13Heatilator • NDI30, NDI30-SP, NDI35, NDI35-SP, NDI30-SPFK, NDI35-SPFK • 2226-900 Rev. G • 4/11
Venting
Frequency: Seasonally
By: Homeowner
Tools needed: Protective gloves and safety glasses.
• Inspect venting and termination cap for blockage or
obstruction such plants, bird nests, leaves, snow, debris,
etc.
• Verify termination cap clearance to subsequent construc-
tion (building additions, decks, fences, or sheds). See
Section 6.
• Inspect for corrosion or separation.
• Verify weather stripping, sealing and fl ashing remains
intact.
• Inspect draft shield to verify it is not damaged or missing.
B. Maintenance Tasks-Service Technician
The following tasks must be performed by a qualifi ed
technician.
Gasket Seal and Glass Assembly Inspection
Frequency: Annually
By: Service Technician
Tools needed: Protective gloves, drop cloth and a stable
work surface.
• Inspect gasket seal and its condition.
• Inspect fi xed glass assembly for scratches and nicks that
can lead to breakage when exposed to heat.
• Confi rm there is no damage to glass or glass frame.
Replace as necessary.
• Verify that fi xed glass assembly is properly retained and
attachment components are intact and not damaged.
Replace as necessary.
Logs
Frequency: Annually
By: Service Technician
Tools needed: Protective gloves.
• Inspect for damaged or missing logs. Replace as necessary.
Refer to Section 12 for log placement instructions.
• Verify correct log placement and no fl ame impingement
causing sooting. Correct as necessary.
Firebox
Frequency: Annually
By: Service Technician
Tools needed: Protective gloves, sandpaper, steel wool,
cloths, mineral spirits, primer and touch-up paint.
• Inspect for paint condition, warped surfaces, corrosion
or perforation. Sand and repaint as necessary.
• Replace appliance if fi rebox has been perforated.
Control Compartment and Firebox Top
Frequency: Annually
By: Service Technician
Tools needed: Protective gloves, vacuum cleaner, dust
cloths
• Vacuum and wipe out dust, cobwebs, debris or pet hair.
Use caution when cleaning these areas. Screw tips that
have penetrated the sheet metal are sharp and should
be avoided.
• Remove all foreign objects.
• Verify unobstructed air circulation.