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Franklin stove, originally invented by Benjamin Franklin, is a more efficient type of wood-burning fireplace. It was finicky and never caught on, but many stoves continue to be referred to as "Franklin" stoves. Carl Johan Cronstedt is reported to have increased efficiency of wood-burning stoves by a factor of eight in the mid-18th century.
A common hardwood, red oak, has an energy content of 14.9 mega joules per kilogram (6,388 BTU per pound), and 10.4 mega joules recoverable if burned at 70% efficiency. [5] The Sustainable Energy Development Office (SEDO), part of the Government of Western Australia states that the energy content of wood is 16.2 megajoules per kilogram (4.5 kWh/kg).
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 ...
4. Alfi Round Fiberglass Portable Outdoor Hot Tub. Best for the nomad who wants a wood-burning soak wherever they go. The old-school nature of this hot tub alone will have you intrigued.
Their product lines include gas, electric, and wood fireplaces for both indoor and outdoor settings. [4] They also produce additional products and accessories such as fireplace inserts, free-standing stoves, gas log sets, and venting products. [5]
Despite the widespread use of renewable energy and progress to make processes more energy efficient, demand is expected to grow. ... by legacy energy sources, most likely natural gas, or 3.3 ...
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