Rocket stove

Building a rocket stove to heat up the house

One blogger took a super-efficient stove design that's been embraced in the developing world and applied it to heating up his living room. Read about how he did it here.

Fri, Oct 26 2012 at 2:04 PM

Photo: Yuichiro Haga/Flickr

I'm a huge fan of the rocket stove (I wrote about it earlier this year), a hyper-efficient design that excels at burning at very hot temperatures. Rocket stoves burn at much higher temperatures than your standard wood-stove or fireplace and, as a result, emit much cleaner exhaust. You can burn just about anything in a rocket stove too, from straw to dried dung to small bundles of twigs. This flexibility, combined with the stove's brutal efficiency, has made them a popular choice in the developing world, where they replace older conventional stoves that are smoky and inefficient. Smoky kitchens are no joke in many parts of the world and negatively impact the health of millions of people. Rocket stoves means people can breathe easier as they prepare food and have to work less to procure fuel.

I stumbled across this great article showing how one blogger installed a rocket stove heater to help heat his home. Rob the blogger is a woodworker who had an ever-growing pile of small scrap wood accumulating in his workshop. Instead of mulching the scraps or sending them off to a landfill, he wanted to extract as much energy as possible out of his pile and converted an old water tank to a rocket stove.

Swing over to I Will Try to read about his project and to see more photos.

If you have a few minutes, watch this delightful little video showing a rocket stove heater in action.

Via Reddit

Rodillo para imprimir diseños

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Stabilised Soil Blocks

Source

Small-Scale Manufacture of Stabilised Soil Blocks (WEP, ILO; 1987; 204 pages)
		PREFACE
		ACKNOWLEDGEMENTS
		CHAPTER I. INTRODUCTION
			I. PURPOSE AND OBJECTIVES OF THE MEMORANDUM
			II. NEED TO IMPROVE TECHNIQUES FOR PRODUCTION OF STABILISED SOIL BLOCKS
			III. COMPARISON BETWEEN STABILISED SOIL BLOCKS AND OTHER BUILDING MATERIALS
				III.1. Compressive strength
				III.2. Moisture movement
				III.3. Density and thermal properties
				III.4. Durability, maintenance and appearance
			IV. SCALES OF PRODUCTION COVERED BY THE MEMORANDUM
			V. CONTENT OF THE MEMORANDUM
			VI. TARGET AUDIENCE
		CHAPTER II. RAW MATERIALS, TESTING AND STABILISERS
			I. RAW MATERIALS
			II. QUARRYING THE RAW MATERIAL
			III. SOIL TESTING PROCEDURES
				III.1. Preliminary on-site tests
				III.2. Further soil testing procedures
				III.3. Laboratory testing methods
			IV. SOIL STABILISERS
				IV.1. Principles of soil stabilisation
				IV.2. Soil stabilisation methods
		CHAPTER III. PRE-PROCESSING OF RAW MATERIALS
			I. THE NEED FOR PRE-PROCESSING
			II. GRINDING
				II.1. Simple hand tools
				II.2. Pendulum crusher
				II.3. Other hand-powered methods
			III. SIEVING
			IV. PROPORTIONING
			V. MIXING
			VI. PRODUCTIVITY OF LABOUR AND EQUIPMENT
			VII. QUANTITY OF MATERIALS REQUIRED
		CHAPTER IV. FORMING
			I. BUILDING STANDARDS AND BLOCKS
			II. COMPRESSIVE STRENGTH: DENSITY AND MOULDING PRESSURE RELATIONSHIPS
			III. BLOCK FORMING METHODS
			IV. SOIL TESTING PRIOR TO PRODUCTION
			V. BLOCK SIZES
			VI. PROPOSED TECHNICAL STANDARDS FOR COMPRESSED SOIL BLOCKS
			VII. SOIL BLOCK MAKING MACHINES
				VII.1. The CINVA-Ram press
				VII.2. The CETA-Ram press
				VII.3. Landcrete press/Presse Terstaram
				VII.4. Tek-Block press
				VII.5. Winget block making machine
				VII.6. Ellson Blockmaster Stabilised Soil Block Press
				VII.7. Consolid AG
				VII.8. Supertor block making machine
				VII.9. Maquina block making machine
				VII.10. Brepak block making machine
				VII.11. Zora hydraulic block press
				VII.12. Latorex system
				VII.13. Astram block making machine
				VII.14. Tecmor equipment
				VII.15. Meili 60 manual soil block press
				VII.16. Terrablock Duplex Machine
			VIII. WORLD SURVEY OF SOIL BLOCK MAKING EQUIPMENT
		CHAPTER V. CURING AND TESTING
			I. INTRODUCTION
			II. THE NEED FOR CURING AND TESTING
			III. METHODS OF CURING
			IV. TESTING STABILISED SOIL BUILDING BLOCKS
				IV.1. Site testing procedures
				IV.2. Laboratory testing methods
				IV.3. Durability tests
				IV.4. Long-term exposure tests
				IV.5. Selection of an exposure site
		CHAPTER VI. MORTARS AND RENDERINGS
			I. NEED FOR MORTARS AND RENDERINGS
			II. MORTAR TYPES
			III. TYPES OF RENDERING
			IV. MIXING AND USE
		CHAPTER VII. COSTING
			I. VARIATIONS IN COSTS
			II. METHODOLOGICAL FRAMEWORK
			III. APPLICATION OF THE METHODOLOGICAL FRAMEWORK
		CHAPTER VIII. SOCIO-ECONOMIC CONSIDERATIONS
			I. INTRODUCTION
			II. ACCEPTANCE AND APPLICATION
			III. EMPLOYMENT GENERATION
			IV. INVESTMENT COSTS AND FOREIGN EXCHANGE SAVINGS
			V. PRODUCTION COST OF STABILISED SOIL BLOCKS AND BUILDING COSTS
			VI. CONCLUDING REMARKS
		APPENDICES
			APPENDIX I. GLOSSARY OF TECHNICAL TERMS
			APPENDIX II. INFORMATION SOURCES ON STABILISED SOIL BLOCKS
			APPENDIX III. LIST OF EQUIPMENT SUPPLIERS AND MANUFACTURES
			APPENDIX IV. BIBLIOGRAPHY
		QUESTIONNAIRE
		OTHER ILO PUBLICATIONS
		BACK COVER