Page 3 of 4 FirstFirst 1234 LastLast
Results 27 to 39 of 45
  1. #27
    Join Date
    Feb 2003
    Location
    Huntsville,AL
    Posts
    4,125
    slab | crawl | bsmt?
    insulated at perimeter of slab | on outside of walls of crawl or bsmt?

    were ducts sealed with mastic?
    are elec boxes sealed to wall?
    were penetrations into hse & attic sealed?
    storm windows? [ they help protect expensive windows]
    doors insulated & weatherstripped?
    outside walls insulated?
    hse wrapped against infiltration?
    large gaps between framing & [window or door frames] ?

    what are your DegreeDays?
    compute kwh/DD/cu ft conditioned space --
    [ just to know this usage -- U have other problems, now -- ]
    harvest rainwater,make SHADE,R75/50/30= roof/wall/floor, use HVAC mastic,caulk all wall seams!

  2. #28
    Join Date
    Jun 2003
    Location
    Florida
    Posts
    9,548
    If it uses 4 kw/hr, if it was on 24/7 for 30 days that's around 2800 kwh. My guess(only a guess 'cause I can't see it) is that it's wired to come on whenever the heatpump does, 'cause you were able to shut them off proving they're not grounded. Try a different service company or an electrician.

    Does your heatpump shut off and turn on(cycle?) when it's real cold....under 30 degrees?
    If everything was always done "by the book"....the book would never change.

  3. #29
    Join Date
    Apr 2005
    Posts
    53
    Sounds like something is not wired correctly/or set properly with your heat pump and your aux. heat is constantly running. Here in TN I live in an 1800 sf home, all electric, and use on the average 1600 KWH per month.

  4. #30
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,428
    Quote Originally Posted by K-Dubb View Post
    I then turned on the heat, and it ran it used 3-4 kwh for that hour. Does this sound normal?
    LOW! ... as in Only Partial run time.

    Sounds like a NEW mechanical contractor is Due.
    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

  5. #31
    Join Date
    Feb 2008
    Posts
    12
    Ok guys. Sorry if i do not know what half of you are talking about. Are you saying that the heat strips should not come on when the heat pump (outside unit correct?) is on?

    The house is under warranty, so the guy that came out and checked everything was the guy the same company that put it all in. He spent about an hour looking over the heating system and water heater. He thought at first that perhaps all of the heating strips were coming on when they should not, however he checked all the amps and they looked good.

    The house has a crawl space, and the crawl space does not look to be insulated under the floor.

    Also, i am located in Christian county.

    So far on this billing cycle, i have used 1399 kwhr. This is for 17 days. So i am on a better path from last time, but it is still to high if you average it across. It still seems to be related to the heat to me, as for the last 3 days, i have only been using about 40 kwhr a day (these days include running the dryer and being home as it was the weekend), and it has been in the 50s-60s so the heat has not kicked on much.

  6. #32
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,770
    The strips should only come on when teh HP can't handle the load by itself.
    Or if you raise the set point temp at the stat by more then 2*.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  7. #33
    Join Date
    Jun 2003
    Location
    Florida
    Posts
    9,548
    I don't know what your tech checked 'cause I wasn't there, but you might be well off to call a heat pump specialist in for a second opinion. If the control wiring isn't correct, it's going to cost you over the long haul. Remember, any company that's there on a "warrantied by them" call is there on their dime.....
    If everything was always done "by the book"....the book would never change.

  8. #34
    Join Date
    Oct 2003
    Location
    Valdosta Ga
    Posts
    847

    Hmm

    You cannot get 36,000btu's of heat from a 3 ton hetpump on a 20 degree day it's more like 18,000btu's

  9. #35
    Join Date
    Oct 2003
    Location
    Valdosta Ga
    Posts
    847

    Hmm

    Is there a spa or heated pool in the house?

  10. #36
    Join Date
    Oct 2003
    Location
    Valdosta Ga
    Posts
    847
    Ok if all the above does not work look at the indoor heatpump coils for blockage yes its a new house but the sander , painter carpnder might have not used a filter or one may not have been installed.

  11. #37
    Join Date
    Feb 2008
    Posts
    12
    No spa or heated pool.

    Something interesting though. A neighbor that lives a few houses down basically has the same floor plan and inside (hardwood, tile, etc). His house was built by the same builder as mine and is the same size. His electric bill last month was even higher than mine, and he lives alone (i have a room mate).

    He was going to call the builder this week just as i have been doing. He said he notices that his heat seems to be running a lot when it is cold, just like mine. I am not wondering if this is not an insulation issue? Neither of these houses are insulated underneath...could that cause this much heat loss? Or could the heat pump just be too small for the house (I do not see how because the outside unit is a Goodman and it is huge).

  12. #38
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,770
    The floor not being insulated is not helping you any.
    Is this a vented crawlspace.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  13. #39
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,428
    Quote Originally Posted by K-Dubb View Post

    His house was built by the same builder as mine and is the same size. His electric bill last month was even higher than mine, and he lives alone (i have a room mate).

    I am not wondering if this is not an insulation issue? Neither of these houses are insulated underneath ... could that cause this much heat loss?
    Yes !

    Did you read post #27 from cem-bsee?

    Simplified, ... Q = U * A * Dt
    R = ~ 2 for un-insulated crawl space floor
    U = 1/2 for un-insulated floor or ~ 8 X normal heat loss [ Q ]

    Q = ~ 1/2 * 1,000 square feet * ( 70- 30'F ) = 20,000 BTU
    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

Page 3 of 4 FirstFirst 1234 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event