Burner problem

[RyanVanWoerkom]

Can’t get blue flame, is this burner designed for natural gas or am I doing something wrong with the propane set up?

 

[waldoar15]

Unless I can't see it, there's no provision for combustion air. Needs a manifold with a mixer going into the burner.

 

[ClaudiusB]

View attachment 651582

Can’t get blue flame, is this burner designed for natural gas or am I doing something wrong with the propane set up?

On the left is a natural gas jet, on the right is a propane jet.
Edit: I just measured the natural gas orifices, 0.041", LP orifices 0.018" with high precision paperclips
The burner also requires a low pressure regulator.

 

[ClaudiusB]

Unless I can't see it, there's no provision for combustion air. Needs a manifold with a mixer going into the burner.

Those jet burners don't require any manifold, all air enters through the bottom holes.

 

[RyanVanWoerkom]

Those jet burners don't require any manifold, all air enters through the bottom holes.
View attachment 651591

Thank you for the info!

So if I hook this burner up to a high pressure regulator it should give me blue flame?
(In the picture I had it hooked up to just a standard HomeDepot low pressure regulator)

 

[RM-MN]

I do not see the fitting that ClaudiusB shows in the picture. Where in your setup is this fitting?

 

[BrewerBrad82]

Those are the burner tips themselves.

 

[GNBrews]

Thank you for the info!

So if I hook this burner up to a high pressure regulator it should give me blue flame?
(In the picture I had it hooked up to just a standard HomeDepot low pressure regulator)

Very likely, yes. The higher flow will draw in more mixing air.

 

[RyanVanWoerkom]

Thanks again to all for your help.

I hooked up a high pressure regulator and the flame is much better (about 1/2 blue and 1/2 orange).

How can I get 100% blue flame?

Does sealing all the threaded connections help? As it would reduce the amount of gas leaking out.

The regulator is adjustable from 0-30psi and at all settings the flame is still only half blue.

 

[ClaudiusB]

Thank you for the info!

So if I hook this burner up to a high pressure regulator it should give me blue flame?
(In the picture I had it hooked up to just a standard HomeDepot low pressure regulator)

Did you determine what gas jets you have?
My burners run on low pressure <0.5 PSI
The yellow flame in the picture is a leaking jet at the threaded part before I fixed the problem.