My oldest son William has joined me making bricks. I have contracted out to him the job of making the firebricks for my wood heat boiler. He has done a pretty good job for a near 16 year old kid. Using only a shovel, wheelbarrow, mixer and hand mold, he has made me 60 of these so far.
Refractory and fire clay mortar are often used to join fire brick together. Ordinary Portland cement mortar is also used, but common mortar cannot withstand extreme temperatures; as a result, many building codes require the use of refractory mortar.
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