Rocket Mass Heaters: Heat Your Home For Less Rocket mass heaters are an innovative cross between a rocket stove and a masonry heater. Using a tenth less fuel that a conventional woodburner, a rocket mass heater converts the burn of hot gases that rise from the fire into heat, as well as the heat from released steam and carbon dioxide. The rocket mass heater is an efficient and clean method of heating your home. How it Works Sticks placed vertically in the stoke hole burn from the bottom. Efficiency Rocket mass heaters use only about one tenth of the wood that a conventional wood burning stove would to achieve the same room temperature. Different Styles Cob style A cob style rocket mass heater is 'the old reliable'. Pebble style The difference with these is that the mass is usually a wood bench filled with pebbles and rocks. Shippable core This is the main system of the rocket stove as one piece of equipment, making it even easier for people to build their own. The ring of fire Further resources Watch: Rocket stove kitchen Horizon rocket stove
Polmedia Polish Pottery - Handcrafted Stoneware from Boleslawiec Poland. b Rocket Ovens Cob rocket ovens combine the efficiency of rocket stoves with the joy of cob ovens. They can be fired up in just 15 minutes (instead of an hour or more with a convention cob oven) with a small bunch of kindling and be ready to bake soon afterwards. You get the delicious taste of a cob oven but all the benefits of an energy efficient rocket stove as they require little fuel and are ready to cook very quickly. These stoves are ideal for smaller, faster baking sessions. Flip and Jon Anderson explain the potential and principles of cob/mud rocket ovens. This is a great evolution of the rocket stove concept and now you can use these principles and have an oven for baking too. This video is based on a talk given on Rocket Ovens at the 2015 ETHOS Stove Conference in Kirkland, WA. Further resources How to make an outdoor brick oven from recycled material Rocket stove kitchen Exclusive content and FREE digital access to over 20 years of back issues
How to Pick Out a Safe Set of Cookware Being into the whole real food thing is tough. You gotta dissect labels for toxic ingredients, trudge off to an actual farm to get food, spend hours slaving away in the kitchen every week, and you don’t have the luxury of picking up an easy frozen meal at a normal grocery store and firing it up in the microwave when you don’t feel like cooking. Oh but it doesn’t end there. You also have to worry about whether or not the pots and pans that you cook all that healthy food in are killing you. That nonstick skillet you whipped up many a Hamburger Helper with in years past must not be touched. Your trusty old aluminum baking sheets aren’t so trustworthy anymore. So, then you have to shell out all kinds of cash for more expensive, non-lethal cookware. What’s wrong with nonstick? Weell… that’s kind of a long story. Nutshell version? Of course, those alternatives can be pretty spendy. Types of Healthy Cookware Stainless steel. Now, let’s pick out some pots and pans! Ooh, la la. Miscellaneous
oking Efficiently: 3-stone fires, biomass & hobs Despite technological advancements since the Industrial Revolution, cooking remains a spectacularly inefficient process. This holds true for poor and rich countries alike. While modern gas and electric cooking stoves might be more practical and produce less indoor pollution than the open fires and crude stoves used in developing countries, they are equally energy inefficient. In fact, an electric cooking stove is only half as efficient as a well-tended open fire, while a gas hob is only half as effective as a biomass rocket stove. Present-day cooking methods in poorer countries are quite well documented, as they are one of the main concerns of NGOs which promote appropriate technological development. The most basic and widely used type of cooking device is the wood-fuelled 'three-stone fire', which is made by arranging three stones to make a stand for a cooking pot. Inefficient biomass stoves also force people (again, most often women) to spend much of their time collecting fuel.
