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Edward, Handyman
Category: Home Improvement
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Experience:  Handyman, Master Gardener
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How do I adjust the flame mixture on my furnace The ...

Resolved Question:

How do I adjust the flame mixture on my furnace? The flame isbright orange for the most part, not blue. It doesn''t put out as much heat as it could. I feel that the air/fuel mixture is not right. I know fuel oil systems but am new at propane heat in my new location
Submitted: 9 years ago.
Category: Home Improvement
Expert:  Edward replied 9 years ago.


Thank you for asking your question on Just Answer.

Could you explain your situation a little more?

What is the make and model number of the furnace?

When was the last time the furnace was professionally serviced?

What is the age of the furnace?

What have you tried to correct the problem?

Do you have a digital camera that you could use to send pictures of the furnace if needed?

Thank you again for trusting us with your problem.

Please reply as soon as possible so that we can finish answering your question.

Customer: replied 9 years ago.
The furnace is a Intertherm ModMGH -o550AB   It has a date code of 840n303-03. There is a UL tag with a number V 574589.
I bought this place in August of 2007 and just today finally lit the furnace. It just seems that the flame should contain a lot mor blueish color instead of all the orange. I just want to make sure I don't run into trouble. I know how to work on fuel oil heaters but never messed with a propane heater before.
Expert:  Edward replied 9 years ago.

Actually the flame should have the color close to the flame below.


Any orange indicates a poor burn. This can cause several problems, the most dangerous is increased carbon monoxide. Another problem it will cause is the formation of soot which will have to be removed. The orange flame can be caused by several things, improper gas pressure and most likely a dirty burner that needs to be cleaned. Since you have indicated you do not have any messed with a propane furnace, I would like to strongly suggest that you have the furnace serviced by you favorite HVAC service company.

Many homeowners do not realize, the complications of not having a professional inspect the heating system yearly, can cause. If a fire, or worse, is caused by the furnace and there are no records of the furnace being maintained, the insurance company can and will deny the claim for damages. I have worked on systems after they have caught fire and the homeowners got no help from their homeowners insurance for the damage. I have installed furnaces in new homes that the owners were building to replace a home that was destroyed by fire from not having the furnace serviced. I like every customer to have this information to consider before repairing the furnace themselves. It would be a shame if you had a problem due to wanting to save a few dollars needed to have the furnace professionally serviced. I am all for DIY repairs but at times it id best to call a pro and watch them to see what they do.

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