Stone backfill for the furnace bath

Requirements for the stone backfill for bath furnaces - a description, safety precautions when handling them, the nuances of styling, mixing different kinds of stones and materials

Storage of heat in the furnaces, stoves is the filling of stones. It fits the rate of 1 cubic meter of the sauna bath 60 kg of stones. Backfill should be separated from the flue and the combustion chamber to avoid carbon monoxide poisoning and contamination of stones with soot.

When using stone backfill in the oven, be sure to observe the following rules:
stones should be no smaller than 10 inches;
Stones are selected naturally occurring, except sandstone, which is prone to rapid destruction. He scored a pair of channels for the smoke and flames;
requires dense, whole rocks with high specific gravity. On the strength they can check out a simple stroke of each other. Type in such a reserve;
under high temperature rock backfill should not be expanded;
stones must be characteristic of rapid accumulation of heat and its impact, heat evenly;
stones should not crack after heating and exposure to cold water;
preference for dense round stone with a flat and smooth surface.

Silicic volcanic rocks of stones with sharp edges will not work. In contact with cold water, they can scatter to the sides.

For the purposes of the stone backfill furnace bath are perfect large stones of natural origin (granite, pebbles, boulders). Even astrologers claim that these stones are suitable for the elements water and fire, which prevails in the steam room.

Large stones are placed in an oven-heater on the bottom, and are smaller in size - are placed on top. In order to avoid ejection of cracked stones, the strongest of them stacked at the edges.

Can be a stone backfill for the furnace in the bath to add pig iron, mix them with stones. If they are arranged vertically, it will accelerate the heating of the stone filling from bottom to top, and further increase the heat in the steam room.

A good substitute for stones can serve as a broken porcelain and ceramic products. They are resistant to high temperatures and sudden changes. These pieces usually have small dimensions, therefore suitable for the top layer of backfill. Excellent choice bleach bricks, and pieces with fused edges.