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Master Manuals & User Guides

Master is a leading brand for professional-grade portable heaters, dehumidifiers, ventilation fans, and agricultural sprayers designed for industrial and commercial use.

Tip: include the full model number printed on your Master label for the best match.

Master manuals

Latest manuals from manuals+ curated for this brand.

MASTER MH-150NGT-GFA-A Natural Gas Forced Air Heater User Manual

February 25, 2022

MASTER MH-150NGT-GFA-A Natural Gas Forced Air Heater Locating Your Serial Number: Your serial number can be found on a white label on the right side cover of your heater. It…

MASTER MH-80-OFR Kerosene Radiant Heater User Manual

February 25, 2022

MASTER MH-80-OFR Kerosene Radiant Heater READ AND SAVE THESE INSTRUCTIONS Locating Your Serial Number: Your serial number can be found on a blue label on the left side cover. It…

MASTER MH-40-GFA Propane Forced Air Heater User Manual

February 25, 2022

PROPANE FORCED AIR HEATER User’s Manual & Operating Instructions MODEL NUMBERS: MH-40-GFA / MH-60V-GFA-A / MH-125V-GFA-A / MH-150V-GFA-A CONSUMER: READ AND RETAIN THESE INSTRUCTIONS FOR FUTURE USE Locating Your Serial…

MASTER MH-375T-GFA-A Propane Forced Air Heater with Thermostat User Manual

February 25, 2022

PROPANE FORCED AIR HEATER User’s Manual & Operating Instructions MODEL NUMBER MH-375T-GFA-A CONSUMER: READ AND SAVE THESE INSTRUCTIONS FACTORY ID: 500 Locating Your Serial Number: Your serial number can be…

MASTER MH-150T-SDR Silentdrive Forced Air Heater User Manual

February 25, 2022

SilentDrive® FORCED AIR HEATER User's Manual & Operating Instructions MODEL NUMBERS: MH-150T-SDR / MH-220T-SDR CONSUMER: READ AND SAVE THESE INSTRUCTIONS Locating Your Serial Number: Your serial number can be found…

MASTER MH-45-KFA Kerosene Forced Air Heater User Manual

February 20, 2022

MASTER MH-45-KFA Kerosene Forced Air Heater OVERVIEW DANGER GENERAL HAZARD WARNING: READ AND UNDERSTAND ALL OF THE INSTRUCTIONS IN THIS MANUAL BEFORE ASSEMBLING, STARTING, OR SERVICING THE HEATER. Be sure…

MASTER MH-222A-120 Electric Fan Heater User Manual

February 16, 2022

ELECTRIC FAN HEATER User's Manual & Operating Instructions Model Numbers MH-221A-120 / MH-222A-120 CONSUMER: READ AND SAVE THESE IMPORTANT INSTRUCTIONS Safety Information WARNING Read all instructions before using this heater.…

MASTER MH-16-TTC Propane Tank Top Heater Instruction Manual

February 16, 2022

MASTER MH-16-TTC Propane Tank Top Heater Locating Your Serial Number: Your serial number can be found in the bottom left hand corner of the heater’s instruction hang-tag. It will begin…

MASTER MH-515-120 Turbo Electric Fan Heater User Manual

February 7, 2022

MH-515-120 Turbo Electric Fan Heater User Manual Model Numbers MH-515-120/MH-53-240 CONSUMER: READ AND SAVE THESE IMPORTANT INSTRUCTIONS Locating Your Serial Number: Your serial number can be found on the heater’s…

MASTER MH-425A-240 Ceiling Mounted Electric Heater User Manual

January 30, 2022

MASTER MH-425A-240 Ceiling Mounted Electric Heater Model Numbers MH-425A-240 SAFETY INFORMATION Following these instructions will prevent difficulties that might occur during the installation and use of this heater. Studying the…