Cast iron cones for sauna heater. Unit weight 1.5 kg.

The thermal capacity of cast iron is 20% higher than that of stone, and the thermal conductivity is 30 times longer.

The cast iron core is durable, does not crack and is not resistant to sudden changes in temperature.

Filling the oven completely with cast iron cones is not recommended as the iron steam is very hot and dry. To balance the amount of moisture and get a soft steam, you need to put in the oven and stones.

The ratio of cast iron balls should be about 30/70 in favor of natural stone.