Everything is done quite easily and quickly. In a cast-iron stove put the tank with a lid made of galvanized sheet metal, only the bottom of it is made of soft aluminum. The reservoir is filled with the usual river sand, which is heated by a furnace, long keeps warm and heats the room. That heat from the heated bottom of the tank will penetrate into the sand around the tank volume every 3-
As a result, good thermal contact with the bottom plates of the sand in the drive heats up very quickly. Joint bottom of the tank is sealed with asbestos fabric and reinforced rivets.
The room begins to heat up almost immediately, as the furnace flooded and sand creates a reserve of heat which gives both during the firing, and after the termination of combustion.