webster low nox

johnungiechajer

i have 2 webster JBX2 low nox burners and the low nox head is glowing. webster says the head shouldnt be glowing.

no matter what what adjustments are made the heads glow. where the gas enters behind the head i dont see how they cant glow.

has any one run into this

thanks

EBEBRATT-Ed

No. I would contact Webster and see what they recommend.

EdTheHeaterMan

Where the gas comes out and where the flame burns are not always the same place. By looking at the combustion head of that burner there seems to be a flame retention head on it. The flame should start burning after that slotted burner head. If the flame is burning with that head inside it, then chances are there are some demensions that are incorrect. They are usually very detailed drawings of those measurement in the I/O manual. Is this a combination Oil/Gas burner or Gas only? Natural or LP gas?

johnungiechajer

gas only

EdTheHeaterMan

The information that you need is in the manual that should have accompanied the burner when the system was installed.  I looked in the Webster website for the specifications with the drawer assembly dimensions and was only able to find this information on adjustment. There was no dimensional illustration

The previous recommendation to contact Webster is my best advice.  Get the detailed drawing of the Drawer assembly to know where you need to start so the diffuser end is before the flame, not after the flame.