Fireplace

A fireplace that will heat up your space and bake/cook food, is an efficient way to burn wood. Go to www.woodheat.org for an informative wood burning journey. I was inspired by a design that I saw in the book "The barefoot architect" and the basintuthu stove as shown at http://www.newdawnengineering.com/website/stove/bakingstove/ I combined elements from each to come up with this version.
 

 

These are the various components of the fireplace. I used a 100litre scrap blue drum to enclose the smoke. The smaller black drum was not used.

This is the completed fireplace installed in my 20m2 lounge. Notice the optional fan at the back, to help circulate the hot air quicker.

 

For the oven, I found this box at the scrap metal dealers and measured the size to fit a medium pot. The plate is 2mm thick.

 The oven fitted inside the drum, through the door. I added a rack so that I can have two trays cooking at the same time. Notice the ring at the bottom, to elevate the tray slightly for baking the food instead of burning it.

 

The heart of the fireplace is this 20 Litre paint tin, insulated with a mixture of 5 parts vermiculite and 1 part cement. The air inlet, measuring about 50mmx50mm, allows the control of the burning flame. See http://www.hedon.info/View+Stove?itemId=9698 for more on this efficient tsotso stove featuring secondary combustion.

The inner part of the stove, is a 165mm outside diameter pipe with some flat bar welded on the underside to act as a grate. You can use 2mm, 3mm or 4mm thick pipe. The two pieces of angle iron sit at the bottom, to elevate the inner stove.

 
 
This is the lid for the oven. I used 1.6mm sheeting and bent a lip outwards. A piece of 40x40 angle iron acts as a handle.

Cut out about a 250mm diameter hole on the underside of the drum, which in this case is the lid side. This allows the flames/heat from th tsotso to enter. Notice an extra square frame added on the edges of the door opening, to prevent the door from swinging inside.

 

 

At the top/back of the drum, Cut out 100mm hole with the pieces flaring out. I used 100m round pipe as the chimney. You can also use gutter pipe. The fit is quite tight, so I did not even need to put a clamp. The smoke does not come out - the suction pressure of the chimney effect prevents this happening.

 
 
 
The pipe coming through the wall. Wrap a piece of 0.4mm galvanised sheet where the pipe joins, note that it is not welded, so that, if required,  it can be removed for cleaning the inside of the chimney. The edges are sealed with car gasket silicon.
 
The chimney extends about 600mm above the edge of the gutter.

 

A roof to prevent water going in, made of 0.4mm galvanised sheeting.

Nomsa with her fireplace, that I made for her out of a scrap 220L drum. She places her woodgas stove inside or under the drum, and closes the door so that the smoke exits through the chimney. 

 

The chimney made out of a piece of scrap 75mm rain gutter. I used roof sealer to seal the chimney on the inside and outside.  

 
 
CLICK HERE (size:140kb) for a brochure on a cast iron Kitchen King, an all in one stove, oven and water heater. For more info, contact Jaco at 0828282388.