Harman Stove Company SF-150 SF-250 manual Preventive Maintenance Instructions

than 8 inches of brickwork or equiv- alent fireproofing material.

C.Where all combustible material is cut out of the partition wall for a sufficient distance to provide not less than 18 inches clearance on all sides of the connector. Any material used to close this opening must be non-combustible insulating material.

D.Where the section of connector pipe passing through the wall is replaced by a properly installed sec- tion of factory-built chimney, the chimney section must be listed for solid fuel use and be insulated.

Where an existing chimney is used, it must be large enough to provide a draft adequate for exhausting the gaseous products of combustion. The cross-sectional area of the chimney flue should be at least 25 percent greater than that of the chimney connector (stovepipe). For example, the common 8 inch by 8 inch chimney flue liner has an actu- al interior cross-sectional area of only 49 square inches (7" x 7") and, thus, can only accommodate a 7" stove connector.

10.Preventive Maintenance Instructions

10.1Periodic and Normal Everyday Maintenance

Blower Motor - Oil twice yearly. Grates - Keep ash drawer emptied. Failure to do this may cause grates to warp.

CAUTION! BEFORE CLEANING CHIMNEY AND SMOKE PIPE BE SURE FIRE IS OUT AND INSIDE OF STOVE IS COOL.

Cleaning The chimney, Smoke Pipe and Spiral Chamber.

Avoid chimney fires. On a regular schedule, check for creosote and soot buildup in the chimney, smoke pipe and spiral chamber. They must be kept clean. Keep a professional chimney sweep in mind if you have access to one.

Steel brushes are the safest for cleaning metal surfaces. Salt solu- tions and some chemicals may dam- age metal surfaces. Do not overfire your stove. Do not burn anything that combusts in seconds. Excessive

flue temperatures may result there- by igniting creosote.

To clean the chimney, obtain a stiff brush with an extendible handle and insert the brush into the chimney from the top. Continue the brushing and sweeping downward until the entire length of the chimney is cleaned.

After cleaning the chimney, the debris will be at the bottom of the chimney at the clean-out opening. Open the clean-out door and sweep the debris out into a metal contain- er.

The smoke pipe from the stove to the chimney can be cleaned with a steel brush.

Cleaning of Spiral Chamber - To clean spiral chamber remove cleanout plate in front of chamber by using a 3/4" wrench to turn the bolt counter-clockwise two turns and slide plate sideways about 1" and remove. Take putty knife or similar tool and scrape accumulated residue from the spiral chamber. The residue will fall down to the bot- tom of the chamber and can be removed from the flue opening in back of the stove by means of a vac- uum cleaner or a small scoop.

Figure 5: Connecting Smokepipe (connector) to Chimney Through Wall.

Two methods of connect- ing a chimney connector to a chimney flue where the connector must pass through a combustible par- tition wall. Instead of the asbestos board shown, sheet metal may be used, or a metal lath and plaster finish may be applied at that area. Use 24 gauge or heavier metal. Clearance needed is three times the diameter of stovepie.