continue to do its work.

[Illustration: Fig. 7]

71. FIRELESS-COOKING GAS STOVES.--A style of gas stove that meets with
favor in many homes is the so-called fireless-cooking gas stove, one
style of which is shown in Fig. 7. Such a stove has the combined
advantages of a fireless cooker, which is explained later, and a gas
stove, for it permits of quick cooking with direct heat, as well as slow
cooking with heat that is retained in an insulated chamber, that is, one
that is sufficiently covered to prevent heat from escaping. In
construction, this type of stove is similar to any other gas stove,
except that its oven is insulated and it is provided with one or more
compartments for fireless cooking, as at _a_ and _b_. Each of these
compartments is so arranged that it may be moved up and down on an
upright rod, near the base of which, resting on a solid plate _c_, is a
gas burner _d_, over which the insulated hood of the compartment fits.
When it is desired to cook food in one of these compartments, the hood
is raised, as at _b_, and the gas burner is lighted. The food in the
cooker is allowed to cook over the lighted burner until sufficient heat
has been retained or the process has been carried sufficiently far to
permit the cooking to continue without fire. Then the insulated hood is
lowered until the compartment is in the position of the one shown at
_a_. It is not necessary to turn off the gas, as this is done
automatically when the hood is lowered.


KEROSENE STOVES AND THEIR OPERATION

[Illustration: Fig. 8]