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HD18PB, HD24PB
• Rating (Variable): 19,000/36,000 Btu/Hr
• Type Gas: Propane/LP
• Ignition: Piezo
• Pressure Manifold: 10.0" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 14" W.C., Minimum* 11" W.C.
• Shipping Weight: 27 lbs.
* For input adjustment
Note: Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If
they can't supply original replacement part(s),
call DESA Heating, LLC at 1-866-672-6040.
When calling DESA Heating, LLC, have
ready
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural
gas)
• purchase date
TECHNICAL SERVICE
You may have further questions about instal-
lation, operation or troubleshooting. If so, con-
tact DESA Heating, LLC at 1-866-672-6040.
When calling please have your model and
serial numbers of your heater ready.
You can also visit DESA Heating, LLC's web
site at www.desatech.com.
26
SPECIFICATIONS
REPLACEMENT PARTS
www.desatech.com
HD18NB, HD24NB
• Rating (Variable): 19,000/36,000 Btu/Hr
• Type Gas : Natural Gas
• Ignition: Piezo
• Pressure Manifold: 4.5" W.C.
• Inlet Gas Pressure (in. of water):
Maximum 10.5" W.C., Minimum* 5" W.C.
• Shipping Weight: 29 lbs.
* For input adjustment
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),
either contact your nearest Parts Central
(see page 27) or call DESA Heating, LLC at
1-866-672-6040 for referral information. A list
of authorized dealers can be found by visiting
www.desatech.com.
When calling DESA Heating, LLC, have
ready
• model number of your heater
• the replacement part number
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 too low. If
so, contact your local natural or propane/LP
gas supplier.
124531-01A
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