- Difficult to use and requires continuous maintenance
-Reserve and dry firewood, occupying storage space; Wet firewood cannot be burned and needs to be air dried at least six months in advance.
-Starting a fire, adding firewood, and observing the fire all require manual operation, and cannot be controlled by a single button like air conditioning/heating; I may have to get up at night to replenish firewood.
-After combustion, a large amount of ash will be generated, and it is necessary to regularly clean the ash box and flue. Failure to clean them in a timely manner will affect combustion. - Smoke and emission issues
-Burning produces smoke and particulate matter, and old-fashioned fireplaces have a large smoke exhaust capacity, which has an impact on outdoor air. Some cities have usage restrictions.
-Carbon accumulation in the flue (wood tar) poses a risk of fire if not cleaned for a long time; Improper use of indoor enclosed environments poses a risk of carbon monoxide poisoning.
-Burning will leave black stains on glass and walls, which can easily dirty the room. - Poor temperature controllability and uneven heating supply
-The heat is concentrated near the fireplace, and the room in the distance heats up slowly; When the fire is intense, the indoor heat becomes too hot, and the temperature drops rapidly after the firewood decays.
-There is a significant difference in thermal efficiency: traditional open fireplaces have very low thermal efficiency, with most of the heat being directly discharged through the chimney; A closed cast iron fireplace is much more efficient, but still not as stable as water/electric heating. - High installation cost and limited renovation
-We need to design chimneys/flues. Self built houses are fine, but most commercial houses do not have installation conditions.
-The construction costs for civil engineering, flue, and fire insulation are relatively high; Walls and ceilings need to be treated for fire prevention, occupying indoor space. - Safety hazards
-Open flames and sparks pose a risk of igniting surrounding fabrics and wooden furniture, and a fire prevention distance must be reserved around the fireplace.
-The combustion of firewood produces carbon monoxide, and it is necessary to ensure a smooth flue and moderate indoor ventilation. - Long term usage cost
-The procurement and transportation of firewood are ongoing expenses; Professional cleaning of the flue every year is a fixed maintenance cost.




