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MH50KR, MH75KTR, 
MH125KTR, MH175KTR, 
MH210KTR

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.

 —  Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any 

other appliance.

—  Service must be performed by a qualified service agency.

This is an unvented portable heater. It uses air (oxygen) from the area in which it is used. Adequate 
combustion and ventilation air must be provided. Refer to page 3.

KEROSENE  

FORCED-AIR HEATER

UL-733, &CSA/CAN3-B140.9.3

03/09  70202  Rev. A

MR. HEATER, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000

OpERATING INSTRuCTIONS 
AND OWNER’S MANuAl

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.

Model #

Starting Serial Number: SKu-09001001

Summary of Contents for 125KTR

Page 1: ...ed portable heater It uses air oxygen from the area in which it is used Adequate combustion and ventilation air must be provided Refer to page 3 KEROSENE FORCED AIR HEATER UL 733 CSA CAN3 B140 9 3 03...

Page 2: ...D USE OR SERVICE THIS HEATER IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN INSTRUCTIONS MANUAL LABELS ETC CONTACT THE MANUFACTURER WARNING FIRE BURN INHALATION AND EXPLOSION HAZARD KEEP SOLI...

Page 3: ...ns and instructions and of the hazards involved SAFETY PRECAUTIONS 1 Recommended for use with No 1 K kerosene fuel Factory tested for use with No 2 K kerosene No 1 or No 2 Diesel No 1 or No 2 fuel oil...

Page 4: ...ater from power source MH75KTR MH125KTR MH175KTR MH210KTR Push On Off switch to Off position For extended shutdown unplug heater from power source RESTART AFTER SAFETY SHUTDOWN MH50KR MH75KTR MH125KTR...

Page 5: ...solid object to remove contaminates Compressed air or liquids should not be used to clean this filter Reinstall cleaned filter in filter body in the same position as it was when removed If the filter...

Page 6: ...wing troubleshooting guide for unit status and corrective action if necessary SYMPTOM TROUBLE SHOOTING High limit switch Open Circuit 1 Make sure heater is cooled off toggle switch to OFF position wai...

Page 7: ...SET MOTOR CAPACITOR CIRCUIT BOARD 18AWG YELL 18AWG YELL 18AWG RED 18AWG RED 18AWG WHT 18AWG BLK 18AWG GRN 18AWG PURPLE 18AWG PINK 18AWG PINK 1 2 3 4 5 6 18AWG PURPLE THERMOSTAT 18AWG BLUE 7 8 ELECTR0...

Page 8: ...ert 19 26898 26898 26898 26898 Receptacle 110V 20 22104 22104 22104 22104 AC Receptacle Cover 21 26833 26833 26833 26833 26833 Air Pump Cylinder 22 21810 21810 21810 21810 21810 Outlet Housing 23 2181...

Page 9: ...ions and Owner s Manual Kerosene Forced Air Heater Model MH50KR MH75KTR MH125KTR MH175KTR MH210KTR 1 2 3 4 5 6 7 9 10 1 1 13 14 15 16 17 18 19 20 21 24 25 Filter Kit 26 53 28 29 30 31 32 34 35 36 37 3...

Page 10: ...dealer or direct from the factory FOR INFORMATION REGARDING SERVICE Please call Toll Free 800 251 0001 www mrheater com Our office hours are 8 30 AM 5 00 PM EST Monday through Friday Please include t...

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