The saltfire st1 is one of the most efficient and clean burning stoves available very few stoves which are as advanced as this are currently in production it has simple easy to operate user friendly controls and is also much cleaner than the required standard for defra exemption which means it can legally be used to burn wood anywhere in the uk including the strictest of smoke control zones the saltfire st1 is a dedicated wood burner only if you need a multi fuel stove to also burn co