What Are The Best Ceramic Knives? - Best Chef Kitchen Knives There are many different varieties of kitchen knives in today’s culinary world all made differently and with different materials. Trendy ceramic knives are the latest knives on the block; these knives look great and hold a razor sharp edge extremely well. Ceramic knives are very lightweight compared to the stainless steel counterparts, super razor sharp, and the actual knife compound is around 50% harder than traditional stainless steel kitchen knives. A ceramic knife is a great knife for doing basic kitchen prepping like chopping or dicing vegetables; however these knives cannot really tackle the hardier kitchen tasks like de-boning, carving, cutting up frozen food, or even slicing cheese for this reason a ceramic knife will never replace the traditional stainless steel kitchen knives. A Selection of the Best Ceramic Knives How Do They Make Ceramic Knives? Ceramic knives are made out of very hard and tough ceramic substance called Zirconia. 3 Ceramic Knives Reviewed click for pricing
A fully transparent solar cell that could make every window and screen a power source - ExtremeTech Researchers at Michigan State University have created a fully transparent solar concentrator, which could turn any window or sheet of glass (like your smartphone’s screen) into a photovoltaic solar cell. Unlike other “transparent” solar cells that we’ve reported on in the past, this one really is transparent, as you can see in the photos throughout this story. According to Richard Lunt, who led the research, the team are confident that the transparent solar panels can be efficiently deployed in a wide range of settings, from “tall buildings with lots of windows or any kind of mobile device that demands high aesthetic quality like a phone or e-reader.” Scientifically, a transparent solar panel is something of an oxymoron. Solar cells, specifically the photovoltaic kind, make energy by absorbing photons (sunlight) and converting them into electrons (electricity). To get around this limitation, the Michigan State researchers use a slightly different technique for gathering sunlight.
Solar Oven Society The Earth Shelter - Green Homes People travel to The Farm Community in Summertown, Tennessee because it has one of the largest concentrations of "green" construction and energy efficient homes and commercial buildings you will find anywhere. One of the most innovative and ambitious examples of green construction on The Farm in recent years is an “earth shelter.” It was originally built to house as office space for one of the community’s members, and is now serving as a place for women coming to The Farm to have their baby delivered by one of the community's midwives. The back and sides of the structure are submerged into the side of a hill, using the thermal mass of the earth to insulate and regulate temperatures inside the building. These three walls are built from cinder blocks filled with concrete and rebar (more mass) that have been properly treated to eliminate moisture from passing through to the inside. The south face of the building is made primarily of glass.
Zen Backpacking Stoves - Home of the Alcohol Stove Choosing a Wood-Burning Stove for Your Home - Tools Related Content The Woods are on Fire Whenever I see wild fires on the news, it reminds me of when I was growing up in rural Arkanas. Whil... If you’ve picked up this magazine, you’re probably the type of person who likes to do things for yourself: You’ve taken steps to become more self-sufficient and rely less on big industry. Never before has the cost of home heating been so high. There’s nothing quite like the crackle of wood when it catches fire, the smell of smoke rising through the chimney, and the glow of embers on a cold night. Stove efficiency Compared to open fireplaces, woodstoves are incredibly efficient at heating a room. Types of wood-burning stoves There are three major types of woodstoves: circulating stoves, radiant heaters (“potbellied” stoves), and combustion stoves (“Franklin type”), with circulating stoves typically having the highest efficiencies. Picking installing a wood-burning stove When choosing a stove, there are a few important things to know. Masonry chimneys
Rocket and solar stoves ARC has published various manuals on cooking and heating technology which are written for a non-technical audience in simple, unintimidating language, with easy-to-follow diagrams. ARC has also published papers in scientific journals such as Boiling Point and Energy for Sustainable Development in order to make data regarding lab and field stove performance and global warming impact accessible to the wider scientific community. Test Kitchen Studies of Indoor Air Pollution from Biomass CookstovesKelley Grabow May 2013 Assessing Cook Stove Performance: Field and Lab Studies of Three Rocket Stoves Comparing the Open Fire and Traditional Stoves in Tamil Nadu, India on Measures of Time to Cook, Fuel Use, Total Emissions, and Indoor Air PollutionNordica MacCarty January 2008 Capturing HEAT: Five Earth-Friendly Cooking Technologies and How to Build ThemDean Still and Jim Kness, Aprovecho Research Center; illustrated by Loki Quinnangeles, Cathy White, Shon Lenzo, Lynn Forbes, and Amelia Ettinger
Stacking Wood - The One-Acre Farm Blog As a young man, back in the days of dinosaurs and stone tablets (according to the teens who know me today), I stacked far more wood than I care to recall. And stacked it all by hand. The old, two-this-way and two-that-way was, my grandfather insisted, the only way to properly dry wood for burning. And, yes, I stack now, somewhat. I have two circular stacks such as those I read about in one of the magazines put out by Ogden Publications. My pieces are split and just tossed. It also works in space savings. In the summer here, when temperatures here are well into the 90s or more, even when rain wet, that pile will remain more than reasonable dry. I have been cautioned about stacking next to the house from friends in the termite as well as the insurance industry. I just read an older article about this very subject written by Janna Benning in a 1994 issue of Mother Earth News, and there are several good points made in that article. Am I doing it 'right'? Photo: Fotolia/lenatru