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Heatmaster HM2-MAN - User Manual

Heatmaster HM2-MAN
24 pages
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UNVENTED (GAS LOG) ROOM HEATER
INSTALLATION AND OPERATING INSTRUCTIONS
This heater is equipped with a PILOT LIGHT SAFETY SYSTEM designed to turn off the heater
if not enough fresh air is available.
Models HM2-MAN, HM2-T and HM2-MIL-18”, 24” and 33” Burner Units
with HM2-RO and HM2-SO Log Sets
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
WHAT TO DO IF YOU SMELL GAS
+ Do not try to light any appliance.
+ Do not touch any electrical switch; do not use any phone in your building.
+ Immediately call your gas supplier from a neighbor’s phone. Follow the gas
supplier’s instructions.
+ If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
WARNING: Improper installation, adjustment, alteration, service or
maintenance can cause property damage, personal injury or loss of life. Refer to
this manual for information. Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
16-1010 (04/01)
This is an unvented gas-fired heater. It uses air (oxygen) from the room
in which it is installed. Provisions for adequate combustion and
ventilation air must be provided. Refer to page 5 of these instructions.
This appliance is for supplemental heating only. It should not
be used as a primary heat source for a dwelling.
DO NOT TAMPER WITH PILOT LIGHT SAFETY SYSTEM
WARNING: If the information in this manual is not followed exactly, a fire or explosion
may result causing property damage, personal injury or loss of life.

Questions and Answers

  • J
    jwilliamsAug 12, 2025
    How to fix low battery power in Heatmaster Indoor Fireplace remote?
    • S
      Stephen LeeAug 13, 2025
      If your Heatmaster Indoor Fireplace remote has low battery power, the batteries are likely weak and need to be replaced.
  • J
    Jason SimonAug 17, 2025
    What to do if Heatmaster HM2-MAN module beeps constantly?
    • K
      Keith WilsonAug 17, 2025
      If your Heatmaster Indoor Fireplace module beeps constantly, it could be due to a system cycle off and back on within 30 seconds. To resolve this, cycle the system to off and wait 30 seconds before relighting. Another potential cause is a loose ground wire, so ensure that the ground wire is tight.
  • K
    Kaylee SmithAug 21, 2025
    Why is there smoke and odor coming from my new Heatmaster Indoor Fireplace?
    • A
      Aimee MarshAug 21, 2025
      The slight smoke or odor during the initial operation of your Heatmaster Indoor Fireplace is likely due to residues from manufacturing processes and logs curing. This issue should resolve itself after a few hours of use.
  • M
    Mrs. Sandra Kramer DDSAug 26, 2025
    What does it mean when my Heatmaster Indoor Fireplace module beeps 4 times?
    • S
      shanetaylorAug 26, 2025
      If the module of your Heatmaster Indoor Fireplace beeps 4 times every 2 seconds, it indicates that the module's internal temperature has exceeded 170 degrees. To fix this, cycle the system to off and allow the module to cool below 160 degrees.
  • W
    watkinsAug 30, 2025
    What does it mean when Heatmaster Indoor Fireplace module beeps twice per second?
    • E
      ethanbrownAug 30, 2025
      If your Heatmaster Indoor Fireplace module beeps twice per second, the pilot has likely been proven and then lost up to 3 times without being reset. The module will beep for 5 minutes. Place the switch in the off position once the beeping has stopped, then reset it to on.
  • P
    Patrick BeasleySep 3, 2025
    Why is my Heatmaster HM2-MAN beeping once per second?
    • G
      Gregory ReillySep 3, 2025
      If the module of your Heatmaster Indoor Fireplace beeps once per second, it indicates that the pilot did not light within the trial period. To resolve this, cycle the on/off switch or remote to off, then reset to on.
  • L
    lisa78Nov 7, 2025
    Why is the pilot sparking but not igniting on my Heatmaster HM2-MAN Indoor Fireplace?
    • P
      phillipsmichaelNov 7, 2025
      If the pilot sparks but doesn't ignite on your Heatmaster Indoor Fireplace, several factors could be at play. First, ensure the gas supply is on and the equipment shutoff valve is open. Air in the gas lines can also prevent ignition; try turning the burner system on and off repeatedly to remove the air, which may take several attempts. Check the thermocouple connections at both the control valve (hand tight plus 1/4 to 1/2 turn) and the control module. Also, verify gas flow to the ODS pilot and ensure all shut-off valves are open, checking that the pressure supplied to the valve is correct. A depleted LP gas supply or a disconnected/broken valve cable could also be the cause, ensure that the valve cable is correctly connected. The ODS pilot might be clogged, in which case you should clean ...

Heatmaster HM2-MAN Specifications

General IconGeneral
ModelHM2-MAN
CategoryIndoor Fireplace
BrandHeatmaster
Heating CapacityUp to 1, 500 sq ft
Firebox MaterialSteel

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