MH9B Mr Heater Heater - Overview

Diagrams for MH9B

See every part. Know exactly what you need.

Page A

Parts for the MH9B

$18.30

Burner Tile

Part #73439

The burner tile is sold individually and has dimensions of 5.5"L x 4"W x 1"T.

$6.40

Gasket

Part #73433

This is an authentic Mr. Heater replacement part manufactured for use with heaters. The specialty gasket is used to form a seal between the burner and burner tile. It is recommended to replace the gasket when servicing the heater to ensure a proper seal when the parts are reassembled. This tile gasket is available as an individual replacement part.

$6.40

Clip, Burner Tile

Part #73429

The burner tile clip attaches to the ceramic burner tile. This item is available as an individual replacement part, but keep in mind that two may be needed. This part is an OEM from Mr. Heater for use in heaters. A screwdriver might be needed during the installation process. It is made of metal and will require replacing if it breaks.

$27.80

Regulator

Part #11410

This is an OEM direct from the Mr. Heater manufacturer. The regulator 11" wc precimex is constructed of metal and plastic components. This part is compatible with the MH9B Heater. This part is fitted between the inside frame and the regulation hold down. The regulator helps to keep heater lit and maintain consistent heat pressure. This it...Read more

Read less

$41.71

Pilot Assembly

Part #73404

Includes Thermocouple.

$6.45

Fuel Control Knob

Part #73418

This is an original Mr. Heater replacement item specially designed for use with a heater. It is used to control the functions of the unit. This is a simple red plastic knob and it is sold individually. To replace it simply pull off the old knob and secure the new one over the shaft.

Regulator 11" LP Chant

Part #11409

$6.40

Piezo Igniter

Part #73234

This item is available as an individual replacement part and is made of metal and plastic. The piezo igniter attaches to the ground wire and the igniter wire. A screwdriver and a set of pliers might be needed during the installation process. Over time this part may break and will need to be replaced. This is a Mr. Heater replacement part directly sourced from the manufacturer for use in heaters.

Handle Tube

Part #73452M

$11.12

Cover, Rear

Part #73424-I

$8.32

Plenum, Burner

Part #73458

Reflector, Burner

Part #73460

Questions And Answers for MH9B

Ask our experts a question about this model and we'll get back to you as soon as possible!

Sort by:

Charlscie - For model number MH9B

December 28, 2023

Heater will not stay ignited after it is initially lit.

Hi Charlscie, Thank you for your question. If your heater lights for about a minute and then shuts off, the pilot orifice may be clogged with a buildup of carbon. A buildup of carbon can restrict the flow of gas and prevent the pilot heating up the thermocouple. It is important to clean the pilot orifice on a regular basis. We hope this helps!

Was this helpful?

Doug - For model number MH9B

November 7, 2022

Is there a replacement for Chant 11409 regulator?

Hello Doug, ;thank you for your question. Using the model MH9B, there is a part 11410 that says The regulator 11" wc Precimex is constructed of metal and plastic components. This part is compatible with the MH9B Heater. This part is fitted between the inside frame and the regulation hold down. The regulator helps to keep heater lit and maintain consistent heat pressure. This item is sold individually. A screwdriver and an adjustable wrench are needed in the removal and replacement. We hope this helps!

Was this helpful?

Vaughn - For model number MH9B

October 17, 2025

Do you carry inline fuel filters?

Hi Vaughn, thank you for reaching out. Yes, the inline fuel filter for your model is part number PS10424856. We hope this helps.

$13.39

Fuel Filter Replace Annually

Was this helpful?