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Thread: Is there a different arch for a drop flue vs raised?

  1. #1
    Join Date
    Feb 2006
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    106

    Default Is there a different arch for a drop flue vs raised?

    I was looking at my homeade arch today (oil tank) where I boil on. And noticed alot of heat fatigue, I realize it is going to be replaced at somepoint. I currently boil with a 2x3 drop flue pan and a 2x5 flat section syrup pan. Question if I bought a brand new CDL of Lapierre arch for these pans to go on (2x8). Is there a different arch for the drop flue than raided flue?? I will be buying a new set of pans at somepoint that will be raised.

  2. #2
    Join Date
    Dec 2002
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    Loudon NH
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    The ramp that tapers up at the back of the firebox only goes to the bottom of the flues on a drop flue and goes up to the arch rails on a raised flue.
    Russ

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  3. #3
    Join Date
    Feb 2006
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    Default

    that doesn't sound good for me then, I'd need to buy a drop flue arch in order to use my pans, or would it be possible to put reverse the pans on the arch, ie flue on the front??

  4. #4
    Join Date
    Sep 2003
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    Whately, Ma.
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    You don't want to reverse your pans. Especially with adrop flue. Chances are you will damage the flues when throughing in wood. So keep your syrup pan over the fire box. The ramps that are in for a raised flue can be cut out and then put back in for new raised flue pans
    Keith

  5. #5
    Join Date
    Apr 2007
    Location
    Starksboro, Vermont
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    I have switched a drop flue arch over to a raised flue and it is very easy. All I did was got some 1/4" steel to fill in were the drop flues were and then put 2" blanket over it. If I ever wanted to change back to a drop flue I can remove the steel.
    Matt

    2x6 Phaneuf raised flue pans
    homemade oil burning arch & hood
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  6. #6
    Join Date
    Jan 2009
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    Altmar, NY
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    I agree with grade a. You can build the ramp up on a drop flue arch to accomadate a raised flue pan. But why do you want to switch to a raised flue when you already have pans? I for one do not see any advantage between a raised and drop. All the new drops have a drain and a raised has 2 float boxes to worry about insead of one. Curious what your reason is?
    2X6 deluxe Phanuef
    Adding 200 more every year
    27 years left of building a Hobby into a retirement time burner.

  7. #7
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    Oct 2009
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    Eden Mills,VT
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    Default

    I was just curious why your flue pan is smaller than your syrup pan

  8. #8
    Join Date
    Feb 2006
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    106

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    Its a homeade rig, its basically what was available at the time. I had the 2x5 flat 5 sectioned pan made about 4 years ago, then my evap just wasn't capable of handling all the sapl, so I am across a 2x3 drop flue pan with float box, so I added onto the exisiting evap. now the arch is getting rotted and needs to be replaced. I was going to go with a raised next time, as because personally i think they get better gph

  9. #9
    Join Date
    Jan 2009
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    Altmar, NY
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    If there is no difference is amount of surface area in a raised flue versus a drop flue where does the extra gph come from? Now if you want the best of both worlds get ahold of a max pan. Raised and droped in one. 11 inch flues in that one. I went with a drop because of one float box and I did not need to raise my holding tank to the roof to feed it. It is all a preference but the only difference I can see between the 2 is the number of float boxes. The only advantage that I know of is that with the raised is if you want to run your syup pan shallower you can with the float box.
    2X6 deluxe Phanuef
    Adding 200 more every year
    27 years left of building a Hobby into a retirement time burner.

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