A halogen oven, halogen convection oven,
or halogen cooking pot is a type of oven that utilizes a halogen lamp as its
heating element. It is used primarily for cooking. Halogen ovens are often
noted for being more energy-efficient than a conventional oven due to their use
of a halogen lamp reducing
the cooking time usually needed in a conventional oven.
DesignA basic halogen oven features a
heating chamber consisting of a clear glass bowl with a removable glass lid to
which the heating assembly is secured. Inside the heating chamber, multi-level
metal racks are used to elevate the contents during the cooking process. Within
the heating assembly are the circular halogen lamp, a fan, and the controls for
the oven which frequently include an automatic shut-off timer and a temperature
control interface. On a basic model, the heating assembly has a handle to allow
users to safely lift the lid off the unit. More elaborate models have a hinged
lid mounted on an adjustable rear support which can be raised to accommodate an
extension ring. This raises the heating assembly to reduce the grilling effect
as well as increasing the volume of the oven. Hinged models are safer and
easier to use. A safety shut-off switch turns off the lamp when the lid is
raised during operation. The glass bowl is positioned in a stand which raises
the bowl off the table-top and decreases the transfer of heat to the
surrounding surfaces. Handles are often incorporated into the stand to allow
for users to move the unit, providing safety especially during or after
operation.
Operation
The halogen lamp is turned on and off by
a simple thermostat or electronic control and generates waves of infrared light
to heat the air within the heating chamber. The fan then circulates this heated
air throughout the chamber to evenly cook the contents of the bowl through
convective heat transfer, or convection. Self-cleaning can be performed by
adding some hot water and detergent to the empty bowl. The fan swirls the hot
water and usually takes about ten minutes to remove any grease and some food
deposits.
Efficiency
Reports often claim halogen ovens have
shorter cooking times than conventional ovens, with one report stating a figure
of up to 40% faster, but 20% faster on average. Another report claims a halogen
oven cooks food up to 60% faster than a conventional oven. In terms of energy
use, one source claims that a halogen oven uses about "half the
electricity of a conventional oven and about the same as a microwave oven".
Easy-Bake Oven
In an effort to comply with the Energy
Independence and Security Act of 2007, Hasbro redesigned its Easy-Bake Oven to
utilize a halogen lamp for the oven's heating element in place of its less
efficient conventional incandescent heating element.
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