General Info: Help/Warning Eno oven is worst

[Tornadosailing]

Originally Posted by redneckrob

Do you mind sharing a few more details about replacing the orifice and adjusting the air gap? I have the same oven, also on an FP. When I look at the burner in the bottom of the oven I see a U shaped tube with a bunch of holes in it that the gas comes out of. On the inner side at the middle is a bracket that holds the ignition unit and almost directly across from that is a bracket and a short (2 inch) piece of angle iron that holds the thermocouple and is perpendicular to the burner. Which leaves me unsure of:
1. Where is the orifice?
2. What is the model number and source of the "proper" orifice for propane?
3. Where is the "air gap"?

The manual shows an "air ring adjustment", from 8mm for butane to 4mm for propane but I can't tell what it's actually telling me to adjust from the diagram. And the eno parts catalog doesn't list an orifice in the parts list at all for those ovens. Thanks in advance for the help.

What model/year is your FP?

The orifice is only accessible after removing the burner assembly. It screws into the end of the gas pipe that remains in the oven after the burner is out. The orifice is available in the US from Force 10, but it took some talking to get him to sell me one. I have no idea what that's about. Normally if you ask for a part, a vendor will simply sell you the part.

The air gap refers to a hole in the burner that's partially covered by a sleeve located on the left side of the burner where the orifice is. The sleeve is adjustable to cover or expose more or less of the hole and affects the air/fuel mixture. I had a diagram that showed how to adjust it properly, but I can't seem to lay my hands on it. Force 10 should be able to supply you with this as well.

The thermocouple has to be removed from it's mount on the burner before you remove the burner. Care must be taken not to twist the thermocouple or make any sharp bends in it. The thermocouple is a very thin copper tube that breaks easily (ask how I know) and the oven will have to be removed and mostly disassembled to replace it. If you break the thermocouple the oven will light, but not stay lit when you let go of the knob.

I also believe much of my happiness with this oven is due to the stone I put in it. It evenly distributes the heat and keeps the oven temperature much more stable. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1