Is Smokeless Charcoal Heating Safe

Charcoal is a traditional heating material, and with the development of society, there are more and more heating equipment. However, in some places, charcoal is still used for heating. However, traditional charcoal has smoke when burned, which makes it less comfortable to use for heating. Now that smokeless charcoal is available, is smokeless charcoal good for heating?
Smokeless charcoal has a long combustion time, high calorific value, and does not emit smoke, making it suitable for heating; However, it should be noted that using smokeless charcoal for heating is generally done indoors. If doors and windows are tightly closed and not ventilated, carbon monoxide may be produced, which can be harmful to the human body. If windows are opened for ventilation, heat may be lost, affecting the heating effect. Therefore, it is generally not recommended to use smokeless charcoal or other charcoal for heating.