admin2019-12-14T16:37:59+00:00 Stoves Project Description More Information Great efficiency characterizes DIPLOMAT 21 B, an economical wood fireplace with water jacket for heating of large surfaces. Color: black. Efficiency: greater than 73%. Fuel economy: greater than 30%. Place for wood storage. Ceramic glass on the door of combustion chamber. Lining: natural stone. Polygonal shaped.