Home Built Electric with Pictures

Discussion in 'Other Builds' started by walleye1, Sep 28, 2008.

  1. I just thought I would post a few details and pictures of a recent build I did.

    I picked up this Proofer from a guy who was no longer using it. It had been sitting outside for a while so it had lots of oxidization on it, but it cleaned up fine using steel wool and a mixture of vinegar and water, then a little light sanding.


    I removed all the heating elements out of the bottom of it and removed the blower which was seized. The unit was too tall for where I want to locate it so I removed the top portion (about 5 or 6 inches) which housed the controls. It was a simple case of drilling out the rivets. I shortened this section and reinstalled it for the top. I have also removed the casters that were under it because I permanently installed this in my garage as well. When I removed the top controls I wasn't very impressed with the insulation in it. It was insulated with fibreglass insulation and very little of it. So, I removed the back, sides, bottom and door and re-insulated with mineral wool insulation which has a much higher temperature rating.

    The outside measurements are 25" W x 31" D x 66" H
    The inside measurements are 21.5" W x 28" D x 61" H
    The insulation in the sides, back, top and bottom are 1 1/2 inches of Roxul Mineral Wool and the door is the same insulation but it is 1 1/4 inches thick.

    Heating & Air Circulation
    I thought I would tackle these together. I used a high temp blower. It draws the air off the bottom of the smoker and returns the air blowing it across two 1100 watt finned strip heaters. The blower runs full time and the elements are controlled by a PID. The CFM of the blower is 130 and the maximum air intake temperature is 450 degrees. By using the blower and finned strip heaters I am able to consolidate it and limit the exposure to the heating elements from any grease and in turn reduce the risk of fire as this unit is installed in my heated garage.

    Smoke Generator
    I have a Bradley OBS smoke generator & Adapter that I used which works very well.

    Vent
    I made a 4 inch vent in the top of the unit, similar to the style of the one in the top of the DBS Bradley sitting next to it.


    Click on the Photos to enlarge them


    This is a picture of the starting point.



    This photo shows the unit laid down waiting for insulation and to be riveted back together.



    Here's a picture of the wiring diagram.



    This shows the wiring in the main control box. I used heat sinks under the SSRs and a 30 CFM blower for cooling.



    This shows the 130 CFM blower I used to circulate air over the 1100 watt finned strip heaters.



    This shows how I mounted the strip heaters and the air intake for the blower. I may add a deflector between the intake and the heaters. So far it works good as is so I will just monitor it.



    Close up of the control panel. I added indicator lights for each circuit so you can easily see if you have a power problem with either circuit.



    This picture shows how I connected both smokers to my rangehood vent which is vented out the wall of the garage. My Bradley is also controlled with a PID. I have also added a circulation fan to it and off set the smoke generator for cold smoking.


    Sausage waiting for smoke... I have since changed how I hang the sausage. In this picture they were a little too long, a couple of them pulled apart. I just wanted to see if I could do it that way. I had some linked and some just really long. In the future I will hang an upper row and a lower row to avoid them self destructing. They turned out great though!



    Mike
     
    blue hill likes this.
  2. slickrat

    slickrat Smoke Blower

    WOW! [​IMG]
     
  3. walking dude

    walking dude Smoking Guru SMF Premier Member

    nice REAL nice...........i was thinking to myself, WTF is a proffer, till i saw the pic...........we used one when i werked at pizza hut MANY MANY moons ago..........its where our pan pizza's rise at.............thats a very nice job dude.........POINTS! ! ! ! ! !
     
  4. daboys

    daboys Smoking Fanatic OTBS Member SMF Premier Member

    Very nice job Mike!! You definitely know what you are doing.
     
  5. okie joe

    okie joe Smoking Fanatic OTBS Member SMF Premier Member

    Nice job and good idea....work with what ya got...welcome to SMF.looking good mike
     
  6. bb53chevpro

    bb53chevpro Master of the Pit OTBS Member

    Great workmanship. Very impressive.
     
  7. salbaje gato

    salbaje gato Meat Mopper OTBS Member

    very nice and sanitary.
     
  8. salmonclubber

    salmonclubber Master of the Pit OTBS Member

    very nice some days i will own one of these
     
  9. Thanks guys

    My main purpose for this smoker was for smoking large batches of sausage. So far it works real well.

    Mike
     
  10. guvna

    guvna Smoking Fanatic

    my goodness mike... well done! you've been busy huh...
     
  11. mossymo

    mossymo Master of the Pit OTBS Member SMF Premier Member

    Very impressive, you have added more thoughts/items to my wish list !!!
     
  12. richoso1

    richoso1 Smoking Guru OTBS Member SMF Premier Member

    Wow, what a great job on that electric smoker. You are an experienced man enjoying his project, Congrats.
     
  13. mulepackin

    mulepackin Master of the Pit OTBS Member SMF Premier Member

    Excellant job. That is high quality workmanship. Where did you get your controls, fan, and heaters?
     
  14. The controls (PID, SSRs, Thermocoupler, Heat Sinks) came from Auber Instruments. Here is a link:
    http://auberins.com/index.php?main_page=index&cPath=1

    The hight temp blower came from Acklands Grainger here in Canada (Grainger in the USA). The finned strip heaters are also available from Grainger in the USA but unfortunately not in Canada. I had to order the heaters from Omega in Canada.

    Mike
     
  15. pantherfan83

    pantherfan83 Smoking Fanatic

    Great job!!! I want a big smoker like this so bad. I haven't been lucky enough to come across something to make one out of yet.
     
  16. cowgirl

    cowgirl Smoking Guru OTBS Member

    Excellent job Mike![​IMG]
     
  17. shellbellc

    shellbellc Master of the Pit OTBS Member

    WOW!!! That can be used for large batches of ANYTHING!
     
  18. scubadoo97

    scubadoo97 Smoking Fanatic

    That is the most impressive job I've ever seen for a homemade smoker. I'm thinking you might be an electrician. Certainly very skilled in many areas.
     
  19. slanted88

    slanted88 Smoking Fanatic SMF Premier Member

    Dang Dude, Gulf Power would love for you to be one of their customers. Nice Build!
     
  20. Thanks guys!

    Not an electrician though... Just like to play! [​IMG]

    Mike
     

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