Introduction
This manual provides essential information for the safe and efficient operation, setup, and maintenance of your Master MH-80T-KFA 80,000 BTU Kerosene/Diesel Portable Forced Air Heater. Please read all instructions carefully before using the heater to ensure proper function and to prevent injury or damage.
The Master MH-80T-KFA is a heavy-duty, versatile portable forced air heater designed for heating well-ventilated areas such as workshops, garages, and construction sites. It features a built-in thermostat and is capable of warming up to 2000 square feet.
Image: Master MH-80T-KFA 80,000 BTU Kerosene/Diesel Portable Forced Air Heater, yellow with black base and controls.
Safety Information
WARNING: Improper use of this heater can result in fire, explosion, carbon monoxide poisoning, electric shock, or serious injury. Read and understand all safety instructions before operation.
- Ventilation: This heater requires adequate ventilation. Always ensure proper fresh air supply to prevent carbon monoxide accumulation. Do not use in unventilated spaces.
- Fuel: Use only approved fuels: #1 & 2 Diesel Fuel, JP8/Jet A Fuel, and #1 & 2 Fuel Oil. Never use gasoline, paint thinners, or other highly flammable liquids.
- Clearances: Maintain minimum clearances from combustible materials. Refer to the product label for specific distances. Keep the heater away from curtains, paper, chemicals, and other flammable items.
- Electrical Connection: Connect the heater only to a properly grounded 120V AC outlet. Do not use extension cords unless they are rated for the heater's power requirements and are grounded.
- Operation: Never leave the heater unattended while operating. Do not move, handle, or refuel the heater while it is hot or running.
- Children and Pets: Keep children and pets away from the heater. The heater's surfaces become very hot during operation.
- 5-Point Safety System: This heater is equipped with a 5-Point Safety System, including high-temperature limit shut-off, flame-out fuel cut, and a thermocouple, designed to enhance operational safety.
- Carbon Monoxide: Carbon monoxide is an odorless, colorless gas that can cause death. Symptoms include headache, nausea, dizziness, and fatigue. If these symptoms occur, get fresh air immediately and seek medical attention. Consider installing carbon monoxide detectors in the area of use.
Product Overview and Features
The Master MH-80T-KFA heater is designed for robust performance and ease of use. Familiarize yourself with its components:
Image: Labeled diagram showing the Hot Air Outlet, Upper Shell, Handle, Fan Guard, Pressure Gauge, Fuel Gauge, Fuel Cap, Power Cord, Fuel Tank, Power/Reset Switch, Thermostat Knob, Lower Shell, and Side Cover Lamp.
Key Features:
- Thermostat Control: Built-in thermostat allows for precise temperature regulation.
- Multi-Fuel Capability: Operates on #1 & 2 Diesel Fuel, JP8/Jet A Fuel, and #1 & 2 Fuel Oil.
- Cold-Start System: Ensures reliable ignition in colder conditions.
- Durable Construction: Rigorously tested steel construction for longevity.
- Air Pressure Gauge: Provides visual indication of internal air pressure.
- Fuel Gauge: Allows monitoring of fuel levels.
- Portable Design: Equipped with a handle for easy transport.
Image: Close-up view of the air pressure gauge, displaying PSI and BAR measurements.
Image: Close-up view of the thermostat control knob, showing temperature settings in Celsius and Fahrenheit.
Setup
- Unpacking: Carefully remove the heater from its packaging. Inspect for any shipping damage. Report any damage to your retailer immediately.
- Placement: Place the heater on a firm, level, non-combustible surface. Ensure the heater is positioned at a safe distance from walls, ceilings, and all combustible materials as specified in the safety section and on the product label.
- Ventilation: Ensure the area is well-ventilated. Adequate fresh air supply is crucial for safe operation.
- Fueling: Fill the fuel tank with the appropriate fuel type (Diesel Fuel, JP8/Jet A Fuel, or Fuel Oil). Do not overfill. Always refuel outdoors and away from ignition sources.
- Electrical Connection: Plug the heater into a grounded 120V AC electrical outlet. Ensure the electrical circuit can handle the heater's power requirements.
Operating Instructions
Starting the Heater:
- Ensure the fuel tank is filled with the correct fuel.
- Plug the power cord into a grounded 120V AC outlet.
- Rotate the thermostat knob to the desired temperature setting.
- Press the Power/Reset switch to the 'ON' position. The heater should ignite within a few seconds.
- If the heater does not start, refer to the Troubleshooting section.
Adjusting Temperature:
Use the thermostat knob to set the desired ambient temperature. The heater will cycle on and off to maintain the set temperature.
Shutting Down the Heater:
- Rotate the thermostat knob to the lowest setting or 'OFF' position.
- Press the Power/Reset switch to the 'OFF' position.
- Allow the heater to cool down completely before unplugging or moving.
Maintenance
Regular maintenance ensures optimal performance and extends the life of your heater. Always unplug the heater and allow it to cool completely before performing any maintenance.
- General Cleaning: Keep the heater clean and free of dust and debris. Wipe exterior surfaces with a damp cloth.
- Fuel Filter: Check and clean the fuel filter regularly, especially if using lower quality fuels. A clogged fuel filter can affect performance.
- Nozzle Cleaning: If the heater experiences poor ignition or uneven flame, the fuel nozzle may need cleaning or replacement. This should be performed by a qualified technician if you are not comfortable doing so.
- Storage: When storing the heater for extended periods, drain the fuel tank completely to prevent fuel degradation and potential issues. Store in a dry, safe location.
Troubleshooting
If you encounter issues with your heater, consult the following table before contacting service.
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not start | No power, no fuel, thermostat set too low, clogged fuel filter. | Check power connection, ensure fuel tank is full, adjust thermostat, clean/replace fuel filter. |
| Heater starts then shuts off | Lack of ventilation, low fuel, safety shut-off activated, dirty nozzle. | Ensure adequate ventilation, check fuel level, allow heater to cool and reset, clean nozzle. |
| Poor heat output | Incorrect fuel, dirty fuel filter, improper air pressure. | Verify fuel type, clean fuel filter, check air pressure gauge and adjust if necessary (refer to service manual for adjustment). |
Specifications
Image: Diagram showing the dimensions of the Master MH-80T-KFA heater: 30 inches (width), 13 inches (depth), and 15 inches (height).
| Specification | Value |
|---|---|
| Brand | Master |
| Model Number | MH-80T-KFA |
| Heat Output | 80,000 BTU |
| Heating Coverage | 2000 square feet |
| Fuel Type | Diesel Fuel, JP8/Jet A Fuel, Fuel Oil |
| Voltage | 120 Volts |
| Max Temperature Setting | 90 Degrees Fahrenheit |
| Item Weight | 31 pounds |
| Product Dimensions (D x W x H) | 13" x 30" x 15" |
| Indoor/Outdoor Usage | Indoor (well-ventilated) |
| Mounting Type | Floor Mount |
| Certification | CSA Certified |
Warranty Information
The Master MH-80T-KFA heater comes with a 1-year limited warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact Master customer support.
Image: Logos indicating CSA certification and a 1-year limited warranty.
