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121353-01H28
SPECIFICATIONS
• Rating (Variable): 20,000/39,000 Btu/Hr
• Gas Type: Natural Gas
• Ignition: Piezo
• Manifold Pressure: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Maximum - 10.5" W.C., Minimum* - 5" W.C.
• Shipping Weight: 32 lbs.
• Rating (Variable): 20,000/39,000 Btu/Hr
• Gas Type: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 8.0" W.C.
• Inlet Gas Pressure (in. of water):
Maximum - 14" W.C., Minimum* - 11" W.C.
• Shipping Weight: 32 lbs.
* 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.
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 too low. If
so, contact your local natural or propane/LP
gas supplier.
TECHNICAL SERVICES
You may have further questions about
installation, 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 FMI PRODUCTS, LLC’s
web site at .