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Thread: AUF/AOF for barrel stove evaporator

  1. #11
    Join Date
    Oct 2014
    Location
    Middleburgh NY
    Posts
    22

    Default

    Having trouble uploading these to the galleries, but anyway. This is my homemade AOF/AUF. 2x2 steel and 1/2" tubing feed the top and 2" pipe feeds the bottom via an old furnace fan. Haven't tested it yet.

    evaporator.jpgevaporator1.jpgevaporator2.jpg
    2014 6 Taps Block Arch and momas canning pot, 3 gallons YIKES
    2015 12 Taps 55 gallon drum arch 2 steam pans, 6 gallons
    2016 18 Taps 55 gallon drum arch 2 steam pans, 9 gallons
    2017 80 Taps Smoky Lake 2x33 divided flat pan and a 2x3 back pan on converted 275 gallon oil barrel with AUF.
    2018 90 Taps Smoky Lake 2x33 divided flat pan and a 2x3 back pan on converted 275 gallon oil barrel with AUF/AOF.

  2. #12
    Join Date
    Jan 2006
    Location
    Sugarhill NH
    Posts
    697

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    With a blower that size had better chain that arch down so it does not fly away:-)
    30x8 Leader revolution, wood fired blower, steamaway/hood. 903 taps all but 54 on pipeline and 3 vacuum systems. Hauling sap this year with a 99 F350 7.3 diesel dump and of course back up is the Honda 450 and trailer.

  3. #13
    Join Date
    Oct 2014
    Location
    Middleburgh NY
    Posts
    22

    Default

    Ha Ha! I thought so too. I actually had holes drilled in the back of the wood box and found out I had to completely close in the box. The air out is not too bad. Still have not yet put a fire in it yet.
    2014 6 Taps Block Arch and momas canning pot, 3 gallons YIKES
    2015 12 Taps 55 gallon drum arch 2 steam pans, 6 gallons
    2016 18 Taps 55 gallon drum arch 2 steam pans, 9 gallons
    2017 80 Taps Smoky Lake 2x33 divided flat pan and a 2x3 back pan on converted 275 gallon oil barrel with AUF.
    2018 90 Taps Smoky Lake 2x33 divided flat pan and a 2x3 back pan on converted 275 gallon oil barrel with AUF/AOF.

  4. #14
    Join Date
    Mar 2006
    Location
    Eden Prairie, MN
    Posts
    1,434

    Default

    red/one:

    That blower will work ok for AUF and with the relatively small duct will not overpower the fire. In fact, you may not get as much air under the grate as you hope. Try it and see.

    But it is the wrong kind of blower for AOF. For that you want a high pressure blower which has a totally different type of vanes, capable of generating at least 4" h20 pressure. That blower is a high volume/ low pressure blower, maybe 1" of h20. If that is what you have there, you will get slow jets of air that will only cool the bottom of your pans and will increase the overall velocity of the combustion gasses so that what heat you do have does not stay under your pans as long.

    To confirm this, put a tube manometer on one of the AOF nozzles and see what kind of pressure you get.
    John
    2x8 Smokylake drop flue with AOF/ AUF
    170 taps on sacks
    50 on 3/16 tubing with shurflo
    Eden Prairie, Minnesota

  5. #15
    Join Date
    Oct 2014
    Location
    Middleburgh NY
    Posts
    22

    Default

    Ok sounds like alot of work for nothing but the blower was FREE so I am trying it. I dont know what a mano whatever is. All I know is the top tubes do not really push alot of air and I would rather not cool the pans... I know I need HPLCFM for the top and LPHCFM for the bottom but this is what I've got besides a little 1/50hp 3340RPM blower that I used for AUF last year. I'm trying to get more than 9gph out of this evaporator. Thats what I got last year. Should I try the little blower I have for the AOF? Not much time left...
    Thanks
    2014 6 Taps Block Arch and momas canning pot, 3 gallons YIKES
    2015 12 Taps 55 gallon drum arch 2 steam pans, 6 gallons
    2016 18 Taps 55 gallon drum arch 2 steam pans, 9 gallons
    2017 80 Taps Smoky Lake 2x33 divided flat pan and a 2x3 back pan on converted 275 gallon oil barrel with AUF.
    2018 90 Taps Smoky Lake 2x33 divided flat pan and a 2x3 back pan on converted 275 gallon oil barrel with AUF/AOF.

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