www.desatech.com
113195-01A
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SPECIFICATIONS
VI33NRB
VI33PRB
Btu (Variable)
22,000/30,000 22,000/30,000
Type Gas
Natural Gas
Propane/LP
Ignition
Piezo
Piezo
Pressure Manifold 3.5" W.C.
8.0" W.C.
Inlet Gas Pressure (in. of water)
Maximum
10.5"
14"
Minimum*
5"
11"
* For input adjustment
REPLACEMENT PARTS
Note:
Use only original replacement parts. This
will protect your warranty coverage for parts re-
placed under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If they
can’t supply original replacement part(s), call
DESA Heating Products’ Technical Service De-
partment at 1-866-672-6040. When calling DESA
Heating Products, have ready
• your name and address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
Usually, we will ask you to return the part to the
factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product. If they
can’t supply original replacement part(s), call
DESA Heating Products at 1-866-672-6040 for
referral information. When calling DESA Heat-
ing Products, have ready
• model number of your heater
• the replacement part number
TECHNICAL SERVICE
You may have further questions about installation,
operation, or troubleshooting. If so, contact DESA
Heating Products’ Technical Service Department
at 1-866-672-6040. When calling please have your
model and serial numbers of your heater ready.
You can also visit DESA Heating Products’ tech-
nical services web site at
www.desatech.com.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
You may feel your gas pressure is low. If so, con-
tact your local natural or propane/LP gas supplier.
