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  1. #1
    Join Date
    Nov 2019
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    Furnace causing high power bill.

    So, my power bill is 300 dollars a month, without going into every minor detail, Iíve tracked it down to the furnace. And itís 300 dollars all year round so Iím thinking itís something that runs regardless of heating or cooling. I was thinking maybe the blower motor. It is currently 40 degrees and itís night. The temperature is set to 73 my furnace is on for 6 minutes, off for 10 and then back on for 6 minutes. Iíve tried turning my furnace down to 68 like my power company suggested, but weíre still using 60-80 kilowatts per day. (Alabamaís average is 30 per day) Iíve been thinking about buying a clamp meter, and testing every wire going in and out of the lower motor. I know this forum isnít a DIY forum, so Iím not asking for how to do it, just what do you think the odds are that the blower motor is going bad, which is causing the usage? Iíve lived here for almost 5 years and my power bill has been 300 dollars all along, so itís not something new.

    Thanks!!

    -Nick.



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  2. #2
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    40,510
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    Gas or electric furnace?

  3. #3
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    25,632
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    Try having an electrician open the panel and check each circuit!

  4. #4
    Join Date
    Jul 2010
    Location
    nebraska
    Posts
    2,809
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    A blower motor doesn't use that much power. Something else is wrong.

  5. #5
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    9,712
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    Quote Originally Posted by Nick. View Post
    So, my power bill is 300 dollars a month, without going into every minor detail,
    I’ve tracked it down to the furnace.

    And it’s 300 dollars all year round
    so I’m thinking it’s something that runs regardless of heating or cooling.

    I was thinking maybe the blower motor. It is currently 40 degrees and it’s night.
    The temperature is set to 73 my furnace is on for 6 minutes, off for 10 and then back on for 6 minutes.
    I’ve tried turning my furnace down to 68 like my power company suggested,
    but we’re still using 60 - 80 kilowatts per day.

    (Alabama’s average is 30 per day) I’ve been thinking about buying a clamp meter, and testing every wire going in and out of the blower motor.

    I know this forum isn’t a DIY forum, so I’m not asking for how to do it,
    just what do you think the odds are that the blower motor is going bad, which is causing the usage?

    I’ve lived here for almost 5 years and my power bill has been 300 dollars all along, so it’s not something new.

    Thanks!!

    -Nick.

    Sent from my iPhone using Tapatalk
    70 kw-hrs / DAY * 365 DAYS = 25,600 KW-HOURS … = ~ 2.7 x NATIONAL AVERAGE.

    March, April, early May, late October, November & early December should Not have
    High electrical power requirement in ALABAMA that are HVAC related.

    So you believe it is NOT part of the Heating & Cooling but, it is traced to the furnace.
    __ I am not following the logic.


    __ ENERGY AUDIT __

    Heat pump(s), electric, L.P. or Natural Gas furnace(s)?

    Charging a TELSA or other EV ?

    2,000 or 5,000 Square Foot Residence built in 2010 or _ _ _ _ ?

    ZIP _ _ _ _ _ < Needed for Design Temperatures, HDD & CDD

    Are you operating pool or spa pump(s) nearly 24 / 7?
    ... running 1 HP motor 8,760 hours = 6,500 KW-Hours / Year
    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

  6. #6
    Join Date
    Nov 2019
    Posts
    6
    Post Likes
    Thread Starter
    Quote Originally Posted by dan sw fl View Post
    70 kw-hrs / DAY * 365 DAYS = 25,600 KW-HOURS Ö = ~ 2.7 x NATIONAL AVERAGE.

    March, April, early May, late October, November & early December should Not have
    High electrical power requirement in ALABAMA that are HVAC related.

    So you believe it is NOT part of the Heating & Cooling but, it is traced to the furnace.
    __ I am not following the logic.


    __ ENERGY AUDIT __

    Heat pump(s), electric, L.P. or Natural Gas furnace(s)?

    Charging a TELSA or other EV ?

    2,000 or 5,000 Square Foot Residence built in 2010 or _ _ _ _ ?

