Monday, February 19, 2018

What does the catalytic combustor do?

Normally, smoke will burn, at a temperature of 1000 F. or higher. Burning a stove this hot would require continuous intense fire and would require a higher wood consumption.

The answer to eliminate this is the catalytic combustor.

Wood smoke gases coming in contact with the catalyst, causes chemical changes to take place. This will then allow the smoke to ignite at temperatures around 500 F. or (260 C.)

This temperature is easily achieved in the firebox of a wood burning stove.
As the wood gases ignite and burn within the catalytic combustor, clean by-products of water vapor (H2O) and carbon dioxide (CO2) are emitted. 

Thursday, February 15, 2018

Proof on the longevity of a FIRECAT










You will be given a prorated limited lifetime warranty from Applied Ceramics which states, Applied Ceramics warrants to the consumer who purchases a Firecat Versagrid catalytic converter as a component in an E.P.A. certified solid fuel appliance, to replace at no charge to the consumer the Versagrid catalytic converter that ceases to function within three (3) years from the date of purchase by the original consumer, providing we receive a dated copy of the original bill of sale for the stove, along with the original Firecat catalytic converter. Applied Ceramics also offers special prorated prices on the converter for the 4th, 5th and 6th years of the stove's life if ever needed.  They couldn't make this offer, if they had doubts about the longevity of the unit.


Thursday, February 8, 2018

FireCat™ Combustor Video Series©.

These topics can be viewed by clicking on the links found on the right hand side of this page under the title The FireCat™ Combustor Video Series©.



  •  Introduction to Applied Ceramics Inc. 
  •  Fundamentals of Catalytic Woodstoves©
  •  Troubleshooting Woodstoves Catalytic Combustors©
  •  Troubleshooting Catalytic Woodstove Systems©
  •  Catalytic Woodstoves.

Monday, February 5, 2018

If necessary clean the combustor

If it becomes necessary to clean the combustor, below are three recommended methods.





Normally the catalytic combustor requires little or no maintenance because it generates such high temperatures, it is basically self-cleaning. However, should the combustor become masked with soot or creosote, it is possible to burn the accumulation off by opening the bypass and building a hot fire. Once the hot fire is created, close the bypass halfway and burn for 30 to 60 minutes with the bypass left in this position.


Never use cleaning solvents to clean the combustor. It would be wise to check and clean the combustor, if necessary, before each burning season and inspect the flue system for any signs of creosote buildup.


A clean flue helps prevent chimney flue fires.

Thursday, February 1, 2018

Here's what to do if the combustor is not working properly …

-Check your fuel supply for moisture content. Fuel should be seasoned dried wood. Rain and snow are considered moisture and will produce damp smoke and steam. Both harmful to your combustor, especially when refueling and the combustor is burning hot.



 -Check the flue and chimney, making sure the stove’s exhaust system is not blocked nor has any obstructions.


-Make sure the stove is getting the proper draft.


-Check all movable stove parts to be sure they are working freely.


-Make sure the combustor has not fallen out of its holding device.

-Check the combustor for plugged cells. Follow cleaning instructions.



-Check if the combustor has been in the stove for more than six burning seasons, it might be time to replace it.

Be sure to follow the manufacture's instructions for proper firing. Different manufactures and stove models require different procedures.

As a rule of thumb, the catalytic combustor needs a minimum of 500 F. temperature focused on it for a period of 20 to 30 minutes to achieve light-off.  This is done with the bypass in the open position.

Nothing but heat will be going to the combustor at this stage. The catalyst will receive the heat it needs in this period of time.

Monday, January 29, 2018

What assurance do I have the catalytic combustor will last in my E.P.A. certified appliance?








 

You will be given a prorated limited lifetime warranty from Applied Ceramics which states, Applied Ceramics warrants to the consumer who purchases a Firecat Versagrid catalytic converter as a component in an E.P.A. certified solid fuel appliance, to replace at no charge to the consumer the Versagrid catalytic converter that ceases to function within three (3) years from the date of purchase by the original consumer, providing we receive a dated copy of the original bill of sale for the stove, along with the original Firecat catalytic converter. Applied Ceramics also offers special prorated prices on the converter for the 4th, 5th and 6th years of the stove's life if ever needed.  They couldn't make this offer, if they had doubts about the longevity of the unit.






Thursday, January 25, 2018

Read the labels on the woodstove.


All certified woodstoves offered for sale will have a permanent and a temporary label indicating that the stoves are EPA-certified. The temporary label will also contain information that you will find useful when shopping for a new stove.

The label will tell you generally how clean and how efficient each woodstove is. However, because regulations require all new stoves to burn much cleaner and more efficiently than unregulated woodstoves, there should not be significant differences in efficiency and emissions performance among the certified catalytic models. This holds true for the non-catalytic models as well.
The label will also indicate which stoves are equipped with catalytic combustors.

Perhaps the most important information on the label you will need when selecting a stove is the heat output range. Use this information to help select the right size stove for the space you will be heating.

Sample temporary labels:
 
 

Monday, January 22, 2018

Know your chimney








Modern, efficient appliances need modern, efficient chimneys. The selection, location and installation of the chimney is at least as important as the type of wood-burning appliance you choose. A properly designed and installed chimney will give many years of reliable service and will allow your appliance to perform properly. An effective chimney is an important part of any successful wood burning system. Many of the reported problems with the performance of wood burning appliances can be traced to chimney deficiencies of various kinds. Knowing how chimneys work is not only necessary in selecting the correct chimney and designing the installation, but is useful in the day-to-day operation of the appliance.

Chimneys operate on the principle that hot air rises because it is less dense than cold air. When a chimney is filled with hot gas, the gas tends to rise because it is less dense than air outside the house. The rising hot gas creates a pressure difference called draft which draws combustion air into the appliance and expels the exhaust gas outside. The hotter the gas compared to the air outside, the stronger the draft.

Thursday, January 18, 2018

Poor draft


Below are a few reasons for poor draft.

1. Top of the chimney is too low, not extending above the top of the pitched roof or surrounding trees.

2. Dirt, creosote or soot lodged in corners or along the flue walls.

3. Loose mortar or cracks in the brick-work cause draft leaks.

4. Spaces between liner tiles.

5. Dislodged bricks or tile wedged in the chimney.

6. Connecting stove pipe projects too far into the chimney.

7. Chimney clean-out door too loose.

8. Leaks around chimney connector pipe.

Monday, January 15, 2018

More information on back-puffing.


When the combustor has an exhaust temperature over 1400° F. (760° C.) it can act like a glow plug (spontaneous combustion igniter).
 
 
 
Usually the wood gas-to air mixture is either too lean or rich to form a highly flammable mixture. There are times when this mixture is just right within the firebox during the normal burning process.

If the combustor is running at or above the ignition temperature of the mixture, spontaneous combustion will result, causing the stove to vent puffs of smoke.

Thursday, January 11, 2018

Combustor replacement information


Please remember this very important information....

Cell density (16 or 25 cpsi) plus the combustor dimensions are both very important to the stove’s operation. The combustor's size and cell density was designed into the stove by the stove's manufacturer for best performance.


 
1. Open frontal area of the combustor is designed to receive the flow rate of the gases coming from the firebox.

2. The combustor’s size and cell density will control the residence time needed for the gases to burn within the combustor.

 
Always replace the stove’s combustor, when needed, with the original OEM combustor size and cell density for best efficiency and performance of the stove.

Monday, January 8, 2018

Need a replacement catalytic combustor?


Contact Applied Ceramics for fast and courteous service.
See my homepage for complete information on how to purchase any size for any model stove.
 


FIRECAT

 You will have Applied the best.