Carbon monoxide in the heating season

A furnace with a closed valve and the remains of unburned fuel is a source of carbon monoxide and an invisible poisoner. Assuming that the fuel is completely burned, the owners of the stoves close the chimney flap to preserve heat. Embers with a lack of air create carbon monoxide that penetrates into the room through leaky areas of the furnace system.
Also, in the chimney, with weak traction and without air supply, there is a chemical underburning of fuel, and as a result-the occurrence and accumulation of carbon monoxide at home. The air supply is sufficient both to maintain gorenje and for optimal traction in the fireplace or stove system. Sealed rooms and the lack of supply air form problems with natural ventilation and cause poor draft in the furnace.
For a good gorenje of fuel in the fuel tank of the furnace, it is necessary to supply the necessary volume of supply air, especially when heating with coal. If there are a few unburned embers left in the furnace, it is better to extinguish them or wait for them to completely burn out. When the coals become dark and there is no flame above them, you can close the valve after 10 minutes. You need to finish the work of the fireplace or the furnace furnace two hours before bedtime. So carbon monoxide in the house will not be a problem!