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  1. #14
    Join Date
    Oct 2012
    Posts
    26
    Quote Originally Posted by vangoghsear View Post
    Your best justification is probably just the fact that the more efficient model is the more environmentally favorable choice.

    Also look into incentives for choosing the higher efficiency model, not sure if there are any right now. It varies by location, sometimes your utility company may even offer something.
    The one I went with, the 2nd, higher efficiency, option is affordable and can be compared to option 1 simply because of a massive rebate from the manufacturer. Our state is also offering a rebate things balance out.

    I like the environmental angle too.

  2. #15
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    5,994
    Quote Originally Posted by jcnycarch View Post
    I have 2 options:

    option 1: SEER 15, EER 12.5, HSPF 8.5

    option 2: SEER 16.2, EER 13.5, HSPF 9.0

    is there anyway to translate the efficiency into dollars? does anyone have a ballpark figure?

    thank you!
    $16 cooling
    $72 heating for this example.
    Input of city, i.e. Baltimore ... program selects the Cooling and Heating Degree Days (HDD).

    One must be responsible for determining program inputs,
    whether it be their knowledge of utility rates or determining Old & New equipment ratings.
    One always has the option of asking here, i.e. jcnyarch
    Heating equipment size deserves thoughtful consideration.

    If electric rate is $0.12 /kW versus $0.10/kw used in the example, add 20%.

    One can use HVAC OP COST calculator for their situation to estimate $$$ in < 3 minutes. (Attachment)
    AND one should NOT get into a lengthy a evaluation period on accuracy.
    Obviously, the yearly variations in weather (CDD & HDDs) may have more to do with cost difference
    than some of the equipment parameters.

    Whoever ( US Air Conditioning Distributors) wrote HVAC OP COST program
    provides a valuable, Quick service for reasonable decision making
    IF ones uses the program properly. ( ... Disclaimer).
    Attached Images Attached Images
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  3. #16
    Join Date
    Oct 2012
    Posts
    26
    Quote Originally Posted by dan sw fl View Post
    $16 cooling
    $72 heating for this example.
    Input of city, i.e. Baltimore ... program selects the Cooling and Heating Degree Days (HDD).

    One must be responsible for determining program inputs,
    whether it be their knowledge of utility rates or determining Old & New equipment ratings.
    One always has the option of asking here, i.e. jcnyarch
    Heating equipment size deserves thoughtful consideration.

    If electric rate is $0.12 /kW versus $0.10/kw used in the example, add 20%.

    One can use HVAC OP COST calculator for their situation to estimate $$$ in < 3 minutes. (Attachment)
    AND one should NOT get into a lengthy a evaluation period on accuracy.
    Obviously, the yearly variations in weather (CDD & HDDs) may have more to do with cost difference
    than some of the equipment parameters.

    Whoever ( US Air Conditioning Distributors) wrote HVAC OP COST program
    provides a valuable, Quick service for reasonable decision making
    IF ones uses the program properly. ( ... Disclaimer).
    This is very helpful! I was wondering if there was a website like this. Baltimore is very close as I'm in N. VA.

    Thank you!

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