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automatic hopper feeding

Post in 'The Pellet Mill - Pellet and Multifuel Stoves' started by iceguy4, Jan 31, 2013.

  1. iceguy4

    iceguy4 Minister of Fire

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  2. Pelleting In NJ

    Pelleting In NJ Feeling the Heat

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    Put a photocell on one side of the stoves hopper, and an illumination light on the opposite side. Have the photo cell trigger a "one-shot" timing module. The timer is set to how long it takes to re-fill the hopper, to the top, that the added auger requires. The timer output applies power to the added auger motor. The biggest problem with this set-up is the sensitivity of the photocell to pellet dust on its lens. If it gets too dusty, the new auger will not run when its supposed to, and the stove will run out of pellets. That's at least a fail-safe scenario, better than the stove hopper being overfed pellets.

    Another idea is to replace the photocell with a spring-loaded "sail" or paddle switch, so when the stove hopper level drops above the sail switch, the spring pulls the sail back up, closing a switch, which triggers the timer module. When the stove hopper is filling with pellets, the sail switch will be pushed back down.

    I was thinking of doing this, but to activate an audible alarm, to warn when the hopper needs to be refilled, before the stove goes-out. I wonder why no stove manufacturer has not put this type of feature into their stoves?????
  3. glenc0322

    glenc0322 Minister of Fire

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    can you run your pellet boilers with the lid to the hopper open? I was thinking the photocell option too.
  4. iceguy4

    iceguy4 Minister of Fire

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    [QUOTEcan you run your pellet boilers with the lid to the hopper open][/QUOTE]

    not on my boiler... does anyone know how the harman system(1500lb hopper) work
  5. glenc0322

    glenc0322 Minister of Fire

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    So then how are you planning on attaching the auger to the stove
  6. iceguy4

    iceguy4 Minister of Fire

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    It will go through the side...see picture

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  7. PassionForFire&Water

    PassionForFire&Water Minister of Fire

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    I would recommend a capacitive proximity switch (not resistive: this does not work with wood pellets) and a timer relay that you can dial in the time of filling the pellets.
  8. glenc0322

    glenc0322 Minister of Fire

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    Thats a great Idea. You can also add another motor to fill the fill hopper and so on and so on and so on lol. Can you get bulk deliveries on pellets or do you need to purchase by the bag.
  9. Centurion

    Centurion Member

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    I wonder how Harman's accessory hopper/auger system maintains negative pressure. Seems like alot of connections involved that would be hard to seal and maintain that seal over many years of use. I'm sure they do....just curious. Maybe someone that has this system can pipe in with some info.
  10. iceguy4

    iceguy4 Minister of Fire

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    I have broken down and ordered the complete system. It will arrive around 2/27. I'll keep you apprized...
    smoke show likes this.
  11. Centurion

    Centurion Member

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    Excellent Ice, looking forward to your comments. Are you ordering the Harman bin as well?
    iceguy4 likes this.
  12. iceguy4

    iceguy4 Minister of Fire

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    yes...the whole enchilada...

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