White Mountain Hearth 1 Installation Instructions And Owner's Manual page 47

DIRECT IGNITION PROPANE/LP GAS CONVERSION
Model AIR SHUTTER
SETTINGS
Opening "A"
DVD32 1/4" (6.4 mm)
DVD36 1/4" (6.4 mm)
DVD42 5/16" (7.9 mm)
DVD48 5/16" (7.9 mm)
23552-4-0408
"A"
BURNER ORIFICE
Propane/LP Orifice
#56
#55
1.45 mm
#52
Figure 62
Maxitrol Valve Conversion
REGULATOR FITTING
NOTE: STAMPED WITH
GAS TYPE SET FOR USE
Figure 63
Page 47