No chimney protection will give a 100% guarantee against fire. The main condition is not to leave a heating sauna stove unattended.
What is the heating temperature of the sauna stove and chimney. What to look for when firing a stove to prevent unpleasant consequences. Temperature measurement with a pyrometer in the most dangerous places, when water is heated from a sauna stove. The ignition temperature of wood during long heating is about 150 degrees Celsius!
HOW TO BURN THE BATH!
1. Be sure to fill the tank with water.
2. Remove the flooring in front of the stove.
3. Heat the stove with the front doors open.
4. Constantly monitor the process of combustion, heating.
5. Steamed when firewood burned in the stove, the heat remained.
6. Before vaping, close the drain hole.
7. Before washing, open the drain hole.
8. After washing, open the doors to dry the bath. If the firewood burns out in the firebox, the outer door can be closed, so the bath will dry out much faster.