Stoves and ovens made from clay are a simple technology, which can be easily made and will provide many benefits, such as:
• Conserves firewood, which will save money, labour and helps protect the environment for the future.
• Produces less smoke, which helps reduce pollution and health problems.
• Can use alternative fuel, such as rice husks, coffee husks, sawdust or charcoal bricks, as a replacement for wood.
Clay stoves are commonly used in many regions. They are very simple to use and will conserve firewood because the clay helps to provide heat for cooking. Clay stoves are made from clay (75%), dried cow manure (25%), small amount of cement (5%), and a little water to make the mixture moist but not wet.
To build clayed based smokeless stoves, refer the video https://tinyurl.com/vmtxxzq
Other wise you can dig the earth at 45 degree where you will insert sticks in 45 degree. Here is a sample design using iron pipes. You can do the same by digging the earth.
