Owners of wood burners, stoves and open fires will no longer be able to buy coal or wet wood to burn in them, under a ban to be rolled out from next year.
Sales of the two most polluting fuels will be phased out in England to help cut air pollution, the government says.
Bags of logs sold in DIY stores, garden centres and petrol stations often contain wet wood - a type of wood which produces more pollution and smoke.
The public should move to "cleaner alternatives", the government says.
Plans for the ban were first announced 18 months ago, but the Department for Environment, Food and Rural Affairs has now confirmed it is going ahead.
The government said wood burning stoves and coal fires are the largest source of PM2.5, small particles of air pollution which find their way into the body's lungs and blood.