    ZIP _ _ _ _ _ < Needed for Design Temperatures, HDD & CDD

    Are you operating pool or spa pump(s) nearly 24 / 7?
    ... running 1 HP motor 8,760 hours = 6,500 KW-Hours / Year
    When I say regardless of heating or cooling, I mean itís 300 dollars all the time, not just because itís heating or just because itís cooling. Whatever is wrong, isnít isolated to one or the other, itís both heating and cooling.

    Electric, no heat pump.

    Not charging any cars haha.

    2100 square feet, built in 2010 furnace is an 08

    Zip is 36051

    No pool or spa running.


    Sent from my iPhone using Tapatalk

  7. #7
    Join Date
    Nov 2019
    Posts
    6
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    Thread Starter
    Quote Originally Posted by BaldLoonie View Post
    Gas or electric furnace?
    Electric, sorry that was one piece of information I forgot to include. It is a mobile home as well, built in 2010, furnace is an 08


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  8. #8
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    25,632
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    Mobil home
    Electric heat

    Sounds like budget billing

  9. #9
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    9,712
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    Defining BUILDING THERMAL ENVELOPE per

    ALABAMA BUILDING CODE

    I Understand
    2006 IECC applies to a 2010 build
    https://www.energycodes.gov/sites/de.../2006_iecc.pdf

    Climate Zone 3

    R-13 Walls
    R-30 Ceiling
    R-19 Floor

    WINDOWS

    U-Factor 0.65
    S.H.G.C. 0.40

    ZIP 36051
    __ MIDWAY __ $ 0.1174 / KW-HR
    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

  10. #10
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    9,712
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    ASHRAE CLIMATIC DATA HDD 65 Annual 2,667

    JAN FEB MARCH APR MAY Jn Jy A SEPT OCT NOV DEC
    671 516 316 _ 118 27 _ 0 _ 0 _ 0 _ 3 125 380 511

    CDD 65 1,892 annual
    ______________ May Jun _ Jy Aug Sept
    _ 1 _ 2 _ 14 _ 51 187 392 448 453 271 _ 63 __ 6 _ 5

    Cooling Operating Hours would be ~ 1,500 per year
    _____________ 160 to __ 380 hours / month for 5 months
    ____________ May … ___ July & August
    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

  11. #11
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    9,712
    Post Likes
    Quote Originally Posted by Nick. View Post

    When I say regardless of heating or cooling,
    I mean it’s 300 dollars all the time,
    not just because it’s heating or just because it’s cooling.
    Whatever is wrong, isn’t isolated to one or the other, it’s both heating and cooling.

    Electric, no heat pump.

    Not charging any cars haha.

    2100 square feet, built in 2010 furnace is an 08

    Zip is 36051

    No pool or spa running.

    Sent from my iPhone using Tapatalk
    ACTUAL ELECTRIC USE / kw-hrs per Month is needed, not a Flat budget.

    Heat Pump would be about 70% less for heating than Straight Electric

    $ 300 / month

    Example:
    $ 120 / month Other ______ $ 120
    $ 180 / month HVAC * 0.3 = $ 54 with use of Heat Pump in Mid Alabama
    _______________________ $ 174.

    Manufacturer of Home __ ____ ?
    Model ______ ?
    My gmail address: racingdan11
    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

  12. #12
    Join Date
    Jan 2014
    Location
    New England
    Posts
    6,270
    Post Likes
    Electric dryer? Electric stove? also. How many refrigerators and freezers do you have. For a 2100 sq. ft. Residence and only running for 5-10 minutes before the Air Handler shuts down, You have a good size KW heater? adding to the bill.

  13. #13
    Join Date
    Nov 2019
    Posts
    6
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    Thread Starter
    Quote Originally Posted by Bazooka Joey View Post
    Electric dryer? Electric stove? also. How many refrigerators and freezers do you have. For a 2100 sq. ft. Residence and only running for 5-10 minutes before the Air Handler shuts down, You have a good size KW heater? adding to the bill.
    Everything is electric, one fridge no freezer. And the furnace, if I remember correctly is 51000 BTU and 14.5 kilowatts.


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