Cleaning and Maintenance Instructions

ALWAYS REMEMBER:

1.Do not place any combustible material near the appliance.

2.Do not place any paper, trash or other material on the log set or in the heater.

3.Do not touch any part of the appliance when the unit is in operation.

Your heater is designed to be virtually maintenance free, although periodic visual inspection and cleaning is required. Follow the instructions below for the correct procedures.

If at any time the flames on your log set look abnormal or an odor is noticed that coming from the appliance, contact a qualified service technician or the gas company.

Periodically, visually inspect the main burner flames as well as the pilot flame. The appearance of these flames should resemble the drawings on page 11 (FIG. 5 and FIG. 6 or FIG. 7). Any measurements are approximate. Flame heights may vary.

To ensure that your unit operates at peak performance, inspect and clean it at least monthly during the heating season by following the guidelines below. More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etc. It is imperative that control compartments, burners and circulating air passageways of the appliance be kept clean.

CAUTION: Before cleaning the appliance, be sure it is turned completely off. The pilot should also be turned off. The unit must be completely cooled.

DO NOT USE ANY CLEANING FLUIDS OR TOOLS FOR CLEANING PURPOSES

1.Remove front screen.

2.Remove logs from front assembly and place on the floor close to the heater.

3.Lightly vacuum any loose particles or dust from the grate and burner. Pay close attention to the air opening at the beginning of the main burner. This opening is located at the point of the main burner where the gas line from the control valve is attached. This opening must remain free of any obstruction.

4.Lightly vacuum any loose particles or dust from the pilot flame area, being sure not to touch any part of the pilot with the vacuum.

5.Lightly vacuum any dust from the logs.

6.Carefully replace logs on the grate assembly and relight the pilot as stated in this instruction manual.

NOTE: If any of the appliance parts are hit with the vacuum during cleaning, a gas leak could occur. If this happens, be sure to check for leaks as described on page 6 of this instruction manual.

FAN MOTOR LUBRICATION

+It is recommended by the manufacturer that the fan motor be re-lubricated every six (6) months.

+Use six (6) drops of a #20 non-detergent oil when re-lubricating.

1.Unplug the heater from the electric wall outlet.

2.Remove the fan cover from the back of the heater.

3.While looking at the back of the heater, notice the notch that is punched in the end of the motor at the 2 o’clock position. This notch is also punched at the other end of the motor in the same position.

4.Notice the location of the motor brackets, because the motor must be re-installed exactly as

you remove it.	10

HMDGII, HMDGJ specifications

Heatmaster has established itself as a leader in high-performance outdoor wood-burning furnaces, with the HMDGJ and HMDGII models exemplifying their commitment to quality and innovation. Both units are designed to provide efficient, environmentally friendly heating solutions for residential and commercial applications, each with its unique features and advanced technology.

The HMDGJ model is known for its robust construction and user-friendly design. It features a unique "Dual Feed" system, allowing for the use of various fuels, including wood, pellets, and biomass, providing versatility and convenience for users. This model is equipped with a high-efficiency heat exchanger, which maximizes heat transfer while minimizing emissions, ensuring that more heat reaches your home and less escapes into the atmosphere. The HMDGJ also incorporates a state-of-the-art control system, allowing users to easily adjust settings and monitor performance through a digital display, making it an ideal choice for those who appreciate modern technology.

On the other hand, the HMDGII model boasts enhanced insulation and a larger firebox, which significantly increases the furnace's heating capacity. This model is perfect for larger properties or applications where high heat demand is essential. The HMDGII is designed with a high-temperature rating, allowing it to burn hotter for longer periods, which translates into less frequent refueling and increased efficiency. Similar to the HMDGJ, the HMDGII also features a digital control system that provides real-time data on temperature, fuel levels, and overall efficiency, enabling users to optimize performance effortlessly.

Both models are built with heavy-duty steel construction and are coated with high-temperature paint to resist corrosion and weathering, ensuring longevity and durability in outdoor settings. They also come equipped with user-friendly access doors for easy loading and maintenance.

With the Heatmaster HMDGJ and HMDGII, you can expect superior performance and reliability. Their commitment to efficiency not only reduces fuel usage but also minimizes environmental impact, making these furnaces a responsible choice for conscientious users. Whether for residential heating or larger commercial needs, Heatmaster’s HMDGJ and HMDGII provide innovative solutions that combine technology, efficiency, and ease of use for optimal heating comfort.