Can You Burn Pressure Treated Wood in a Wood Stove?

When it comes to burning wood in your stove, selecting the right type of wood is crucial for both the efficiency of your stove and the safety of your indoor environment. A common question among homeowners is whether it is safe to burn pressure treated wood in a wood stove. The answer is ‘not recommended’. In this article, we will explore the reasons why burning pressure treated wood in your wood stove is not only unsafe but may breach regulations.

Can You Burn Pressure Treated Wood in a Wood Stove?

Understanding Pressure Treated Wood

Pressure treated wood is lumber that has been treated with chemicals to protect it against decay, insects, and weathering. This treatment extends the life of wood, making it a popular choice for outdoor structures like decks, fences and playground equipment. However, the chemicals used in the process, which often include compounds such as chromated copper arsenate (CCA), can pose serious health risks when burned.

Health and Environmental Risks

When pressure treated wood is burned, the chemicals infused into the wood are released into the air. These chemicals can be highly toxic, releasing harmful pollutants such as arsenic, chromium and copper. Breathing in these toxic fumes can lead to severe health issues, including:

  • Respiratory problems and irritation of the airways
  • Skin and eye irritation
  • Greater risk of developing cancer
  • Potential harm to the nervous system

Moreover, the ash produced by burning treated wood retains a significant amount of these hazardous chemicals. If this ash comes into contact with soil, it can leach harmful substances into the ground, posing a risk to plants, wildlife and water sources.

Legal Implications

Due to the serious health and environmental risks associated with burning pressure treated wood, many local and federal regulations strictly prohibit its burning. Non-compliance with these regulations can lead to fines and other legal consequences. It is essential to be aware of and adhere to local ordinances and environmental protection laws in your area regarding the disposal of treated wood.

Safe Disposal of Pressure Treated Wood

Given the risks associated with burning pressure treated wood, it is important to handle its disposal responsibly. Here are some recommended methods:

  1. Recycling: Check with your local waste management facility to see if they accept pressure treated wood for recycling. Some areas have specialised facilities for treating and repurposing this type of wood.
  2. Landfill Disposal: If recycling is not an option, disposing of pressure treated wood in a landfill is generally considered safe. Ensure that the wood is taken to a facility that can manage hazardous waste, preventing chemicals from contaminating the environment.
  3. Alternative Uses: Consider repurposing the wood for other projects where it does not need to be cut or burned, such as creating borders for raised garden beds (ensuring no contact with edible plants) or for constructing outdoor pathways.


Burning pressure treated wood in your wood stove is unsafe and should be strictly avoided. The health risks and legal implications associated with burning this type of wood make it unsuitable for indoor heating purposes. By choosing safer, untreated woods and following local regulations for disposing of treated lumber, you can enjoy the benefits of your wood stove without compromising your health or the environment. Always prioritise safety and sustainability when it comes to managing waste materials in your home. Overall you are always better off burning well seasoned or kiln dried natural untreated logs.