Rasmussen C9B-RE-N
Rasmussen Chillbuster CoalFire Vent Free Fireplace Burner Assembly User Manual
Model: C9B-RE-N
Introduction
This user manual provides essential information for the safe and efficient operation, installation, and maintenance of your Rasmussen Chillbuster CoalFire Vent Free Fireplace Burner Assembly. Please read this manual thoroughly before installation or use and retain it for future reference. This appliance is designed to provide supplemental and emergency heat without requiring electricity.

Figure 1: Rasmussen Chillbuster CoalFire Vent Free Fireplace Burner Assembly. This image displays the main burner unit with its black metal housing and control knob, the ceramic-bonded coal chunks positioned on top of the burner, and the separate remote control and receiver unit.
Important Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
- This appliance is for use with Natural Gas only.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies.
- Children and adults should be alerted to the hazards of high surface temperatures and should stay away to avoid burns or clothing ignition.
- Young children should be carefully supervised when they are in the same room as the appliance.
- Clothing or other flammable material should not be placed on or near the appliance.
- This appliance is equipped with an Oxygen Depletion Sensor (ODS) for safe operation. Do not tamper with or disable this safety device.
- Ensure adequate ventilation in the room where the appliance is installed.
Product Overview
The Rasmussen Chillbuster CoalFire Vent Free Fireplace Burner Assembly provides the aesthetic of a traditional coal-burning fireplace with the convenience and efficiency of a gas system. Key components include:
- Burner Assembly: The core unit that produces the flame and heat.
- Ceramic-Bonded Coal Chunks: Designed for an authentic appearance, these are placed on the burner to simulate burning coals.
- Safety Pilot System: Ensures safe ignition and operation.
- Variable Flame Remote: Allows for convenient adjustment of flame height and heat output.
- Oxygen Depletion Sensor (ODS): A critical safety feature that monitors oxygen levels and automatically shuts off the unit if oxygen falls below a safe threshold.
Setup and Installation
Installation of this appliance must be performed by a qualified installer, service agency, or gas supplier. Failure to do so can result in fire, explosion, or carbon monoxide poisoning.
Pre-Installation Checks
- Verify that the appliance type (Natural Gas) matches your gas supply.
- Ensure the fireplace opening meets the minimum dimensions: 16.5 inches (W) x 7 inches (D) x 6.625 inches (H).
- Confirm that the installation location is suitable for a vent-free appliance and complies with all local codes and regulations.
Component Placement
- Carefully unpackage all components.
- Position the burner assembly within the fireplace opening. This unit is designed for a Wall Mount installation within a suitable fireplace enclosure.
- Arrange the ceramic-bonded coal chunks on the burner grate according to the manufacturer's instructions to achieve the desired realistic appearance. Ensure proper placement to avoid obstructing the pilot light or burner ports.
- Connect the gas supply line to the burner assembly. This connection must be leak-tested by a qualified professional.
- Install the remote receiver unit in a suitable location, typically near the burner, ensuring it is protected from direct heat and moisture.
After installation, a qualified technician must perform a thorough leak test and verify proper operation of the pilot and main burner.
Operating Instructions
Initial Start-Up
- Ensure the gas supply valve to the appliance is open.
- Locate the control knob on the burner assembly.
- Press and turn the control knob to the PILOT position. Hold for approximately 30 seconds to purge air from the line.
- While holding the knob in, press the igniter button repeatedly until the pilot flame ignites. Continue to hold the knob in for another 30-60 seconds after ignition to allow the thermocouple to heat up and hold the pilot flame. Release the knob slowly. If the pilot goes out, repeat the process.
Using the Variable Flame Remote
Your Chillbuster CoalFire system includes a variable flame remote for convenient operation.
- Once the pilot is lit, turn the control knob on the burner assembly to the ON position.
- Use the remote control to turn the main burner ON/OFF and adjust the flame height. Refer to the remote control's specific instructions for detailed button functions.
- The remote allows for precise control over the heat output, ranging from a minimum of 15,000 BTU to a maximum of 40,000 BTU.
Shutting Down the Appliance
- To turn off the main burner, use the remote control or turn the control knob on the burner assembly to the PILOT position.
- To completely shut off the appliance (including the pilot), turn the control knob to the OFF position. For extended periods of non-use, it is recommended to close the main gas supply valve to the appliance.
Maintenance
Regular maintenance ensures the longevity and safe operation of your fireplace burner assembly.
- Annual Inspection: It is recommended to have the appliance inspected annually by a qualified service technician. This includes checking gas connections, burner ports, pilot assembly, and the ODS system.
- Cleaning: Keep the area around the appliance clear of combustible materials. Periodically, gently brush off any dust or debris from the ceramic coals and burner ports when the unit is cool. Do not use abrasive cleaners.
- Coal Placement: Ensure the ceramic coals remain in their correct positions as per the installation instructions. Improper placement can affect flame patterns and efficiency.
- Pilot and Burner Ports: Keep pilot and burner ports clean to ensure proper ignition and flame characteristics. Use a soft brush or compressed air to remove any lint or dust.
- Remote Control: Replace batteries in the remote control and receiver unit as needed.
Troubleshooting
Before calling for service, review the following common issues and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pilot will not light or stay lit. | No gas supply; Air in gas line; Pilot orifice clogged; Thermocouple not heating properly; ODS system activated. | Check gas supply valve; Purge air from line by holding pilot knob longer; Clean pilot orifice; Ensure pilot flame engulfs thermocouple; Check for adequate ventilation. |
| Main burner will not ignite. | Pilot not lit; Control knob not in ON position; Remote control batteries low/dead; Remote receiver issue. | Light pilot first; Turn control knob to ON; Replace remote/receiver batteries; Consult a technician if issue persists. |
| Low flame or poor flame appearance. | Low gas pressure; Burner ports clogged; Improper coal placement. | Contact gas supplier to check pressure; Clean burner ports; Adjust coal placement according to manual. |
| Unit shuts off unexpectedly. | ODS system activation (low oxygen); Pilot flame extinguished; Gas supply interruption. | Increase ventilation; Relight pilot; Check gas supply. If ODS repeatedly activates, seek professional service. |
For issues not listed or if troubleshooting steps do not resolve the problem, contact a qualified service technician.
Specifications
| Specification | Value |
|---|---|
| Brand | Rasmussen |
| Model | C9B-RE-N |
| Power Source | Natural Gas |
| Product Dimensions (D x W x H) | 7" x 16.5" x 6.62" |
| Minimum Opening Dimensions (W x D x H) | 16.5" x 7" x 6.625" |
| Material | Metal |
| Finish Type | Painted |
| Installation Type | Wall Mount |
| Heat Output (Max) | 40,000 British Thermal Units (BTU) |
| Heat Output (Min) | 15,000 British Thermal Units (BTU) |
| Special Feature | Cordless (Remote Operation) |
| Color | Black |
| Item Weight | 21 Pounds |
| Burner Type | Ceramic |
| Included Components | Remote Control |
Warranty and Support
For specific warranty information regarding your Rasmussen Chillbuster CoalFire Vent Free Fireplace Burner Assembly, please refer to the documentation provided at the time of purchase or contact the retailer/manufacturer directly. Warranty terms typically cover defects in materials and workmanship for a specified period.
If you require technical support, service, or have questions not covered in this manual, please contact Rasmussen customer service or your authorized dealer. When contacting support, please have your model number (C9B-RE-N) and purchase information readily available.
Manufacturer: Rasmussen
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