1. Introduction and Overview
The Mr. Heater F232017 MH9BXRV Buddy Portable Radiant Heater is designed to provide efficient and safe heating for enclosed spaces up to 225 square feet. This versatile propane heater is approved for both indoor and outdoor use, offering a clean-burning operation with nearly 100% efficiency. Its compact design and fold-down handle make it highly portable for various applications, including RVs, tents, and workshops.
- Heating Capacity: 4,000 to 9,000 BTUs, suitable for spaces up to 225 sq. ft.
- Fuel Type: Propane. Connects directly to a 1 lb. cylinder.
- Safety Features: Equipped with an Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut-off.
- Portability: Features a fold-down handle for easy transport and storage.
- Versatility: Swivel regulator allows adaptation to a remote gas supply with an optional hose and filter.
2. Important Safety Information
WARNING: Read and understand all instructions and warnings in this manual before operating this heater. Failure to follow these instructions may result in fire, explosion, carbon monoxide poisoning, property damage, personal injury, or death.
- Ventilation: Always ensure adequate ventilation when operating the heater indoors.
- Altitude: Operating the heater at altitudes over 7,000 feet above sea level may cause the heater to shut off due to the Oxygen Depletion Sensor (ODS).
- Tip-Over Safety: The heater is equipped with an automatic shut-off if it is tipped over.
- Pilot Light: The heater will automatically shut off if the pilot light goes out.
- Oxygen Depletion: The ODS will shut off the heater if low oxygen levels are detected.
- Accessories: The use of unauthorized accessories or attachments with this heater is expressly prohibited, may cause serious injury, and will void the warranty.
- Clearance: Maintain proper clearance from combustible materials as specified in the manual.
3. Setup
Connecting a 1 lb. Propane Cylinder
To connect a 1 lb. disposable propane cylinder:
- Ensure the heater's control knob is in the "OFF" position.
- Screw the 1 lb. propane cylinder clockwise into the heater's regulator port until hand-tight. Do not overtighten.
- Check for leaks using a soapy water solution around the connection. Bubbles indicate a leak. Tighten if necessary or replace the cylinder if the leak persists.
For extended use, the swivel regulator allows connection to a remote gas supply (e.g., a larger propane tank) using an approved Mr. Heater hose and filter (sold separately).
Figure 3.1: Mr. Heater Buddy Portable Radiant Heater with a 1 lb propane cylinder attached, shown outdoors near an RV wheel.
4. Operation
Starting the Heater
To ignite the heater:
- Ensure the propane cylinder is securely attached.
- Rotate the control knob to the "PILOT" position.
- Push and hold the control knob down for 30-60 seconds to allow gas to flow and purge air from the lines.
- While holding the knob down, press the igniter button repeatedly until the pilot flame ignites.
- Continue to hold the control knob down for an additional 30 seconds after ignition to ensure the thermocouple is heated and the pilot flame remains lit.
- Release the control knob. If the pilot flame extinguishes, repeat the ignition process.
Adjusting Heat Settings
Once the pilot flame is stable:
- Rotate the control knob from the "PILOT" position to either "LO" (Low) or "HI" (High) to select the desired heat output.
- The radiant burner will begin to glow orange, indicating the main burner is active.
Shutting Down the Heater
To turn off the heater:
- Rotate the control knob to the "OFF" position.
- Allow the heater to cool completely before handling or storing.
- Always disconnect the propane cylinder when the heater is not in use or during storage.
Figure 4.1: A hand adjusting the control knob on the Mr. Heater Buddy Portable Radiant Heater.
5. Maintenance
Regular maintenance ensures safe and efficient operation of your Mr. Heater Buddy Portable Radiant Heater.
- Cleaning: Keep the heater's exterior clean. Use a damp cloth to wipe surfaces. Do not use abrasive cleaners or solvents.
- Burner and Pilot Assembly: Periodically inspect the burner and pilot assembly for dust, dirt, or insect nests. Clean gently with a soft brush or compressed air if necessary. Ensure all air openings are clear.
- Storage: Store the heater in a dry, well-ventilated area when not in use. Always disconnect the propane cylinder before storage.
- Inspection: Before each use, inspect the hose (if using a remote supply) and connections for any signs of wear, damage, or leaks.
6. Troubleshooting
If your heater is not operating correctly, refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater shuts off unexpectedly. | Low oxygen levels (ODS activated), tip-over switch activated, pilot light extinguished, or operating above 7,000 ft. altitude. | Ensure adequate ventilation. Check if the heater was tipped. Re-ignite the pilot. Note that operation above 7,000 ft. may cause shut-off. |
| Heater does not ignite. | No propane flow, igniter not sparking, or air in gas line. | Check propane cylinder connection and ensure it's not empty. Press igniter button firmly. Hold pilot knob down longer to purge air. |
| Weak or inconsistent flame. | Low fuel, clogged burner/pilot, or cold propane cylinder. | Replace cylinder. Clean burner/pilot. Warm cylinder if very cold (do not use external heat sources). |
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Mr. Heater |
| Model Number | F232017 |
| Special Feature | Portable |
| Color | Grey |
| Form Factor | Compact |
| Indoor/Outdoor Usage | Indoor |
| Product Dimensions | 8.3"D x 13.4"W x 15"H |
| Mounting Type | Floor Mount |
| Heating Coverage | 225 square feet |
| Burner Type | Radiant |
| Fuel Type | Propane |
| Number of Speeds | 2 |
| Item Weight | 1 pounds |
| Assembly Required | No |
| Batteries Required | No |
Figure 7.1: Dimensions of the Mr. Heater F232017 MH9BXRV Buddy Portable Radiant Heater.
8. Warranty and Support
This Mr. Heater product is covered by a manufacturer's warranty. For specific warranty details, duration, and terms, please refer to the warranty card included with your product or visit the official Mr. Heater website. Keep your proof of purchase for warranty claims.
For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact Mr. Heater customer service. Using unauthorized accessories or attempting repairs not described in this manual may void your warranty and pose safety risks.