3. In this system the tubes are almost equally operative.
4. The extra body of water immediately over the furnace is both an element of safety and a reservoir of power.
5. The outlet for the waste products of combustion is found in this style of boiler in a more convenient position at the rear end of the boiler.
6. The boiler being self-contained, can be used in places where height of story is limited.
Fig. 36.
SPECIFICATION FOR 125 HORSE POWER BOILER.
For one Horizontal Tubular Boiler 72 inches diameter 18 feet long for…………………of………