
CONSUMER: READ AND SAVE THESE IMPORTANT INSTRUCTIONS
GENERAL HAZARD WARNING:
READ AND UNDERSTAND ALL OF THE INSTRUCTIONS IN THIS 
MANUAL BEFORE ASSEMBLING, STARTING, OR SERVICING 
THE HEATER. Be sure to comply with the instructions and warnings provided with this heater. 
Failure to comply can result in fire or explosion that can cause property loss, bodily injury, or 
loss of life. Only persons who can follow and understand these instructions should operate 
or service this heater. Persons who are impaired or under the influence of alcohol or drugs 
should not operate heater. If you need heater info; such as an operating manual, labels, 
etcetera, contact Pinnacle Climate Technologies at 800-641-6996.
NOT FOR USE IN RESIDENTIAL LIVING 
AREAS OR IN ENCLOSED SPACES WITHOUT 
ADEQUATE VENTILATION. THIS HEATER IS 
NOT FOR USE WHERE EXPOSED TO THE WEATHER, AND INDOOR 
USE ONLY IN WELLVENTILATED AREAS. INDOOR USE PERMITTED 
ONLY FOR: THE TEMPORARY HEATING OF ADEQUATELY VENTILATED 
BUILDINGS OR STRUCTURES UNDER CONSTRUCTION, ALTERATION 
OR REPAIR. This is an un-vented portable heater that uses air (Oxygen) 
from within the area in which it is used.  Failure to provide adequate 
combustion and ventilation air will result in asphyxiation, carbon monoxide 
poisoning, bodily injury or death. Refer to “Ventilation” on Page 6.
MODEL NUMBERS:
MH-80TBOA-OFR
Factory ID: 500
BATTERY OPERATED  
KEROSENE RADIANT HEATER
User’s Manual & Operating Instructions
Sauk Rapids, MN 56379 USA • Toll Free (800) 641-6996
Fax: 320-251-2922 • Web: www.masterindustrialproducts.com • Email: info@pinnacleclimate.com
© 2023 Pinnacle Climate Technologies, Inc.    MARE-409
Master is a registered trademark of Pinnacle Climate Technologies, Inc.
U.S. Patent No. 9,644,863
Locating Your Serial Number:
Your serial number can be found on a blue label on the left side cover. It will begin with the letter “S” 
followed by 9 digits. For Example: S160901126. Have your Serial Number ready before calling customer 
service at 800-641-6996.