After thousands of hours of development the saltfire st3 is the larger higher output version of our popular st1 wood burner it is simple easy to operate with user friendly controls the st3 is also much cleaner than the required standard for defra exemption which means it can legally be used anywhere in the uk to burn wood including the strictest of smoke control zones the saltfire st3 is a dedicated wood burner only if you need a multi fuel stove to also burn coal please see other s