Lennox Hearth II-T C INS, II-T C FS Rain Cap, Clean-OutTee Remove cover, then remove ash

ROUTINE MAINTENANCE

EXHAUST PASSAGES AND VENT PIPE (All Models) Inspect frequently and clean when necessary. Fly ash will accumulate at all bends in the exhaust system. Note: Large amounts of fly ash build-up will create a lack of combustion air. Removing the clean out tee cap on verti- cal installations will allow an inspection of the ash build- up in the clean out tee and will help you to decide how frequently more extensive cleaning must be performed.

Clean-Out Tee Rain Cap

Clean-Out Tee

Remove cover, then remove ash

Minimum Frequency of 1-2 months

DOOR ROPE GASKET (All Models)

The condition of the rope gasket around the door and windows should be checked periodically and replaced or repaired if necessary. A one-inch strip of paper may be used to perform a test of the integrity of the door seal. Close the door on the paper in at least eight points (see illustration, “Door Rope Gasket”). It is normal to feel only a slight amount of friction. The door gasket does not need to be “tight” in all areas, since a small amount of leakage is not hazardous or detrimental to the perform- ance of your stove.

Door Rope Gasket

(check seal at points indicated by arrows)

Minimum Frequency of 3 months to 1 year

Visually inspect gasket often. If it becomes frayed or damaged it should be replaced.

CREOSOTE REMOVAL

When wood is burned slowly, it produces tar and other organic vapors, which combine with expelled moisture to form creosote. The creosote vapors condense in the relatively cool chimney flue of a slow-burning fire. As a result, creosote residue accumulates on the flue lining.

When ignited this creosote makes an extremely hot fire. The chimney connector and chimney should be in- spected at least once every two months during the heat- ing season to determine if a creosote buildup has oc- curred.

If creosote has accumulated it should be removed to re- duce the risk of a chimney fire.

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