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  1. Replies
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    Bath Exhaust - metal or PVC?

    Name says it all. Anyone have prefences on which way to pipe the bath exhaust? Sidewall discharge (no access to attic or soffitting from bath).
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    12,907

    Separate the fan speed selections for heating and...

    Separate the fan speed selections for heating and cooling. The MBE blower gives you the choice of 4 speeds for each, but then the +10%/-15% adjustments apply to both. It would be nice to apply the...
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    10,807

    By the way, in my earlier post, I meant the bulb...

    By the way, in my earlier post, I meant the bulb position, not the valve. Figured y'all would know what I meant, but wanted to be clear...
  4. I would think that you could set up your...

    I would think that you could set up your thermostat to do two stages of aux heat - with the compressor running on both.

    However, I'm not sure that you can stage the 4 elements in the way it was...
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    10,807

    I assume we're talking about the TXV in the...

    I assume we're talking about the TXV in the outdoor unit? It is installed certainly north of 10 - probably around 11. I'll have to have the installer look at that - they're gonna come back in the...
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    Here's the tech specs:...

    Here's the tech specs:
    http://securenet.goodmanmfg.com/pdf/infoPdf/Lit/RT6214003R4.PDF
    See pages 24-25. That has the pressure readings by outdoor temperature.
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    10,807

    Can't wait until summer. I can stick my head...

    Can't wait until summer. I can stick my head between my new 4-ton Amana and my 5yo 1.5 ton Comfortmaker.

    I'm betting the Comfortmaker is louder...

    And I'm guessing that my neighbor's unit will...
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    Anything on ASZ16048, MBE2000, CAPF048060, TXV?

    Anything on ASZ16048, MBE2000, CAPF048060, TXV?
  9. Replies
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    I had a similar issue with vibrating linesets. ...

    I had a similar issue with vibrating linesets. It SEEMS to be better once the refrigerant charge was reduced (it was well over the spec based on outdoor temp). Never had the muffler installed.
    ...
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    First of all, your basement doesn't add much (if...

    First of all, your basement doesn't add much (if any) to your cooling requirements. You'll need some airflow down there just to keep it from getting musty. Heating is a different story.

    I live...
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    In the winter, I have it pulling the air up. ...

    In the winter, I have it pulling the air up. This is to keep the slight breeze away from my skin - otherwise, it could be felt as a draft, and be tempted to raise the setpoint. With it pulling the...
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    In my house, the entryway and living room are...

    In my house, the entryway and living room are both double-height (19-20' or so). Probably around 500 sqft.

    In the middle of the living room is a ceiling fan. It stays on all the time (on low). ...
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    Quiet?

    The last thing I want in my bathroom is the ultra-quiet fan.

    The fan can do a pretty good job of masking the sounds of my toileting.

    Or if you and the wifey are in the shower...

    "Middle of...
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    2,089

    Manual J is a load calculation to determine the...

    Manual J is a load calculation to determine the size of your units.

    Manual D is a duct sizing calculation. Critical if you want to have a quiet system.
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    Aw heck, I'm in the mood to post today. When I...

    Aw heck, I'm in the mood to post today.

    When I got my contract for my heat pump last year, it specified 10% deposit upon signing. The shop is an "owner + 3", so small but not a one-man show.
    ...
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    Make them run a Manual D for the ductwork. ACCA...

    Make them run a Manual D for the ductwork. ACCA guidelines for supply trunks is 700-900 fpm velocity. For 1600 CFM (4 tons), you should be between 12x24 and 12x30. Now, if they want to run round...
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    The indoor units are the same. The outdoor...

    The indoor units are the same.

    The outdoor units are different. The Goodman units are GSZ. Slightly different specs.

    Both are Copelands. In fact, if you read thru here, almost all of the...
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    If you're talking heat only - the amount of air...

    If you're talking heat only - the amount of air required for a furnace is smaller because the temperature differential is higher. A heat pump will give you a 20-30 degree rise in output air temp. A...
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    Who did you pay off for that? Seems any board I...

    Who did you pay off for that? Seems any board I get from HD or Lowes is for building round houses with curved walls.
  20. I'll toss my 2 cents in also. 4 stages of heat...

    I'll toss my 2 cents in also.

    4 stages of heat might be nice, but it is probably overkill. A lot of times, two stage furnaces are used to "even out" the heating cycle. By using a lower fire rate...
  21. I'm convinced the IAQ doesn't show the actual...

    I'm convinced the IAQ doesn't show the actual indoor temp, but rather will show the setpoint temp if it is "somewhat close".

    In other words, during my recovery from 68 to 71, I'll see the temp...
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    Gary - I think you misread what he said. It was...

    Gary - I think you misread what he said. It was per kilowatt hour.
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    Did a google on the thermostat you mentioned. At...

    Did a google on the thermostat you mentioned. At ProThermostats.com, the price difference between the IAQ and the Climatouch you reference is less than $10. And the IAQ is the lower priced one.......
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    Bama - There are very few combined...

    Bama -

    There are very few combined thermostats/humidistats. The VP IAQ is one of them (maybe the only one outside of Infinity?). It can control both the winter humidification and summer...
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    I just got rid of my electric furnace and...

    I just got rid of my electric furnace and replaced it with a heat pump because my winter bills were just too high.

    November thru January, I've saved over $400 based on electric usage per heating...
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