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Thread: Upgrade to M35A2 personal heater

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    Sergeant Br0nc0xrapt0r's Avatar
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    Default Upgrade to M35A2 personal heater

    The Deuce I am getting has a hard top and a heater, however from what I read the heater in these trucks leaves a lot to be desired and I live in MI where it gets a little nippy in the winter. my Idea was to run the fresh air inlet to the heater into the cab so instead of heating cold outside air it heats the air from the cab that is warmer. I seached and couldn't find much besides the guys switching to 151 heaters.

    Any input on this?
    1969 Early Bronco, 95 cobra 5.0 NP435 Dana 20 Full width 9 rear 31 spl detroit 4.86 2004 SD dana 60 front welded 4.88 3link front coils 14" bilstiens and a loose nut behind the wheel.

    1971 M35A2 D turbo Air shift Tcase WO/winch

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    4 Star General rosco's Avatar
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    Re-circulating interior air works. Although I prefer to use fuel burning heaters, years ago, I put a re-circulating loop on my M37DSCN1909.jpg Recently, on a trailer recovery to Fairbanks for an M 989, with my Deuce, there were stretches of -20F. I ran the heater on LOW, all the way. So, if you think its chilly there, find a fuel burning heater - you will probably have to drive around with the windows half down.

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    4 Star General steelandcanvas's Avatar
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    I've read threads like this before and have never had any issues with my heater as installed from the factory. Occasionally the heater hoses are not installed in the right location on the engine causing the heater not to work to it's full capabilities. There is a PS article written describing the correct/incorrect connections, I can't seem to find it...maybe someone will chime in with it. Gringletaube??
    Jonathan
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    No matter how good or bad you think life is, wake up each day & be thankful to GOD. Somewhere, someone else is fighting to survive...

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    4 Star General Steel Soldiers Vendor Evil Dr. Porkchop's Avatar
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    m151a2, m1028s, m59 dump truck, m416, m101a2, m101a3, m104

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    4 Star General Steel Soldiers Vendor Evil Dr. Porkchop's Avatar
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    I helped install a stock heater in a deuce cab. Put it under the map compartment and used the diverter box from a five ton (reversed compared to a deuce one). Works very well.
    m151a2, m1028s, m59 dump truck, m416, m101a2, m101a3, m104

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    4 Star General steelandcanvas's Avatar
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    Thanks EDP, that's the one. I would think a hose rearrangement would be a little easier than moving the heater inside, providing the hoses were not initially installed correctly.
    Jonathan
    Amateur Call Sign: KE0JRH
    US Army '74-'79


    No matter how good or bad you think life is, wake up each day & be thankful to GOD. Somewhere, someone else is fighting to survive...

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    Sergeant Br0nc0xrapt0r's Avatar
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    Quote Originally Posted by steelandcanvas View Post
    I've read threads like this before and have never had any issues with my heater as installed from the factory. Occasionally the heater hoses are not installed in the right location on the engine causing the heater not to work to it's full capabilities. There is a PS article written describing the correct/incorrect connections, I can't seem to find it...maybe someone will chime in with it. Gringletaube??
    I see eastern CO so i know it gets purdy cold there. In 0*F weather and an artic grill cover this thing can keep the windshield clear and you warm?
    1969 Early Bronco, 95 cobra 5.0 NP435 Dana 20 Full width 9 rear 31 spl detroit 4.86 2004 SD dana 60 front welded 4.88 3link front coils 14" bilstiens and a loose nut behind the wheel.

    1971 M35A2 D turbo Air shift Tcase WO/winch

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    4 Star General Bill W's Avatar
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    This is where you plumb the supply and return for the heater hoses ( painted red )
    100_2556.jpg

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    Sergeant Br0nc0xrapt0r's Avatar
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    Quote Originally Posted by Bill W View Post
    This is where you plumb the 2 outlets for the heater hoses ( painted red )
    100_2556.jpg
    Is that where you eat your dinner too? because that is CLEAN! Thanks guys for the pic and the PS article.
    1969 Early Bronco, 95 cobra 5.0 NP435 Dana 20 Full width 9 rear 31 spl detroit 4.86 2004 SD dana 60 front welded 4.88 3link front coils 14" bilstiens and a loose nut behind the wheel.

    1971 M35A2 D turbo Air shift Tcase WO/winch

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    4 Star General steelandcanvas's Avatar
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    Quote Originally Posted by Br0nc0xrapt0r View Post
    I see eastern CO so i know it gets purdy cold there. In 0*F weather and an artic grill cover this thing can keep the windshield clear and you warm?
    Yessir! I do have the Arctic Grill Cover installed and mine does keep the windshield clear and the cab "comfortable". But before moving your heater inside the cab, check to be sure your hoses are installed correctly, check that out and go from there.
    Jonathan
    Amateur Call Sign: KE0JRH
    US Army '74-'79


    No matter how good or bad you think life is, wake up each day & be thankful to GOD. Somewhere, someone else is fighting to survive...

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