The Renaissance Rumford model was the world’s first certified open-door clean-burning fireplace. The design is taken from a true Rumford fireplace, making it much taller than a traditional fireplace. The shape of a Rumford fireplace is renowned for an unparalleled level of performance. RSF’s patented Rumford design has taken the traditional elements of a Rumford fireplace to the next level thanks to custom engineering, precision manufacturing, and quality materials.