How to Get a Propane Heater to Work: A Comprehensive Guide for Mr. Heater Users

Getting a propane heater from Mr. Heater to work can be a straightforward process, but it’s essential to ensure that the orifice is clean and free from any debris that could be hindering the ignition process. In this comprehensive guide, we’ll walk you through the step-by-step process of cleaning the orifice using rubbing alcohol and a Q-tip, as well as provide you with technical specifications and DIY tips to help you troubleshoot any issues you may encounter.

Cleaning the Orifice: A Step-by-Step Guide

  1. Remove the Guard: The first step is to remove the guard from the heater to access the orifice. This will allow you to have a clear view of the orifice and ensure that you can properly clean it.

  2. Prepare the Q-tip: Dip a Q-tip in 70% isopropyl alcohol, making sure to pull some of the cotton off if it’s too thick to fit down the orifice. This will ensure that the Q-tip can easily slide into the orifice without getting stuck.

  3. Insert the Q-tip: Carefully insert the Q-tip down the orifice, going about two inches in. This will help to clean out any debris that may be blocking the ignition process.

  4. Repeat the Process: Repeat the process of inserting the Q-tip down the orifice a few times to ensure that all the debris has been removed.

  5. Try Lighting the Heater: Once you’ve cleaned the orifice, try lighting the heater again. If it still doesn’t work, you may need to replace the spark igniter or check for any other issues.

Technical Specifications

how to get a propane heater to work mister heater

To ensure that you’re using the right tools and materials for the job, it’s essential to understand the technical specifications of your Mr. Heater Buddy heater.

Orifice Diameter

The orifice diameter for Mr. Heater Buddy heaters is typically around 0.16 inches. This means that the Q-tip you use should be small enough to fit snugly down the orifice without getting stuck.

Rubbing Alcohol

The recommended rubbing alcohol for cleaning the orifice is 70% isopropyl alcohol. This concentration of alcohol is effective in removing any debris or gunk that may be blocking the orifice.

Q-tip Insertion Depth

The Q-tip should be dipped in the alcohol and inserted down the orifice for about two inches to ensure proper cleaning. This depth will help to reach any debris that may be deeper within the orifice.

DIY Tips

In addition to the step-by-step guide and technical specifications, here are some DIY tips to help you get your Mr. Heater Buddy heater working again:

  1. Q-tip Fit: When cleaning the orifice, make sure to use a Q-tip that fits snugly down the orifice to ensure proper cleaning. If the Q-tip is too thick, it may get stuck or not reach the necessary depth.

  2. Spark Igniter Check: If the heater still doesn’t work after cleaning the orifice, check the spark igniter to ensure it’s working properly. A faulty spark igniter can prevent the heater from igniting.

  3. Hose Inspection: If you’re using an external tank of propane with a rubber hose, make sure to check for any blockages or leaks in the hose that could be preventing the heater from working properly.

By following these steps and keeping these technical specifications and DIY tips in mind, you’ll be well on your way to getting your Mr. Heater Buddy heater up and running again.


  1. How to Clean the Orifice on a Mr. Heater Buddy
  2. Mr. Heater Buddy Troubleshooting
  3. Mr. Heater is Not My Buddy – It Won’t Light/Ignite
  4. Mr. Heater Buddy Instruction Manual
  5. Mr. Heater Buddy Troubleshooting and Maintenance