28 Photos - Feb 26, 2010
Photo: Page 1 Rocket stove article published in PiNZ Autumn 2010 Members Newsletter produced quarterly for the members of Permaculture in New Zealand detailing the whole design and testing processPhoto: Page 2 Rocket stove article published in PiNZ Autumn 2010 Members Newsletter produced quarterly for the members of Permaculture in New Zealand detailing the whole design and testing processPhoto: Design: Initial MM and concrete block sketchesPhoto: Design: Further sketch development, block detailsPhoto: Design: Fire box, fire chamber, chimney relationshipPhoto: Design: sketches of known chimney heating systems. Thermette and turkish tea kettlePhoto: Model: Initial concept layout following sketch design. Side showing blocksPhoto: Model: Initial concept layout following sketch design. Front showing fire boxPhoto: Model: Initial concept layout following sketch design. Top showing chimney and site of fire chamberPhoto: Implementation: Block 2. Base block. Provides base of fire chamberPhoto: Implementation: Block 3. Fire chamber (open end concrete block)Photo: Implementation: Block 1 and 4. Fire box and first Chimney blockPhoto: Implementation: Block 4. Second chimney blockPhoto: Implementation: Fire box. Top fuel inlet, bottom air inlet. Fire box divider made from olive oil canPhoto: Testing: Open fire chamber ready for lighting, silver birch bark and small twigsPhoto: Testing: Fuel lit and Fire chamber close with fire box. Additional fuel fed into firePhoto: Testing: Chimney view showing fire chamber in actionPhoto: Testing: Roasting marshmallows while the fire heats upPhoto: Testing: Ready for real testingPhoto: Testing: The bean test - How long does it take to heat up a tin of beansPhoto: Testing: The bean test - Five minutes form tin to boilingPhoto: Testing: The thermette test - How long does it take to heat up 2L waterPhoto: Testing: The thermette test - 7 Mins from cold to boiling over!Photo: Testing: Thermette removed showing flames through chimneyPhoto: Testing: Real heat output - My thermometer maxis out at 300DegCPhoto: Modification: A modification to the original design - closing of the fuel inlet really gets the rocket going! Ideally the fuel sticks would fill the fuel inlet but they burn backwards into the fuel bay, pushed into far before the have fully combusted the burn at the firebox divider edge and the ends drop into the fire chamberPhoto: Modification: Its roaring in there!Photo: Review: Disassmebled stove: Block ? was an extra block I added to the chimney to check draft - It made no different. Notice how the heat of combustion in the fire chamber has burnt of all the soot. It is assumed that if the stove is working correctly there would be no soot in the chimney