Kuma Stoves K-300, K-400 manual Section E- Achieving and Maintaining Catalyst Light-Off

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Section E- Achieving and Maintaining

Catalyst Light-Off

Your KUMA stove is equipped with a by-pass plate that slides forward to allow the draft to escape up the chimney when the rod is pulled all the way forward. This “by- passes” the combustor for the purpose of (1) starting a fire, and (2) refueling. This section describes the position of the by-pass for 3 different burning situations.

1)START-UP:The by-pass rod would be pulled all the way out during start-up. It will remain open long enough to achieve a medium to high burn rate (about 15-20 minutes). It will also be necessary to “crack” the door to allow extra air during start-up. Check Operation Section ‘H’. Usually a normal fire start-up to produce a good coal bed will produce sufficient temperatures to begin catalytic combustion.

2) NORMAL OPERATION: After the start-up temperature is reached, the by-pass should be closed (pushed in). This begins the flow of smoke and gases through the combustor. The combustor will begin generating. The by-pass is to remain closed during normal operation.

3)REFUELING: The by-pass should be open (pulled out) during the refueling of the stove. When refueling or rekindling a cool fire or a fire that has burned down to the charcoal phase, operate the stove again at a medium to high burn rate (about 15-20 minutes) until a sufficient start-up temperature is reached.

Section F– Catalyst Monitoring

It is important to periodically monitor the operation of the catalytic combustor to ensure that it is functioning properly, and to determine 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. Following is a list of items that should be checked on a periodic basis:

*Combustors should be visually inspected at least three times during the heating season to determine if physical degradation has occurred. Actual removal of the combustor is not recommended unless more detailed inspection is warranted because of decreased performance. If any of these conditions exist, refer to Catalyst Troubleshooting Section ‘G’ in this owner’s manual.

*You can get an indication of whether the catalyst is working by comparing the amount of smoke leaving the chimney when the smoke is going through the combustor and catalyst light-off has been achieved, to the amount of smoke leaving the chimney when the smoke is not routed through the combustor (by- pass mode).

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Contents Kuma Stoves Section D- Fuel Selection Section A- Stove Description and ComplianceSection B- Tamper Warning Section C- Catalyst InformationSection F- Catalyst Monitoring Section E- Achieving and Maintaining Catalyst Light-OffSection G- Catalyst Troubleshooting Section H- Operation and MaintenanceSymptom Problem Remedy See for Locations of Gasket Section I- Catalyst ReplacementAchieving Proper Draft Section J- Stove Maintenance WarningsSection K- Proper Draft Information Disposal of AshesChimney Refer to figure Installation Instructions Section L- Installation InstructionsPreliminary Checks Section M- K-300 Fireplace Insert Installation InstructionsAttaching the faceplate Section M- K-300 Installation Instructions …Limited Lifetime Warranty Section N- WarrantySection O- Figures 1-5 Typical Home Installation

K-400, K-300 specifications

Kuma Stoves has built a reputation for delivering high-quality wood stoves that combine efficiency, longevity, and aesthetic appeal. Among their impressive lineup, the K-300 and K-400 models stand out for their advanced features and innovative technologies, making them popular choices for those looking to add an efficient heating solution to their homes.

The Kuma Stoves K-300 is designed for small to medium-sized spaces, offering a compact yet powerful heating option. One of its main features is the high-efficiency burn technology, which maximizes heat output while minimizing emissions. This stove is equipped with a secondary combustion system that ensures the fuel is burned thoroughly, resulting in fewer particulates released into the atmosphere. The K-300 also boasts an impressive heat output range, providing warmth in even the coldest climates.

In contrast, the K-400 is engineered for larger spaces, providing an extra boost of heat with its higher capacity. This model is known for its robust construction, featuring a heavy-duty steel plate body that enhances durability and lifespan. Similar to the K-300, the K-400 utilizes advanced combustion technology, optimizing the use of wood fuel and enhancing efficiency. It's designed with a large firebox, allowing for longer burn times and accommodating larger logs, which translates to fewer refueling interruptions.

Both models incorporate Kuma's distinctive Air Control System, allowing users to easily adjust the airflow for more precise temperature regulation. This feature not only enhances user convenience but also plays a critical role in maximizing combustion efficiency.

Aesthetically, both the K-300 and K-400 showcase a modern design, featuring a large glass door that offers an unobstructed view of the fire, enhancing any living space's ambiance. The stoves are also available in various finishes to match different decor styles.

Environmentally conscious consumers will appreciate that both models meet stringent EPA certification standards, ensuring that they burn cleanly and efficiently. With their blend of technology, craftsmanship, and style, Kuma Stoves' K-300 and K-400 models represent an ideal choice for anyone looking to add a reliable and effective wood heating solution to their home. Whether you have a smaller space or a larger area to heat, these stoves deliver performance without compromising on aesthetics or environmental responsibility.
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