Mr. Heater MH18B User Manual

For Canada & Massachusetts Sale
CARBON MONOXIDE HAZARD
This appliance can produce carbon
monoxide which has no odor.
Using it in an enclosed space can kill you.
Never use this appliance in an enclosed
space such as a camper, tent, car or
home.
DANGER:
!
FOR YOUR SAFETY
If you smell gas:
1. Do not attempt to light appliance.
2. Extinguish any open flame.
3. Disconnect from fuel supply.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
PORTABLE PROPANE HEATER
USED FOR:
RECREATIONAL
AND COMMERCIAL
PORTABLE BIG BUDDY
RADIANT HEATER
READ INSTRUCTIONS CAREFULLY: Read and follow all instructions. Place instructions in a safe
place for future reference. Do not allow anyone who has not read these instructions to assemble,
light, adjust or operate the heater.
MH18B
OPERATING INSTRUCTIONS AND OWNERÊS MANUAL
Model #
Use only Mr. Heater branded accessories
(See page 10 for WARNING information)

Mr. Heater MH18B Specifications

General

Model	MH18B
Type	Portable Propane Heater
Fuel Type	Propane
Heating Area	450 sq ft
Dimensions	13.5 x 13.5 x 16 inches
Ignition	Piezo ignition
Safety Shut-Off	Yes
Coverage Area	450 sq ft
Safety Features	Oxygen depletion sensor, Tip-over switch
Heating Capacity	4, 000-18, 000 BTU/hr
Fuel Supply	1 lb propane cylinder (not included)

Summary

Product Introduction and Safety Precautions

Carbon Monoxide Hazard Warning

Highlights the danger of CO produced by the heater in enclosed spaces.

Gas Leak and Flammable Vapor Safety

Provides critical steps to take if gas is smelled and warns against flammable liquids.

General Safety Instructions

Appliance Operation and Placement Warnings

Details mandatory guard installation, avoiding food warming, and safe placement away from traffic.

Child and Surface Temperature Safety

Operating with Disposable Propane Cylinders

Cylinder Connection and Leak Check

Details how to connect 1 lb. cylinders and perform essential leak checks.

Heater Ignition and Control Knob Operation

Guides through the pilot lighting process and using the control knob for heat settings.

Safety Lockout and Fan Operation

Operating with Remote Propane Cylinders

Hose and Regulator Assembly Requirements

Specifies approved hose numbers, regulator settings, and connection procedures.

Refillable Cylinder Handling and Safety

Pilot Ignition and Heat Adjustment

Details the pilot lighting sequence and adjusting heat output via the control knob.

Shutting Down and Storage Procedures

Maintenance and Troubleshooting

Routine Heater Maintenance Procedures

Troubleshooting Spark and Pilot Issues

Provides steps for diagnosing and resolving problems with spark generation and pilot ignition.

Troubleshooting Ignition and Burner Problems

Offers solutions for pilot flame not staying lit and main burner ignition failures.

Third Party Attachments Notice

Prohibition of Non-Approved Attachments

Warning on Food Warming and Cooking

Construction Heater Operation Manual

Forced Air Heater Safety Warnings

Construction Heater Precautions and Specifications

General Hazard and Safety Warnings

Stresses compliance with instructions to prevent death, injury, or property damage.

Specific Use and Environmental Warnings

Construction Heater Operating and Safety Precautions

Heater Use and Propane Handling

Covers correct propane usage, cylinder mounting, and hose/regulator assembly.

Ventilation and Clearance Requirements

Gas Leak Detection and Response

Instructs on what to do if a gas odor is detected, emphasizing immediate action.

Odor Fade and Fuel Gas Safety

Asphyxiation Hazard and Ventilation

Odorant Recognition and Sensitivity

Immediate Action for Gas Leaks

Provides critical steps to take immediately upon smelling gas, including evacuation and contacting services.

Construction Heater Maintenance and Servicing

Pre-Use Inspection and Cylinder Disconnection

Storage Recommendations and Battery Care

Heater Functionality and Servicing Standards