CFM Corporation 2460, 2462, 2461 manual Yearly Spring Cleaning, Care of the Catalytic Combustor

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The Chimney Connector

TWO WEEKS:

Inspect the chimney connector and chimney. Clean if necessary.

TWO MONTHS:

Inspect the chimney and chimney connector. Pay particular attention to the horizontal runs of chim- ney connector, and the elbows. Clean the system if necessary.

Yearly Spring Cleaning

Disassemble the chimney connector and take it outdoors for inspection and cleaning. Replace weak sections of connector.

Inspect the chimney for signs of deterioration. Re- pairs to a masonry chimney should be made by a professional mason. Replace damaged sections of prefabricated chimney. Your local Dutchwest dealer or a chimney sweep can help determine when re- placement is necessary.

Thoroughly clean the chimney.

Care of the Catalytic Combustor

This wood heater contains a catalytic combustor, which needs regular inspection and periodic replacement for proper operation. It is against the law in the United States to operate this wood heater in a manner incon- sistent with operating instructions in this manual, or if the catalytic element is deactivated or removed.

Under normal operating conditions, the catalytic com- bustor should remain active for two to six years (de- pending on the amount of wood burned). However, it is important to monitor the combustor periodically to ensure that it is functioning properly, as well as to deter- mine when it needs to be replaced. A non-functioning combustor will result in a loss of heating efficiency, and an increase in creosote and emissions.

The combustor should be visually inspected “in place” for fly ash accumulation and physical damage three times per year. Actual removal of the combustor is not recommended unless a more detailed inspection is war- ranted because of diminished performance as outlined below.

The refractory package housing the catalytic combustor should be inspected annually for a build-up of fly ash and cleaned if necessary. This may be done during examination of the catalytic combustor.

Dutchwest

When to Suspect A Combustor Problem

There are two ways to evaluate the performance of your stove’s combustor.

The first is to monitor the temperatures on the probe thermometer. A properly-functioning combustor should operate in the range of 800-12000F. (430-650°C.). Combustor temperatures consistently less than 8000F. (430°C.) merit a closer examination of the combustor.

The second performance test is to observe the amount of smoke leaving the chimney — both when the com- bustor has achieved “light-off” and when it has not. Follow this simple two-step procedure:

With a fire in the stove and the combustor properly activated by the closing of the stove damper to route smoke through it as described in the Operation Section, go outside and observe the smoke leaving the chimney.

Then, open the stove damper and once again ob- serve the smoke leaving the chimney.

Significantly more smoke should be observed after the second step when the stove damper is open and ex- haust is not routed through the combustor. Be careful not to confuse smoke with steam from wet wood. Unlike smoke, steam disappears very quickly in air.

If either of these tests indicates a problem, consider other possible factors as well.

Assess Your Present Operating Conditions

In Spring or Fall, draft strength is less than in the middle of winter, and a related change in stove performance may result. Small hot fires are a good solution to slug- gish performance under these conditions.

Burning “green” (insufficiently seasoned) wood will re- sult in poorer performance than when burning properly seasoned fuel. Was your fuel supply good and dry to start with, or has it changed? You may have to run your stove hotter (more air) to achieve good performance if you are burning green or wet wood. Also, any changes in operating routine should be considered at this time as a possible reason for changed performance.

Once you have ruled out any other possible causes for a decline in performance, you may proceed with an inspection of the catalyst.

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Contents Convection Heater Model 2460, 2461 Table of Contents AccessoriesStove Model Number 2460 2461 2462 SpecificationsChimney Types InstallationMasonry Chimneys Two Types of Connector Guidelines for Installing the Chimney ConnectorSingle-Wall Connector Prefabricated ChimneysAssembling Single-Wall Chimney Connector Double-Wall ConnectorSecuring the Connector To a Prefabricated Chimney Toward Stove Flue Gas DirectionFreestanding Installations Securing the Connector to a Masonry ChimneyFireplace Installations Above the Fireplace Wall Pass-Throughs Fireplace Installations Through the FireplaceFloor Protection Fireplace InstallationsModel Canada Safe Ways To Reduce Clearances Keep the Stove a Safe Distance From Surrounding MaterialsModel Fireplace Installation ClearancesClearance Chart Reference Diagrams Designing a Safe InstallationRear exit, rear heat shield installations Stove Clearance Chimney Connector ClearanceFront Clearance to Combustibles Side Rear Corner Model 2460 Small Convection Chimney ConnectorWall Heat Shield Dimensions Unpack the Parts AssemblyAttach the Legs and Bottom Heat Shield Operation Heater Controls and Features Air ControlsLoad Doors Damper Function Burn Only High-Quality FuelSuccessful Wood Burning OpenPrimary Air Use the Air Control Settings That Work Best for YouCatalyst Air Break-in Fires How to Build and Maintain a Wood Fire Loading WoodLighting the Fire Reloading and Reviving the FireRemove Ashes Frequently Further suggestionsSafe Ash Handling Cleaning the Glass MaintenanceAdjust the Door Latch Test And Repair the Door GasketsPrimary Air Control Adjustment Damper AdjustmentRepair Missing Cement in Seams Avoid Damaging the Glass Door PanelInspect Regularly, Clean as Required Cleaning the Chimney SystemMaintenance Schedule Annual Spring CleaningWhen to Suspect a Combustor Problem Yearly Spring CleaningCare of the Catalytic Combustor Assess Your Present Operating ConditionsWatch for Better Results Remove and Inspect the CombustorCatalytic Combustor Draft Management Single Venting Draft TestingBackpuffing FuelItem/Description Dutchwest Convection HeaterDutchwest Convection Heater Warranty