Double Convection
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Vulcan Double-Stack Electric Convection Oven, Model VC4ED $3,360.00 |
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AMERICAN RANGE M-2 DOUBLE STACK GAS CONVECTION OVEN BAKERY DEPTH 2 SOLID DOORS $9,975.00 |
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Lang Double Convection Oven Electric ECCO-C5 Very Good $4,200.00 |
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Double Convection Ovens Electric 208 Volt Vulcan Hobart Full Size Stainless $3,499.00 |
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Wolf Dual Double Commercial Full Size Convection Oven NSF $3,499.00 |
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GE Profile 27″ Double Electric Wall Oven w/ Convection and Self Clean PK956SRSS $2,340.99 |
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GE 27″ Double Electric Wall Oven w/ Convection and Self Clean JKP75SPSS SS $2,255.99 |
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VULCAN FULL STACK DOUBLE STACK CONVECTION OVEN (ELECTRIC) $4,500.00 |
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Dacor 30″ Double Electric Wall Oven w/ Convection and Self Clean $4,617.99 |
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Franklin Duke 613 Double Deck Full Size Convection Oven Electric Model 613-E4V $2,995.00 |
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U.S. Range – SunFire Double Deck Gas Convection Oven - $5,600.00 |
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NEW SOUTHBEND GAS CONVECTION OVEN DOUBLE DECK BGS22SC $5,380.00 |
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MOFFAT E35/2 ELECTRIC DOUBLE DECK CONVECTION OVEN FULL SIZE MANUAL $13,084.37 |
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NEW SOUTHBEND CONVECTION OVEN ELECTRIC DOUBLE STACK $6,806.80 |
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CLEVELAND DOUBLE DECK CONVECTION STEAMER – GAS – WORKS GREAT! # 24CGM200 $2,999.00 |
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NEW SOUTHBEND GAS DOUBLE DECK CONVECTION OVEN SLGS/22SC $6,806.20 |
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Jenn-Air JJW2830WP 30″ Electric Convection Double Oven $3,299.99 |
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Electrolux 30″ Microwave Combination Double Electric Wall Oven w/ Convection ; $3,947.99 |
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BLODGETT ELEC DOUBLE CONVECTION OVEN ZEPHAIRE E DBL $8,650.00 |
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Kitchenaid 27″ Double Convection Wall Oven $1,700.00 |
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HOBART HGC5 DOUBLE STACK NATURAL GAS CONVECTION OVEN $3,795.00 |
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BLODGETT EF-111 ELECTRIC DOUBLE STACK CONVECTION OVEN $3,295.00 |
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VULCAN SNORKEL DOUBLE STACK FULL SIZE CONVECTION OVEN $3,495.00 |
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GE Profile 30″ Double Electric Wall Oven w/ Convection and Self Clean PT956DRBB $2,204.99 |
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Viking VEDO130SS Electric Double Wall Oven Convection Stainless Steel $3,299.99 |
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Duke 613 Double Deck Full Size Convection Oven Electric Model E4X $3,950.00 |
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Lang Double Convection Oven Model ECCO-LMDR 480V Electric $2,650.00 |
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Blodgett Double Convection Oven Model EF-111 Electric $2,750.00 |
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Franklin Duke 613 Double Deck Full Size Convection Oven Electric Model 613-E2W $3,850.00 |
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New Garland Sunfire SDG-2 Convection Oven Double Stack $5,999.99 |
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Whirlpool 30″ Double Electric Wall Oven w/ Convection and Self Clean RBD307PVS $1,754.99 |
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GE 30″ Double Electric Wall Oven w/ Convection and Self Clean JTP75SPSS SS $2,298.99 |
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Bosch 300 30″ Double Electric Wall Oven w/ Convection and Self Clean HBL3550UC $2,397.99 |
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Bosch 500 30″ Microwave Combination Double Electric Wall Oven w/ Convection ; $2,667.99 |
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SOUTHBEND BGS/22SC DOUBLE DECK GAS CONVECTION OVEN $5,380.00 |
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New Fri Jado Hobart Rotisserie Convection Oven Chicken Ribs DOUBLE STACK NSF $7,000.00 |
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DeLuxe Model CR-2-6D Double Convection Oven $8,999.00 |
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Vulcan Double Stack Convection Oven – Natural Gas Convection Oven – Snorkel $1,499.99 |
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Imperial ICV-2 Double Convection Oven – Gas $5,040.00 |
