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  1. #1
    Join Date
    Dec 2005
    Posts
    25
    Need to be set straight. I am on long island, ny where electricity costs a fortune. Building a new house. Is it correct that heat pumps use a lot less electricity than heat strips? My contractor friend seems to think that I should just go with heat strips because of all the additional wear i would be putting on the compressor year round instead of during the summer to run the heat pump. I would like any input......

    Thanks

    Philip

  2. #2
    Join Date
    May 2004
    Location
    Rapid City, SD
    Posts
    7,415
    Well, of course it'll wear out faster running year round vs just in the summer months. But, since it's designed to run it really isn't going to wear out much faster. It's almost impossible to say how long a piece of equipment will live, but even a heat pump should last 10-15 years or much more if it's installed and most importantly taken care of properly.

    Energy use is based off of electric heat, that being 100% efficient. A heat pump is generally 200-300% effcient, producing 2-3 watts of energy for every watt used.

    A heat pump is a no brainer, especially if you have high electric rates.

  3. #3
    Join Date
    Dec 2005
    Posts
    25
    Rheem and carrier seem to have very efficient models. Are their performance #'s inflated or in your experience are they pretty accurate. The goodman systems are far less expensive but it appears the rheem and carrier high end models would save a lot of money. Is it worth spending the extra dough for these?

  4. #4
    What is this contractor friend. By doing your homework now could keep your fuel cost low. just a thought, oil is not a dirty word is it.

  5. #5
    Join Date
    Dec 2005
    Posts
    25
    he is a homebuilder but obviously isnt an expert in this stuff like you guys are. We have always had all electric. I do not want oil in my house at all and there is no gas available here.

  6. #6
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,429

    Thumbs up Good Windows, Insulation & High Efficiency

    Originally posted by pooka16
    Long island, NY where electricity costs a fortune.
    New house

    Is it correct that heat pumps use a lot less electricity than heat strips? Philip
    What size house and type of windows that you will be using ?

    Rate$ > $0.18/ kW ?
    Select Heat Pump 9.0 HSPF/ 16 SEER or better.

    I believe that your
    time weighted C.O.P. may be close to 3
    with somewhat milder temperatures on Long Island.

    http://www.trane.com/Residential/Pro...mps/XL16i.aspx

    http://www.trane.com/Residential/Pro...ableSpeed.aspx

    AND seal the house to minimize infiltration ...
    + achieve < 0.2 A.C.H.

    http://www.airtightinsulation.com
    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

  7. #7
    Join Date
    Apr 2005
    Location
    NE PA
    Posts
    698
    A heat pump will give you on average 2 to 3 times the heat per KW of electricity as compared to strip heat.

    That is a substancial savings as compared to straight electric.

    paul

  8. #8
    Join Date
    Dec 2005
    Posts
    25
    The house is 2story 4800 sq ft without the basement which is another 2700sq ft. all windows are schuco triple pane with gas. We are getting spray foam insulation. we are paying $.11 per kw

  9. #9
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    Originally posted by pooka16
    The house is 2story 4800 sq ft without the basement which is another 2700sq ft. all windows are schuco triple pane with gas. We are getting spray foam insulation. we are paying $.11 per kw

    With great windows and insulation,insist on a Manual J load calulation,and Manual D duct design,for your comfort!!

    Insist!!,if needed youcan do it yourself at the red"hvac calc tab above!!


    Read more about them at http://www.acca.org

  10. #10
    Join Date
    Dec 2005
    Posts
    25
    The only difference i see between the xL16 and XL19 is that the XL19 has two compressors........is this worth the added expense? What is D duct?

  11. #11
    To size the heating equipment to the home, Manual J.

    To size the supply/return ducting to each room, Manual D.

    These are essential for a proper, efficient, trouble-free system!

  12. #12
    Join Date
    Dec 2005
    Posts
    25

    update...need help again

    USed the HVAC calc and coming up with 6 tons for the entire house..... 2 floors and the basement.

    I've decided on the heat pump based on everybodys recommendation but the next problem is brand/Seer...

    My friend is telling me to go goodman since parts are pretty inexpensive and easy to get. Supposely trane and carrier arent for the do it yourself person and they wont honor the warranty if a licensed installer doesnt do the work...... The highest seer on a goodman is 14 where as the trane/carrier is 19......is it worth the extra expense?? Any thoughts would be greatly appreciated!

    Thanks

    Philip

  13. #13
    Join Date
    Apr 2004
    Posts
    7,680
    If your going to do it yourself, use goodman

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