ECONOMICAL USE OF FUEL IN CREAMERIES. 
13 
to design a boiler setting that will meet exactly the requirements 
of a given set of conditions. With the type of setting shown in 
figure 5 and dimensions in Table 2, however, it is believed that 
satisfactory results will be obtained when using an average grade of 
soft coal. The dimensions of the distance, between grates and 
boiler are to be considered as only approximate minimum limita- 
tions. If the height of the boiler room will permit, this dimension 
should be at least the diameter of the boiler, but. in most milk plants 
and creameries to build the boiler-room ceiling higher would neces- 
sitate an increased expense in the construction; hence to a certain 
extent the height given is a compromise between the cost of building 
and the better combustion of fuel. 
horizontal return tubular boilers. 
Grate. 
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