A health expert said burning wood to heat homes was an increasing pollution issue in Wales, and he questioned whether those who did it cared about the impacts. Emeritus professor Paul Lewis, of Swansea University's school of medicine, said better information was needed at all levels and that this could help people with wood burners make decisions.
The issue was discussed in a Swansea Council scrutiny meeting, where councillors were told that tighter regulation was being considered by the Welsh Government. Prof Lewis said he expected this would affect suppliers, covering things like the type of wood sold and its moisture content.
The Welsh Government said burning dry, seasoned wood, especially when using a modern, efficient wood burner, emitted significantly less fine particulate matter than burning wet wood. A spokesman said: "We have consulted on restricting the sale of wet wood and house coal, and expect to publish a summary of responses the spring. This will include details of our proposed next steps in this area."
