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Amount of wet exhaust gas, scf/10 6 Btu of fuel 11,600 11,930 12,714 CO 2 in wet exhaust gas, volume % 8.8 12.4 13.7 O 2 in wet exhaust gas, volume % 2.0 2.6 3.4 Molecular weight of wet exhaust gas 27.7 29.0 29.5 Dry exhaust flue gas: Amount of dry exhaust gas, m 3 /GJ of fuel 241.6 269.3 293.6 Amount of dry exhaust gas, scf/10 6 Btu of fuel ...
A kitchen hood, exhaust hood, hood fan, extractor hood, or range hood is a device containing a mechanical fan that hangs above the stove or cooktop in the kitchen. It removes airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration. [ 1 ]
The first fume hoods, constructed from wood and glass, were developed in the early 1900s as a measure to protect individuals from harmful gaseous reaction by-products. Later developments in the 1970s and 80s allowed for the construction of more efficient devices out of epoxy powder-coated steel and flame-retardant plastic laminates .
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Direct vent fireplaces are extremely efficient compared to a traditional fireplace and can operate at about 85% efficiency. 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.
Many are designed to double as wood-fired ovens that allow homeowners to create meals [3] such as pizzas and casseroles. Entire outdoor kitchens can evolve from the fireplace. An outdoor fireplace can simply be a decorative element, which allows homeowners to enjoy a crackling fire while entertaining in the backyard.
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The restaurant, which serves lunch, dinner and weekend brunch, is 9,500 square feet with more than 300 seats, including a counter in the back that faces the wood-fire stove, where the pizzas are made.