The goal of Bad Apple Automation, LLC is to produce products at a resonable price that allows our customers to experiment with pellet burning.
Our products are not for everyone. You are required to have knowledge of, or know someone who has experience in electrical, fabrication, and engineering principles.
Our Products are for the true do it your selfer.
The goal of this document is to present our products to you, it is not a complete guide to building any pellet burning device. The purchaser must be knowledgable, and capable of designing and building the systems required for safe operation.
Pellet burning devices utilize several processes; a Fuel Feed System, a Burn Chamber, a Combustion Air/Exhuast Gas System, an Ash Removal System, and a Heat Exchanger. Additional systems are added for safety, such as a high limit switch to shut down the fuel feed system. The purchaser is responsible to ensure that proper safety devices are employed in the final design.
Bad Apple Automation, LLC makes products that simplify your design and build process.
A Fuel Feed System includes a Hopper, an Auger, and feed Control of the auger. The Fuel Feed System is accomplished utilizing Bad Apple Automation LLC'c CT-1000 Cycle Timer, AU-90 Auger Motor Assembly, and optional CH-90 Feed Chute.
The hopper is local storage at the burning device, it can be as simple as a 15 gallon barrel. These barrels often can be found surplus , or you can build your own to fit your exact needs. You size the hopper mainly for how often you want to re-load the local storage. However, having too much local storage can be a problem, as the added weight puts more strain on the feed auger, requiring more horsepower, ie. energy, and cost.
|Choose the size of your Local Storage to meet your needs. Pellets have approximately 8,000 BTU's per pound. They come in 40 pound bags, which is approximately one cubic foot.
As an example, 3 bags of storage, at approximately 8,000BTU's/lbs, that's 960,000 BTU's (almost a million BTU's) of local storage before a refill is needed.
Now compare that to the amount of heat required, say 30,000 BTU's per hour, that implies 32 hours of burn time before a refill is needed.
|When using a simple barrel, pail, etc, as a feed hooper, the pellets will create a natural cone of unusable material. You need to consider this when sizing your hopper. The cost of the pellets that form this natural cone are cheap compared to the labor and material to build a more complicated hopper. But the choice is yours.|
|Shown here is the CT-1000 Cycle timer installed (enclosure not included). Please note the CT-1000 is meant for indoor use only. If used in an outdoor application, such as a smoker, an additional enclosure is required and not supplied. It is the purchasers responsibility for proper installation based on your requirements.
Notice the use of the cord on the CT-1000 allows for easy connection.
By making the CT-1000 easily removeable, you can heat your house all winter, then use it on your Smoker all summer. Just a way to keep your cost down and allow you to experiment with wood pellet burning.
|Mounting the AU90 feed Auger to the hopper is simple.
Decide where the AU90 should be located and mark the hopper
Using the hopper flange layout specified in the product page for the AU90, locate and drill the mounting holes.
Notice the AU90 is mounted off center , this is to provide clearance between the hopper and burning device. You want to keep your fuel cool, a heat shield may be required, and is discussed later.
|Locate your electrical junction box used to connect your power cord to the AU90.|
|Mount the AU90 and make the electrical connections. You may want to add a switch to shut off the AU90, either here or somewhere else in your system.
There are times when it is nice to be able to cut the fuel supply, but leave the rest of the system functional, such as, when cleaning or shut down of the system.
You may need to add a protective shield for the motor fan to prevent injury.
Notice the plug cord connection to easily attach and detach from the CT-1000 Universal Auger Feed Cycle Timer.
| Here the CT-1000 Cycle Timer, the AU-90 Auger/Feed Assembly, and the CH-90-14 Feed Chute are shown togeather. All you need to do is build your own smoker or pellet burning device.
The CH-90 Feed Chute shown, would actually be inside your pellet burning device. This picture illistrates that the AU-90 and CH-90 bolt togeather to ease assembly.
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