XIX. QUICK BOILING KETTLES.
[Transcriber's note: Do not use lead solder on articles associated with
human or animal consumption.]
The principles of increasing the area of heating surface in model boilers
may be applied very practically to the common kettle. The quick-boiling
kettle is useful for camping out, for heating the morning tea water of the
very early riser, and for the study "brew," which sometimes has to be made
in a hurry; and, on occasion, it will be so welcome in the kitchen as to
constitute a very useful present to the mistress of the house.
As the putting in of the tubes entails some trouble, it is worth while to
select a good kettle for treatment. Get one that is made of thick tinned
sheet iron (cast-iron articles are unsuitable), or even of copper, if you
are intent on making a handsome gift which will last indefinitely. The
broad shallow kettle is best suited for tubing, as it naturally has a fair
heating surface, and its bottom area gives room for inserting plenty of
tubes. Also, the tubes can be of good length. Let us, therefore, assume
that the kettle will be of at least 8 inches diameter.
Pages:
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188