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APU/3000W PSW Inverter to Block Heater

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Roteck, Apr 17, 2018.

  1. Apr 17, 2018 #1
    Roteck

    Roteck Light Load Member

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    Dec 18, 2016
    Abilene, TX
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    I was just wondering if I could hook up an extension cord to my 3000W pure sine wave inverter to my block heater. I have a Tripac Evolution on the truck. It warms the engine itself but would it be beneficial to hook up the block heater to my inverter and let the APU warm the coolant as well as run the block heater?
     
    Roteck, Apr 17, 2018
    Roteck, Apr 17, 2018
    #1
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  3. Apr 19, 2018 #2
    I glide 47

    I glide 47 Road Train Member

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    Block heater uses 1500 watts good idea I have mine hooke up that way but I have a 6000 watt generator
     
    I glide 47, Apr 19, 2018
    I glide 47, Apr 19, 2018
    #2
  4. Apr 19, 2018 #3
    Roteck

    Roteck Light Load Member

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    Dec 18, 2016
    Abilene, TX
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    The inverter could definitely output it but I don't think my APU could keep up with that much draw. I can't run a microwave without the batteries dying and the APU not keeping up.
     
    Roteck, Apr 19, 2018
    Roteck, Apr 19, 2018
    #3
  5. Apr 24, 2018 #4
    KB3MMX

    KB3MMX Road Train Member

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    The TriPack doesn't have a big enough alternator to keep up with the 12V amp draw of the inverter using that much power constantly.....

    That's where a generator based APU would be better.

    You can also get a 12v diesel fired coolant heater from Eberspatcher or whatever they're called. That would be the best option for keeping that coolant hot overnight
     
    KB3MMX, Apr 24, 2018
    KB3MMX, Apr 24, 2018
    #4
    86scotty and Roteck Thank this.
  7. Feb 13, 2021 #5
    Kayoot

    Kayoot Bobtail Member

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    Feb 13, 2021
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    What engine block heater do you have? Do you have a stand alone APU? I'm trying to get a block heater for the truck engine since the stand alone does not heat the engine.
     
    Kayoot, Feb 13, 2021
    Kayoot, Feb 13, 2021
    #5
  8. Feb 14, 2021 #6
    flood

    flood Road Train Member

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    my question is this... your apu heats the coolant why do you want to use a block heater to do the same thing
     
    flood, Feb 14, 2021
    flood, Feb 14, 2021
    #6
    86scotty Thanks this.
  9. Feb 14, 2021 #7
    86scotty

    86scotty Road Train Member

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    Yep, Tripac flows it's own engine's coolant through the truck coolant loop, at least mine does. No block heater necessary.
     
    86scotty, Feb 14, 2021
    86scotty, Feb 14, 2021
    #7
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