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Heatmaster C-150 - User Manual

Heatmaster C-150
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C-150, C-250, C-375, C-500, C-800
OPERATION AND MAINTENANCE MANUAL
Model:
By SteelTech Inc.
Version 2
Serial No.:
UL 2523-2009
UL 391 (1995)
CAN/CSA B366.1-M91

Table of Contents

Questions and Answers

  • S
    Stephen AndersonAug 12, 2025
    What to do if Heatmaster C-150 Furnace water is hot but buildings have no heat?
    • J
      johnsonstevenAug 12, 2025
      If your furnace water is hot, but your buildings aren't getting heat, here are a few things you can check: * Make sure all pumps in the system are running. * Check the filter cartridge for any flow blockages, if one is installed. * Bleed off any air that may be in the system at the exchanger. * Make sure there are no closed valves that are preventing water flow. * Check the temperature of the water as it exits the furnace, enters the building, and before and after each heat exchanger.
  • T
    Traci MarksAug 20, 2025
    What to do if Heatmaster Furnace overheats?
    • M
      Madeline MooreAug 20, 2025
      If your furnace is overheating, you should check the following: * Ensure all doors are closing properly and that the door gasket is completely sealing. * Verify that the solenoid damper plate is opening and closing smoothly. * Inspect the venting and fan box for air leaks. * Confirm that the temperature settings are correct. * Check the chimney draft. * Check the water level. * Ensure the door and ash drawer are airtight. * Make sure all pumps in the system are running.
  • J
    joseph05Aug 25, 2025
    Why did my Heatmaster C-150 Furnace shut down?
    • W
      William JohnsonAug 25, 2025
      If your furnace has shut down, you can try the following: * Check to ensure that the unit has power. * Check to ensure the Furnace On/Off switch is in the On position. * Check the water temperature (furnace has a high temperature cut out of 190 degrees F. and turns on again at 140 degrees).
  • D
    David DonovanAug 27, 2025
    How to fix smoke leaking out of Heatmaster C-150 door?
    • S
      sheryl46Aug 27, 2025
      If smoke is leaking out of the furnace door: * Check to ensure the door is sealing properly. * If the seal is worn out it will have to be replaced. * The door may need to be adjusted.
  • M
    Miss Tammy LopezAug 31, 2025
    What to do if there is a power failure with my Heatmaster Furnace?
    • T
      Thomas LewisAug 31, 2025
      In the event of a power failure with your furnace: * Open all flow-check and zone valves in the system. * Remember that the heating systems cannot dispose of a great deal of heat without the circulator(s) running. Avoid over-firing! * When the power has returned, reset all flow-check and zone valves and resume normal operation of the system.
  • N
    Nancy GuzmanSep 4, 2025
    Why do I have to refill my Heatmaster C-150 Furnace with water so often?
    • K
      Kimberly HenrySep 4, 2025
      If you're having to fill the furnace with water more then once a week or more then a few gallons of water per week and there is no obvious explanation: * Check the temperature settings and gasket on the door and ash drawer to ensure the furnace is not over temperature and steaming. * Check the perimeter of the furnace for water puddles collecting or dripping from the furnace. * Check all plumbing in the system to ensure there are no leaks.
  • P
    pcarrSep 7, 2025
    What to do if there is a chimney fire with my Heatmaster C-150?
    • K
      Kyle BooneSep 8, 2025
      If there is a chimney fire: * Make sure the firebox and ash pan doors are tightly closed. * Close all combustion air inlets on the furnace.
  • S
    Scott VaughnNov 15, 2025
    What to do if Heatmaster C-150 Furnace is running but water is not heating up?
    • A
      Allison AllenNov 15, 2025
      If your furnace is running but the water isn't heating up to the correct temperature, consider the following troubleshooting steps: * Check the fire. * Verify the fan is operating correctly. * Ensure the solenoid damper and fanbox elbow are open to allow air injection. * Confirm the furnace is appropriately sized for the heat demand. * Check the fuel type, as poor quality fuel provides fewer BTUs. * Verify the furnace water level. * Inspect the chimney and bypass trough for ash and creosote blockages. * Check the temperature settings, ensuring the high temperature setting is at least 165 F. * Confirm the furnace has power. * Ensure all pumps in the system are running. * Check for leaks or breaks in the pipes or fittings. * Check the temperature of the water exiting...

Summary

Limited Lifetime Warranty

Water Treatment and Testing

Safety Precautions

Chimney

Furnace Installation Guide

Location

Guidelines for selecting the furnace installation site.

Furnace Foundation

Requirements and recommendations for creating a stable furnace foundation.

Trench

Specifications and considerations for digging trenches for water lines.

Wiring

Electrical wiring requirements and connection points for the furnace.

Hydronic Lines

Guidelines for installing hydronic (water heating) lines.

Furnace Connection

How to connect the furnace to the heating system.

Interior Connections

Water-To-Water Heat Exchangers

Information on using water-to-water heat exchangers with the furnace.

Flat Plate Exchanger For Pressurized Systems

Using flat plate exchangers with pressurized heating systems.

Domestic Hot Water

Using exchangers to pre-heat domestic hot water.

Forced Air Furnace (Water-To-Air Exchanger)

Installing water-to-air heat exchangers for forced air systems.

Operating the Furnace

How It Works

Explanation of the C Series furnace's operational principles.

Filling the Furnace with Water

Procedure for filling the furnace with water and checking levels.

Firing the Furnace

Instructions and precautions for starting and maintaining a fire.

Loading

Guidelines for loading fuel into the furnace for optimal burning.

Cleaning and Removing Ash and Clinkers

Procedures for removing ash, clinkers, and maintaining the fire.

Care and Maintenance

Controls and Safety Devices

Troubleshooting

Electrical Schematic Ranco Control

Electronic Temperature Control Settings & Specifications

Electronic Timer Control and Settings

Unit Footprints

Replacement Components List

Heatmaster C-150 Specifications

General IconGeneral
BrandHeatmaster
ModelC-150
CategoryFurnace
LanguageEnglish

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