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  2. Direct vent fireplace - Wikipedia

    en.wikipedia.org/wiki/Direct_vent_fireplace

    Even a very efficient traditional fireplace only operates at about 15% efficiency. This is because most of the hot air generated by the fire travels up the chimney due to convection. A traditional fireplace can also draw hot air in from the room and expel it through the chimney, further lowering the efficiency. The design of the direct vent ...

  3. Mason Contractors Association of America - Wikipedia

    en.wikipedia.org/wiki/Mason_Contractors...

    The association conducts various classes. Some programs include Masonry Foreman Development, Basic Masonry Estimating, Masonry Quality Institute, and other topics such as Masonry Wall Bracing and Understanding Masonry Codes and Standards. The MCAA provides information on careers in masonry to students, parents and high schools.

  4. Masonry - Wikipedia

    en.wikipedia.org/wiki/Masonry

    The common materials of masonry construction are bricks and building stone, rocks such as marble, granite, and limestone, cast stone, concrete blocks, glass blocks, and adobe. Masonry is generally a highly durable form of construction. However, the materials used, the quality of the mortar and workmanship, and the pattern in which the units are ...

  5. Masonry heater - Wikipedia

    en.wikipedia.org/wiki/Masonry_heater

    A masonry heater is defined by ASTM International as a "vented heating system of predominantly masonry construction having a mass of at least 800 kg (1,760 lb), excluding the chimney and masonry heater base. In particular, a masonry heater is designed specifically to capture and store a substantial portion of the heat from a solid fuel fire in ...

  6. Chimney - Wikipedia

    en.wikipedia.org/wiki/Chimney

    A chimney is an architectural ventilation structure made of masonry, clay or metal that isolates hot toxic exhaust gases or smoke produced by a boiler, stove, furnace, incinerator, or fireplace from human living areas.

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