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  1. I am building a "green home" and found the A.O....

    I am building a "green home" and found the A.O. Smith Vertex 100 96% efficient. Actually more efficient than most tankless systems but retrofits in a tank environment perfectly. Hope that helps. ...
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    Each unit is located very close to the vents they...

    Each unit is located very close to the vents they serve. Strategically placed them so they wouldn't have but just a very short distance between them and where they blow out. (whatever the industry...
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    There in. IQ 23 SEER (NuTone)

    Just wanted to share with ya'll. I did lots of research and talked on here with many and decided to go with the 23 SEER IQ systems. 4 of them to be exact. House is still under construction and we...
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    Thanks, thats great advice. And yes we are...

    Thanks, thats great advice. And yes we are having an Aprilaire 5000 installed on each unit. Using JPL flex insulated flex duct. They did do a Manual J S & D and am sure we are sized right. (plus a...
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    New IQ Drive Installation

    My new home is in the HVAC rough in stage now. Having 4 Nutone 23 SEER IQ Drives installed. Overheard the HVAC technician say that this was the first IQ system he has installed and I asked him...
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    Thanks beenthere, That is what the HVAC guy...

    Thanks beenthere,

    That is what the HVAC guy recommended. 2 UltraZones from EWCcontrols.com Said they run independent from the furnace and will only cycle when needed and require very little...
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    Been in some very well built homes and nights are...

    Been in some very well built homes and nights are still very dry with natural gas furnaces running when it's 15 to 25 degrees and dry outside. At least here in north Ga that is.
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    IQ Drive 23 Seer Humidifier?

    Hi All,
    We are building our retirement home on the lake. ~10K SF and will have 4 units. Question for all who know about the new IQ Drive 23 SEER systems by Nordyne.. We will have approximately...
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    looks like saving the $10k going with amana will...

    looks like saving the $10k going with amana will let me also afford some zoning and add humidifiers for the winter months and still be in the same ballpark with utility bills.
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    Me being a total novice at all this, does it make...

    Me being a total novice at all this, does it make more sense to spend 10K extra for 23 seer vs 18 or save the 10k AND get higher EER
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    SEER vs EER and 95+ degrees

    I am trying to get some of the confusion I have about the SEER vs EER rating straightened out. I am trying to decide on two different systems for new construction. One is a Westinghouse 23 SEER...
  12. multi-stage high efficiency hvac and zoning are they compatible

    Looking at installing several high efficiency HVAC units in a new construction. The way they operate, changing speeds for efficiency (compressor load and fan speeds), will they co-exist ok with...
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    And to totally confuse a novice the EER ratings...

    And to totally confuse a novice the EER ratings on the Amanas are at least equal to and on two units actually better than the Westinghouse units. Any input would be greatly appreciated.
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    Being a true newby, may be a dumb questions, -...

    Being a true newby, may be a dumb questions, - Can a manual j be done with blueprints? We will begin construction in 2 months so all we have right now is a set of blueprints.
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    There is not a Westinghouse 23 Seer 5 ton unit so...

    There is not a Westinghouse 23 Seer 5 ton unit so there will be a 3 ton and 2 ton for the kitchen/dining/living area in place of the amana 5 ton unit
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    I'm newby but here it goes -After 2010, chemical...

    I'm newby but here it goes
    -After 2010, chemical manufacturers may still produce R-22 to service existing equipment, but not for use in new equipment
    -January 1, 2020: Use of existing refrigerant,...
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    New Construction & Lots of Questoins

    I am new to the board and found it while doing research for a new home we are building. Our contractor has 3 options for us on HVAC and they vary wildly. The house will be two floors, main and...
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