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Imperial Double-Deck Electric Convection Oven, NEW $6,295.00 |
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Imperial Double-Deck Gas Convection Oven, NEW $6,295.00 |
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Southbend 10 Burner Range W/ Double Convection Oven – 10 Burner Stove $2,999.00 |
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BLODGETT double deck gas convection oven $2,000.00 |
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Jenn-Air 27″ Double Wall Oven with MultiMode Convection $1,999.00 |
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HOBART doublestack double stack CONVECTION OVENS oven electric convection ovens $3,599.00 |
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Garland Master Electric Double Convection Oven Used Very Good Condition $4,500.00 |
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GE Monogram 30″ Stainless PRO Built-In Electronic Convection Double Wall Oven $3,199.00 |
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Frigidaire Self Cleaning “Speed bake convection” Double Wall Oven New White $550.00 |
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Frigidaire Gallery 27″ Double Electric Wall Oven w/ Convection and Self Clean $1,992.99 |
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Frigidaire Gallery 27″ Double Electric Wall Oven w/ Convection and Self Clean $1,847.99 |
Double Glazing, Insulated Glass And Energy Efficiency
As long as there have been windows in buildings it has been recognized that they are a source of draftiness, heat loss or gain, migration of air contamination as well as their original purpose, to provide light and ventilation. Originally, windows were simply openings in the building envelope that allowed in light. They were closed with wooden shutters and covered with draperies to help keep out the cold. The advent of glass allowed for the development of window sashes that permitted light to enter, but kept out (some of) the cold when closed.
The first attempts to provide better energy efficiency and eliminate some of the draftiness were storm windows. Originally, these were simply wooden frames, glazed with a single sheet of glass, that were mounted over the exterior of the existing window. They effectively provided “double glazing” but no ventilation, so it was an annual ritual in the Fall to install the storm windows and in the Spring, to remove them. Later developments provided operating sash storm windows in which the meeting rail, or where the sashes came together, closely aligned with that of the prime window. These were quite effective, but still allowed some air convection through loose-fitting sashes and poor weatherstripping.
Modern insulated glass came into being in the early 1970s. Two pieces of glass, a separator and a sealant were formed into a single unit “sandwich” that was glazed into sashes designed to accept the thicker pane. The dead-air space in the sandwich reduced the heat transference through the glass (conduction), but windows were still drafty at the meeting rails and around the edges of the sashes (convection). Wool pile weatherstripping with Mylar fins helped eliminate much of the convection and the modern, energy efficient window came into being.
The insulated glass units were originally about 1/2 to 5/8 inches thick. Testing showed that the greater the dead-air space in the sandwich, the more energy efficient the unit, so windows were redesigned to accept thicker panes of insulated glass, up to 1 inch in depth.
It was reasoned that if two lites (panes) of glass reduced conduction, three lites would be even more efficient. . . and triple-glazing was born. Because of frame web and sash weight limitations, this was usually applied to commercial structures with fixed glass. Residential buildings were usually were fitted or retrofitted with “double-glazing” in the windows.
In and effort to improve the energy efficiency of window glass a clear film was suspended between the lites of glass in an insulated unit, to further reduce conduction. This improved the energy efficiency markedly. Then came “low emmissivity” glass. It was discovered that glass could be coated with a microscopic film of metal that would reflect heat without reducing the visibility very much. Depending upon the climatic conditions where the windows were to be installed, the Low-E glass would have the coating on either the number two or three surface in the glass unit, i. e. in a warm climate, the surface coated would be the inside of the inside lite of glass in the insulated sandwich, thus reflecting the heat to the outside. In a cooler climate, the inside of the outside lite of glass would be coated to reflect the heat to the inside.
It has been estimated by the window industry that modern insulating glass has reduced the energy loss through windows by as much as 80% or more. The fringe benefit is the reduction of outside noise by more than half.
About the Author
Steven Holmes
fmage]
Jenn Air Ovens Video Featuring Convection Double Wall Oven