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Thread: Steam Hood Fit

  1. #1
    Join Date
    Mar 2011
    Location
    Brookfield, Nova Scotia
    Posts
    250

    Default Steam Hood Fit

    Almost done building my hood. I was wondering how tightly the steam hood should fit on the evaporator pan? When the hood rests on the pan, the 4 corners hit but I still have a small gap along the sides and ends. Probably around 1/4" maximum. Will this hurt the performance of the pre-heater? Would a high heat rubber gasket be a good idea?
    2'x4' Smoky Lake Hybrid Pan
    Copper parallel flow preheater & hood
    17'x12' Sugar Shack
    130 taps
    Two chocolate labs to help collect sap
    Brookfield, Nova Scotia

  2. #2
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    11,565

    Default

    No gasket needed. 1/4" is a little more than usual, but it will still do fine. In your steam stack, have a damper. To regulate the steam flow, start closing the damper just until some steam starts to escape thru the gap, then open it very slightly. As the boil rate varies you might need some tweaking on the adjustment. Hoods do not fit tight, they just set on top. Most have gaps but they are generally a little less than 1/4", but that will not be cause for anything radical.
    Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
    Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
    Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
    After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.

  3. #3
    Join Date
    Mar 2011
    Location
    Brookfield, Nova Scotia
    Posts
    250

    Default

    That's good to know. One less thing to get done before the sap.

    Thanks.
    2'x4' Smoky Lake Hybrid Pan
    Copper parallel flow preheater & hood
    17'x12' Sugar Shack
    130 taps
    Two chocolate labs to help collect sap
    Brookfield, Nova Scotia

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