Installation manual
www.fmiproducts.com
113195-01K 29
SPECIFICATIONS
VI33PRB
• Rating: 22,000/33,000 Btu/Hr
• Gas Type: Propane/LP Gas
• Ignition: Piezo
• Pressure Manifold: 8.0" w.c.
• Inlet Gas Pressure (inches of water):
Max. - 14" w.c., Minimum* - 11" w.c.
* For input adjustment
VI33NRB
• Rating: 22,000/33,000 Btu/Hr
• Gas Type: Natural Gas
• Ignition: Piezo
• Pressure Manifold: 3.5" w.c.
• Inlet Gas Pressure (inches of water):
Max. - 10.5" w.c., Minimum* - 5" w.c.
* For input adjustment
REPLACEMENT PARTS
Note: Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call FMI PRODUCTS, LLC at 1-866-
328-4537.
When calling, have ready:
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• purchase date
Usually, we will ask you to return the part to
the factory.
TECHNICAL SERVICE
You may have further questions about instal-
lation, operation, or troubleshooting. If so,
contact FMI PRODUCTS, LLC at 1-866-328-
4537. When calling please have your model
and serial numbers of your heater ready.
You can also visit our web site at
www.fmiproducts.com.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specied heat
• propane/LP gas supply may be low
You may feel your gas pressure is low. If so,
contact your local natural or propane/LP gas
supplier.