The back and sides of the fireplace should be constructed of firebrick only.
The straw burners are provided with a firebrick arch in the firebox.
Few, if any, samples of firebrick will stand the heat of this blast, if the system is fully utilized.
A single layer of firebrick completes the flooring of the interior area, which is also flush with the bottom of the flue openings.
The furnace in which this operation is carried out is a tall, vertical cylinder of iron, lined with firebrick.
Adjoining is the laconicum with a firebrick furnace, after the nature of that of which I have before given full detailed drawings.
There are no firebars at the bottom, so that the fuel rests on a floor of firebrick.
Slacked-lime putty may be used in place of hydrated lime; firebrick is best laid in fire-clay.