Wood burning stoves
Also called wood fuel stoves, these run solely on wood logs, pellets or chips (although chips are really only used for large buildings such as community centres).
Log burner
There is a lot less manufacturing involved in logs than there is with pellets and chips – or indeed none if you collect already fallen wood yourself – making burning this type of wood very eco-friendly.
However, you need to factor in time for drying the wood – ideally around one to two years – to make it most efficient, which means you will also need the space. You can buy ready-dried wood, but at a higher price.