I attended the World of Concrete in Las Vegas, Nevada, last month. I assisted in the building of a small contraflow masonry heater. A pizza oven was built, too. I'm not a mason so I did some of the grunt work - mixing mortar, getting water, cutting bricks, etc..., but I did lay a few bricks and managed to "test" the finished pizza .
The heater was done in a couple of days. The core and the shell of the heater were built at the same time (on bigger heaters the core is built then the shell). This is 36" wide by 24" deep and stands about 6 feet tall. It is a room heater. Large flue tile, 24", cut in half were used for most of the side channels (top was fire brick). This heater is going to be tested and results are going to EPA. I guess the masonry heaters association is trying to get masonry heaters listed with the EPA.
Here is a brief description of the pictures. You can first see the flue tiles and common brick. Than the next few pictures are of the core. The flue tile grows vertically. Eventually the core is wrapped in cardboard. A cap is applied and the shell or outer bricks are mortared into place. A door is installed. This is a contraflow design - so the heat goes up vertically than goes 180 degrees and goes down, and than out the back. A pipe was put on the back and the little heater was fired up. Here are some pictures.
The heater was done in a couple of days. The core and the shell of the heater were built at the same time (on bigger heaters the core is built then the shell). This is 36" wide by 24" deep and stands about 6 feet tall. It is a room heater. Large flue tile, 24", cut in half were used for most of the side channels (top was fire brick). This heater is going to be tested and results are going to EPA. I guess the masonry heaters association is trying to get masonry heaters listed with the EPA.
Here is a brief description of the pictures. You can first see the flue tiles and common brick. Than the next few pictures are of the core. The flue tile grows vertically. Eventually the core is wrapped in cardboard. A cap is applied and the shell or outer bricks are mortared into place. A door is installed. This is a contraflow design - so the heat goes up vertically than goes 180 degrees and goes down, and than out the back. A pipe was put on the back and the little heater was fired up. Here are some pictures.
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{inside joke}
