block heater

Discussion in 'Trucks [ Eighteen Wheelers ]' started by kalh7, Jan 4, 2011.

  1. kalh7

    kalh7 Light Load Member

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    Mar 28, 2007
    southern illinois
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    was hoping somebody might know the answer as i see so many different answers. does anyone know how many amps a block heater for a c15 pulls? trying to find a timer that i could use for it so i dont have to keep it turned on all night. TIA
     
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  3. haystack

    haystack Light Load Member

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    Feb 12, 2009
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    What I can figure from my meter readings, the block heater on my c15 only draws about a dollar to dollar fifty for 12 hours. Its worth it to me for it to be warm all night long. I know that didnt answer the question, just info.
     
  4. Kansas

    Kansas Road Train Member

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    aircap, Ks.
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    I went through the "Christmas Light" style of timers, and they'd get a little too warm for my liking. So I jumped up to a Intermatic Timer rated at 40 amps (if I remember correctly). The timer lives in a nice weather proof box that's been mounted to the side of my garage. Purchased mine at a swimming pool supply house.

    I did a quick google and found an Intermatic T101 24 Hour Dial Timer. Looks nearly identical to the one I have.
     
  5. black_dog106

    black_dog106 Road Train Member

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    Mar 29, 2009
    MA
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    Hello Kalh7: if you know the rating of your block heater, the rest is easy.
    Seems like most heaters for 15L range motors is 1500 watts.
    1500 divided by 120 (volts) is 12.5 amps
    120/1500=12.5
    Whatever the watts is divide by the volts will give you the amperes...:yes2557:
     
    Last edited: Jan 4, 2011
  6. highside

    highside Medium Load Member

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    Feb 6, 2010
    Kansas
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    Most pull about 1200 - 1500 watts. That equates to about 10 - 13 amps
     
  7. Prairie Boy

    Prairie Boy Road Train Member

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    Edmonton, AB
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    I would say that it operates at 2,000 watts on 120Volts based on the area where I live. (Canada)

    2000 divided by 120 = 16.666 Amps is the draw.
     
  8. Krooser

    Krooser Road Train Member

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    I use an outdoor outlet on a 15 amp circuit when I'm plugged in... that same circuit also runs my 35" CRT television and all my living room lights.... never blows the breaker.
     
  9. DL550CAT

    DL550CAT Road Train Member

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    Waynesburg, Pa
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    Since you brought it up it will tonight.
     
  10. Krooser

    Krooser Road Train Member

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    Wisconsin
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    It did a few weeks ago... my mother-in-law lives upstairs during the summer and is a snow bird in the winter. She was home for Christmas... in my living room... and cold. My wife plugged in a 3500W heater and pointed it at her...poof!
     
  11. little cat 500

    little cat 500 Road Train Member

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    Jan 17, 2010
    Abbottstown PA
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    mother -in-law went poof i need a heater like that lol
     
    HoneyBadger67, t bird, W900KW and 3 others Thank this.
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