Removing Barrier/Glass Door
Gloves must be worn when removing/replacing glass door. If glass
is broken, tape remaining glass frame before removing.
1. Remove bottom access panel.
2. Remove barrier by holding the barrier in front of the glass door
and slide it up into the channel underneath the upper front face
to release it from bottom channel then pull it out and away from
the fireplace (see Figure 1a, page 2).
3. Unlock 2 door latches on bottom of firebox.
4. Tilt open glass door 30° from bottom of firebox and lift up to
release door from firebox top retainer (see Figure 2, page 2).
5. To replace the barrier and glass door, reverse steps above.
WARNING: Reinstall any barrier removed before
operating the fireplace. The barrier is designed to
reduce the risk of burns from hot glass. Do not operate
the fireplace without the barrier installed.
IHP.US.com
This conversion kit must be installed by a qualified
service agency.
Read these instructions completely before installing this conversion kit.
Before proceeding, make sure gas control valve is in the OFF posi-
tion, all electrical power to the appliance is off and fireplace is cool
to the touch.
CAUTION: The gas supply shall be shut off prior to disconnect-
ing the electrical power before proceeding with the conversion.
Parts included with this kit:
Part No. Description Quantity
127175-01 Instruction Sheet 1
24771 Front Burner Orifice NG (#42) 2
23101 Rear Burner Orifice NG (#44) 2
127213-02 Conversion Label 1
106080-01 Conversion Information Label 1
123802-01 Gas Valve Regulator NG & Injector 1
Tools Required
• 3/8" Hex Socket Wrench or Adjustable Wrench
• 7/8" Open End Wrench or Adjustable Wrench
• 3/4" Open End Wrench or Adjustable Wrench
• Slotted Screwdriver
• Needle Nose Pliers
• #2 Short Phillips Screwdriver
• Thread Sealant (Resistant to Propane/LP)
ACCESSING FIREPLACE
The gas control valve and main burner orifice are located under firebox
floor of appliance and are accessed by removing bottom access door.
2 orifices are located in burners and are accessed by removing the
bottom access panel, barrier, glass door and burner.
Removing Bottom Access Panel
Remove bottom access panel by pulling top end forward and away
from appliance (see Figure 1). To replace removed item, reverse
procedure above.
Figure 1 - Removing Bottom Access Panel
Bottom Access
Door
Barrier
NCD-42S GAS CONVERSION KIT, PROPANE/LP GAS TO NATURAL GAS
[FOR USE WITH APPLIANCE MODELS SENTINEL42TEP & DRT4042TEP]
NCD-42S GAS CONVERSION KIT
PROPANE/LP GAS TO NATURAL GAS
P/N 127175-01
Rev. C, 10/2019
HEARTH PRODUCTS
KITS AND ACCESSORIES
Cat. No. Model Description
F1105 NCD-42S Gas Conversion LP to NG