    I believe this is only a proposal, nothing is...

    I believe this is only a proposal, nothing is been instituted yet, and would require Congressional approval.
  16. Replies
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    I believe they were extended this year through...

    I believe they were extended this year through the end of August.

    Check at http://www.carriercoolcash.com
  17. Replies
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    7,359

    If you are only considering the HP performance...

    If you are only considering the HP performance between 30 and 65 degrees, the average COP is probably better than 3.25.

    I quickly looked up the COP ranges for a 4 ton Amana ASZ18 HP on low stage:...
  18. Replies
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    1,098

    I got a huge improvement in my heating/cooling...

    I got a huge improvement in my heating/cooling costs by sealing the duct boots to the drywall. I did this from the inside by removing the register grills and sealing with mastic.
  19. Replies
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    Nordyne IQ Drive

    Nordyne IQ Drive
  20. Thread: Infinity series

    by jkish
    Replies
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    4,275

    I track my NG costs by taking the total billings...

    I track my NG costs by taking the total billings over the last 12 months divided by the total therms used over that last 12 months. Over the last 12 months my average billed price per therm including...
  21. Thread: Infinity series

    by jkish
    Replies
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    4,275

    1 Therm = 100,000 BTU 1KW = 3414 BTU Gas:...

    1 Therm = 100,000 BTU
    1KW = 3414 BTU

    Gas:
    1,000,000 BTU = 10 Therms
    95% Efficient furnace so input Therms = 10/.95 = 10.526
    10.526 Therms @ $1.25/Therm = $13.16

    HP:
    1,000,000 BTU/ 3414...
  22. But, since all brands have inflated SEER numbers,...

    But, since all brands have inflated SEER numbers, when you bought the unit with a 16 SEER rating you were only getting maybe 11 SEER installed.

    Still not sure I see how inverter technology is...
  23. Ok, I'll bite - How does the fact that SEER...

    Ok, I'll bite - How does the fact that SEER ratings are inflated across the board nullify the purpose of an inverter?
  24. So, how does that affect Nordyne more than any...

    So, how does that affect Nordyne more than any other manufacturer?

    Wouldn't a 22 SEER unit under lab conditions still be an improvement over 18 SEER unit under the same conditions?
  25. Replies
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    Yes, I was assuming a setback in the rest of the...

    Yes, I was assuming a setback in the rest of the house. In the summer, I could see the MBR at say 75 and the rest of the house at 78 or something like that.

    As you say, it may not make enough...
  26. Replies
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    One configuration that I was interested in might...

    One configuration that I was interested in might fall into this category.

    I was thinking that having the master bedroom/bath on a single zone would allow that zone to have very different...
  27. Replies
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    1,292

    Are they going to have a zoning solution with the...

    Are they going to have a zoning solution with the heat pump product?
  28. Thread: Carrier Rebates

    by jkish
    Replies
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    4,019

    Here is the FAQ: ...

    Here is the FAQ:

    https://www.carriercoolcash.com/carrier/faq.do?faqCountry=USA
  29. Replies
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    3,589

    To me, that indicates the value of doing one...

    To me, that indicates the value of doing one yourself if for no other reason than to have a ballpark number to compare others against. Mine could be inaccurate in some areas, but I'm sure it is close...
  30. It may have just been perception, but the...

    It may have just been perception, but the process, at least as far as I got into it, seemed to lack any rigor. The Daikin sales engineer started by just taking my existing system size and broke it...
  31. No, not yet. I had the Daikin reps and a...

    No, not yet.

    I had the Daikin reps and a contractor they picked out a few months ago, but I was disappointed in what seemed to be a "seat of the pants" design. Maybe I was expecting too much...
    ...
  32. Heat pump - didn't ask about zoning.

    Heat pump - didn't ask about zoning.
  33. FWIW, I just received some info on this: ...

    FWIW, I just received some info on this:

    Product bulletin was released last week to distributors last week.

    June 2009 availability.
  34. Replies
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    FWIW, the Daikin sales engineer did a quick first...

    FWIW, the Daikin sales engineer did a quick first pass on a design when he was out at our home and had 6 tons of indoor capacity mated with 4 tons of outdoor capacity. I questioned it since I had...
  35. Replies
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    I did an HVAC-Calc gain/loss analysis about a...

    I did an HVAC-Calc gain/loss analysis about a year ago and used the defaults for Atlanta:

    Design Conditions: Atlanta

    Indoor:
    Summer temperature: 75
    Winter temperature: 72

    Outdoor:...
  36. Replies
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    4,289

    I'm in the north Atlanta suburbs. I have a 80%...

    I'm in the north Atlanta suburbs.

    I have a 80% gas furnace / 10 SEER AC combo that I was looking to upgrade. Originally thought I wanted to go dual fuel HP, but got interested in the inverter...
  37. Replies
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    4,289

    Do you know Bernie K?

    Do you know Bernie K?
  38. Replies
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    Anybody actually installed a Daikin heatpump?

    If so, I would love to hear how it worked out for you, especially if you have a ducted setup.
  39. Replies
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    3,833

    We installed the humidifiers before I made a...

    We installed the humidifiers before I made a bunch of improvements to the infiltration. Last winter, we didn't have much need for the humidifiers and so it may not be needed at all once we switch to...
  40. Replies
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    When I get ready to run it again, I'll ask for...

    When I get ready to run it again, I'll ask for some guidance.

    The total infiltration loss is 8100 first level and 3400 second level.

    We currently have electronic air cleaners and steam...
  41. Replies
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    The design conditions came directly from...

    The design conditions came directly from HVAC-Calc. I checked around a bit and found several references to Atlanta outdoor conditions that all were either 22*-92* or 23*-91* so I think those are...
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    I'm in Atlanta and used 22* and 92* outdoor with...

    I'm in Atlanta and used 22* and 92* outdoor with 99 grains of moisture. Indoor temps were 72 winter, 75 summer, 50% humidity.

    They were talking about two 4 ton units and letting the bottom level...
  43. Replies
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    The house has systems on 3 levels and I did the...

    The house has systems on 3 levels and I did the calcs for the top 2 which is about 4000 sq ft. The middle level is about 2800 sq ft and had a heat gain of 39K (34K sensible) and a heat loss of 55K....
  44. Replies
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    The Daikin rep mentioned the VRV-Express report...

    The Daikin rep mentioned the VRV-Express report and I think he said he was going to email me a copy based on the rough design he put together. I'm a little worried that he just took the existing...
  45. Replies
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    3,833

    Daikin VRV-S Specs

    I had a Daikin sales engineer out with some contractors today to take a look at my home. They left me with a brochure and the ARI numbers are confusing to me for a system touted as being one of the...
  46. Replies
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    2,092

    MChild, did you ever get your system installed...

    MChild, did you ever get your system installed and if so, any comments on performance?

    Is the VRV III-S available in the US yet?
  47. Replies
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    395

    Any IQ Drive Heat Pump News?

    Last I heard, it was delayed until 2009.

    That info is now 6 months old - anybody have any updates?

    Any news on next gen IQ Drive systems in general?
  48. Replies
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    I was just going by the fact that there was no...

    I was just going by the fact that there was no Last edited by hopps1124 : Today at xx:xx AM. in the second post.

    Although I now see a message in the first post that has it in it - not sure what is...
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    Looks like he was trying to do as you asked by...

    Looks like he was trying to do as you asked by reposting with no prices.
  50. Replies
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    Do Tell! Is there any timeframe for this?

    Do Tell!

    Is there any timeframe for this?
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