Vermont Castings SDDVRBD, SDDVRC, SDDVRCCB Installation And Operating Manual page 42

Stardance Direct Vent - Rear Vent Gas Heaters
Table 2. Injector Orifice Size Matrix
Conversion to LP
Input (BTU/h)
Model Kit # Orifice Part # Minimum Maximum
SDDVR 20012911
1.30 mm 20012952 16,000 21,000
SDDVRC 20012913
Conversion to Natural Gas
Input (BTU/h)
Model Kit # Orifice Part # Minimum Maximum
SDDVR 20012919
#43 / .089" 20005480 15,000 21,000
SDDVRC 20012912
42 20012950