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For more specific burner information, specifications or service information, reference the training manual
enclosed with each Riello burner or contact:
Riello Corporation of America,
5 Pond Park Road Hingham, Massachusetts 02043
Phone: (617) 749-8292
2 STAGE FIRING RATES
CAPACITY
FIRING
RATE
NOZZLE SIZE
Riello
INPUT RATE*
(BTU/HR)
EFFECTIVE**
HEATING
CAPACITY
HIGH CAPACITY
HIGH FIRE
.70 X 45° W
106,250/170psi
90,000
LOW FIRE
85,000/130psi
74,000
LOW CAPACITY
HIGH FIRE
.50 X 45° W
85,000/170psi
74,000
LOW FIRE
70,000/130psi
60,000
Table 9: Riello 2-stage firing rates
* Based on #2 domestic heating fuel oil having heating value of 140,000 BTU per gallon.
** Based on thermal efficiency of 84%-85%.
MOUNTING THE 2-STAGE RIELLO BURNER:
It is necessary that the insulation gasket be placed between the mounting plate and the burner flange.
The insulating gasket has six holes, which, if necessary, can be modified as shown. (see figure 14-1)
Figure 14-1: Burner gasket and mounting Figure 14-2: Burner fixing and hinge assembly