![]() ![]() Properly installed, factory-built fireplaces have an excellent safety record. Different manufacturers may have different suggested clearances, and it is important for installers to note this fo r proper and safe installation.įactory-built fireplaces pass rigorous testing standards established by the Underwriters Laboratories and the American Gas Association. In general, ½-inch of clearance to combustibles is required around the outside of the firebox enclosure, and 2 inches of clearance are required around the chimney, except where the firestop is installed if a chimney passes through two levels of a house. An insulating air blanket is incorporated in the design to keep the outer wall of the fireplace cool, which allows safe installation in very close proximity to wood framing. Pre-manufactured masonry fireplaces are also available, and they incorporate engineering techniques not often used in field-constructed fireplaces, such as a listed venting system.įactory-built fireplaces are also often called “zero-clearance” fireplaces because of their minuscule safe-clearance requirements. It is lightweight, inexpensive, safe and efficient, and can be installed fairly easily on any floor of a home. Rumford’s design quickly achieved wide popularity in London households, and he became something of a celebrity as news of his innovation spread.Ī factory-built fireplace is made up of a firebox enclosed within a steel cabinet, and a steel chimney or flue. His applied theories on thermodynamics led to the design of a restricted chimney opening to increase updraft, which allowed fire to burn in an enclosure without smoke filling the room. The traditional masonry fireplace is based largely on the innovations of Count Rumford, an18 th-century inventor. ![]() What is a factory-built fireplace and how does it differ from a masonry fireplace? ![]() With this in mind, let's take a look at one of the more modern options available, the factory-built fireplace. It may be for this reason that some type of wood-burning enclosure has remained a staple of many households, even though open fire is no longer a necessity for cooking and heating. Long commutes to work in the cold and the increasingly short hours of daylight in the fall and winter are made more bearable by the comfort and familiarity of family gatherings by the fire. There’s nothing like coming home and warming up next to a roaring fire during the long, cold months of winter, or even chilly evenings in any season. ![]()
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