Throwing water directly into a wood stove to extinguish a flue fire is generally not recommended. Doing so can create more significant issues and potential dangers. Here's why:
Steam Generation: When water is thrown into a hot wood stove or flue, it rapidly turns into steam due to the high temperatures. This sudden conversion can cause a rapid increase in pressure inside the stove or flue, leading to potential damage or even an explosion.
Spread of Fire: Pouring water directly into a wood stove can cause the fire to spread to areas outside the stove, such as the floor or surrounding materials, if the stove is not designed to handle the sudden cooling effect.
Cracking or Damaging the Stove: The sudden cooling of a hot stove can cause the metal to contract rapidly, leading to potential cracks or damage to the stove's structure.
Creosote Ignition: Flue fires are often caused by the buildup of creosote, a highly flammable substance that forms when wood burns. Pouring water directly into the flue may not effectively extinguish the creosote fire and can, in some cases, cause the creosote to ignite and spread further.
Instead of using water to put out a flue fire, consider the following steps:
Close the Damper: If a flue fire occurs, close the stove's damper and any air vents to limit the air supply, which can help slow down the fire's progression.
Use a Fire Extinguisher: Have a Class ABC fire extinguisher nearby and use it to suppress the fire. These extinguishers are suitable for wood and other common household fires.
Evacuate and Call for Help: If the fire cannot be controlled quickly, evacuate the area, and call the fire department immediately for professional assistance.
The best approach is to prevent flue fires in the first place through regular maintenance and cleaning of your wood stove and chimney. Have your chimney professionally cleaned at least once a year to remove any creosote buildup and reduce the risk of flue fires.
Always prioritize safety and follow the manufacturer's guidelines and safety instructions for your specific wood stove model. If you are unsure about how to handle a flue fire or any issues with your wood stove, consult a professional chimney sweep or a qualified technician.