CEB Masonry Stove

Introduction

We are interested in a masonry stove made from CEB block. This is highly experimental - thus it must be kept simple. Nonetheless, we are aiming to have a hybrid wood/Babington flame. The combustion chamber should be designed like a wood stove - with a grate and ash compartment. We are making a mobile Babington burner in a tube or square - such that we can simply insert this into the combustion chamber. To do this, we need a small inlet hole in the door or from the top - for air delivery. We need a small hole from the top for oil delivery. The oil sump can be placed in the ash compartment, or via a tube to the outside. The oil must dribble on the Babington ball from the top. We are considering putting a metal plate on top - for cooking as well.

Possible Implementations

There are many details to the above scenario. Here are some variations:

• Basic design - wood oven only, testing the durability of CEB block in high heat conditions.
  • What is the simplest implementation of this?
  • Could this be as simple as a big CEB box, with metal surface on top?
  • If we want the hot air to circulate up and down in the structure, what is the simplest way to do this?
• Basic design with insertable Babington - not much more complex than the first, with the only requirement of air and oil inlet, and provision for collecting of excess oil
• Addition of cooking surface - this makes it more complicated

One way to do a flexible stove is to start by building the chimney - and then stacking movable bricks into a configuration that succeeds in building a successful burning chamber. Then we add a metal door, ash compartment door. We could have a bunch of bricks on hand - and when a successful configuration is achieved, we seal the outer bricks for smoke?

Simple Implementation

• Fundament made of one or better two layers of CEBs or concrete
• Walls with CEBs
• Metal plate as cover (for cooking also)
• Way out to the chimney, preferably in the upper part of the back wall
• Plate slide or something similar to close this way out. As soon as the wood has gased out, close the way out to keep the stored heat.
• Removable metal plate as front door

Important: the flue from the burning chamber trough the chimney. Therefore all the joints (walls <-> cover <-> way out) should be mor ore less air-tight. Thats easily done with clay.

Background

• For what kind of object will be the masonry stove used, hexayurt, cordwood, CEB house? Wal, thicknes, insulation?
• The dimensions of the room? The rule of thumb here is that 1 kachel (dimensions about 0.2 * 0.22 m) heats 1 m3 of space
• How much time there is for the design and build process?
• What are the preferred materials, clay, CEB, concrete ?

Examples

Outside bread backing oven

• Bread backing oven
• Simple wood fired oven
• Simple clay oven
• DIYS clay oven

Cooking stove

• How to build a cooking stove (video, second half)
• Rocket stove