Easy
Less than 15 minutes
This is an authentic Mr. Heater replacement part that has been sourced from the original manufacturer to be used with portable propane heaters. The plastic control knob attaches to the valve control stem and is used as a grip when adjusting the valve. This item is available as an individual replacement part.
Control Knob 78418
OEM part for: Mr. Heater
Part Number: 78418
$4.99
In Stock
Ships within 1 business day 
Compatibility
This part will fit the following 1 machine
Mr. Heater
MH18B Portable Propane Heater View Diagrams & Manuals
This item works with the following types of products:
- Heater Parts
Customer Part Reviews ?
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Part works as expected.
Quick and easy delivery of part.Highly recommend this company.
Guest -
January 12, 2022
Verified Purchase
Mr. Heater replacement knob P/N 78418
This part didn't work for my Mr. Heater gas. I couldn't find the exact same knob that looked like the one I needed to be replaced. I ended going on Mr. Heater actual website and found the exact knob I'll need. They were closed on the weekend so I'm calling this morning. The part #80006. I ordered 3 sending the other two back. To make the one knob I received from this company work, I had to drill down the opening far enough until it fit the metal connection on my heater. It stands up high but it'll do until I get the part that goes with the Mr. Heater gas heater.
Guest -
October 25, 2022
Verified Purchase
This part matched the part number on my propane heater but did not fit the hole. I cut original hole with Drexel to make it fit. The center hole was too small to fit the heaters control mechanism so had to make the replacement parts center hole bigger also with Dremel. All numbers are the same so it wasnt an error in ordering. It works fine now after all the alterations.
Replacement control knob for Mr. Heater.
Guest -
December 2, 2019
Verified Purchase
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Verified Purchase
eReplacementParts Team
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Customer Repair Instructions ?
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Broken knob
Paul - January 22, 2017
Tool Type
Heater
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Parts Used
Removed old knob put on new one
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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