Open Source Pellet Stove
Contents
Basics
- Part of the Open Source Fuels Construction Set
- A solid biomass burning stove that uses a pelletized solid biomass instead of loose solid biomass
- This gives it great consistincy in fuel, and therefore heat consistency
- The fuel feed auger moves pellets from the storage area into the hearth
- The speed of the motor to the auger controlls the heat to an extent
- This also allows for temperature probe feedback
Industry Standards
- $1600 with controller - [1]
- $700 - No electricity, no auger. [2]
- 1057 Euro - [3]
- $2800 - [4]
- 830 Euro with auger but 230/50 hz - [5]
Existing Open Source Designs
-
Minimum Viable Product
- Works with the Open Source Biomass Pelitizer
- Burns wood, or other biomass such as agricultural waste
- Can be computer controlled, or use manual auger speed inputs
- Possibly an integrated fan system to increase temperature
- Collects ash for later production of lye/potasium hydroxide
Basic Design
Fuel Storage Module
- 1x or more per stove
- stores the pellets
- can have optional sealing + humiudity control
Fuel Auger Module
- 1x or more per stove
- moves the pellets from thw storage module to the hearth/fuel preheater
Fuel Preheater
- 0x or 1x per Fuel Auger Module
- Preheats + Dries out the pellets using waste heat from the hearth
Hearth Module
- 1x per stove
- A 3D printed ceramic hearth
- Is a diivergent funnel near the top to allow collection of pellets
- Towards the middle it converges to a thin opening to restrict pellets untill they are reduced to ash
Restriction Plate Module
- 1x per stove
- Is either a solid fixed plate, a screen, or a solid shaker plate
- Restricts flow out of the hearth and encourages complete usage of the fuel
Temporary Ash Storage Module
- Is a small bin that stores ashes immediately after coming off of the restriction plate module
- Containes them before they are removed by the ash auger
Heat Shroud Module
- Is a larger ceramic shroud that goes around the "fuel preheater-hearth-restriction plate-temporary ash storage" assembly
- keeps the heat contained (outside of the intentional exit point(s) )
Ash Auger Module
- Moves the ashes from the small tempory ash storage module to a much larger bin
- prevents clogging of the hearth
- allows for ash collection for lye/potasium hydroxide production
Long Term Ash Storage Bin
- Is a large bin or barrel
- collects the ashes over a long period of use
Control Module
- Is a combination of a system on a chip, a server controller, and temperature probes
- Allows for automatic running of the stove
- Also allows for precise temperature control
IO Module
- Includes a screen (such as a manga screen), and HIDs, wireless connections (such as zigbee, bluetooth, wifi, and 4g), and various ports (such as GBE, USB-C)
Heat Distibution Module
- Situated above everything else
- Takes the heat produced and either outputs it to a stovetop for cooking, an air heater, or a water heater (either for central water heating of for hydronic heating such as with the Open Source Hydronic Stove )
See Also
