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JDS1750EB1 Re-engineering gas burners

garyfritz

Premium Member
Joined
May 31, 2016
Messages
28
Location
Colorado
Model Number
JDS1750EB1
Brand
Jenn-Air
Age
1-5 years
I have a Jenn-Air JDS1750EB1 dual-fuel range. Gas cooktop. And apparently Jenn-Air (and Whirlpool, GE, probably others that are basically identical) have no clue how to design a gas burner. :mad:

The burners consist of a metal... gas distributor thingie... that goes on the gas supply, and a steel/iron cap that goes on top of that. The gas comes out of the center of the thingie and spreads out to the edges of the cap, where it is ignited.

Unfortunately the gas jets are basically horizontal. And for both front burners, the cap is 4" in diameter. Which means the heat starts in a 4" circle and shoots straight out from there. Even with a 12" pan, more heat comes shooting out around the sides (singing my arm hair and making pot handles blisteringly hot) than goes into the bottom of the pan. Food burns onto the sidewalls of my pans and doesn't even boil in the center. Stupid design.

I wondered... what would happen if I drilled holes in the cap? Open up say 4 holes near the center, maybe angled outward, and hope the gas flows up through those holes in addition to the larger openings around the side. The burner caps are fairly thick, I'd guess at least 1/4", and I have no idea how brittle or drill-able it is.

It's a crapshoot. And if the gas flow worked, I'd still have to figure out how to light those center jets. I don't know if the burner heat would cause so much updraft that the gas would go up and never reach the flames around the disk where it could ignite.

Thoughts? Any way to make this thing heat the food instead of me?
 

rickgburton

Appliance Tech - Moderator
Staff member
Joined
Jul 11, 2006
Messages
37,106
Location
Murray, Utah 84107, United States
If anything, you'll probably make it worse. The burner caps are drillable but can easily break a drill bit.
 

Lewis R

Premium Member
Joined
Oct 26, 2019
Messages
22
Location
Chuckatuck, Va.
Absolutely would not drill an additional hole in the cap. Use one of the smaller burners if the flame is too large on the one being described. Also maybe the gas pressure is higher than it should be, causing a larger flame than normal. I have seen this happen, in particular when a backup generator has been installed, requiring a 2 Lb main gas regulator to supply the gas demand of the generator. But also a 1/2 Lb regulator needs to be installed downstream of the 2 Lb main regulator, to supply the rest of your household requirements. IE: Range, Hot Water, Heating system, etc.
If a 2 Lb regulator has been installed, I think its 2 Lb, maybe 1 Lb, anyhow its more than the standard 1/2 Lb, in my area of the country, the meter face is red in color.
Also, are you on Natural Gas or Propane.
Look to see that the regulator on the range is set for the proper type of fuel being used. Most come set up for Natural Gas and have to be changed for use on LP gas.
Natural gas operates at approx. 4 inches water column. LP gas at approx. 14 IWC. So a big difference in flame size will occur if gas type and regulators are not set up correctly.
You may need to get someone to look at this in detail, and that has the tools to measure gas pressure, manometer, to verify correct pressure.

Lewis
 

garyfritz

Premium Member
Joined
May 31, 2016
Messages
28
Location
Colorado
It's on Natural Gas (city gas line). It was installed by the store (specialist appliance store, not a big box) so I assume they knew what they were doing.

Even if the pressure was too high, even if you lowered the pressure (which is effectively what I have to do, running the burner at low or medium), it's still dumb to have ZERO heat in a 5-6" circle right under the pan!

I use the small rear burners often, though it's a pain. The front burners are much more convenient. But when set to anything over low/medium, the front burners waste half or more of the heat by shooting it beyond the sides of the pan.

These front burners might work OK on a 15" or 20" pan, but I don't have one of those...
 
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