Terry Hlavaty
TVWBB Member
Worst thing you can do it "tweak" something to try to mask another issue. Be careful
Nothings getting tweaked until I know what the WC pressure is, measured at multiple points.
TJH
Worst thing you can do it "tweak" something to try to mask another issue. Be careful
I would not get nervous yet, let me troubleshoot what might be going on with my unit, and I'll report back. Honestly, I like the NG aspect so much that I would live with my current situation, even if it couldn't be improved. But, I'm confident that there's a piece to this puzzle that I have not found yet, but I will! Next week I'll know the line pressure, before then I'll determine what the jet orifice's really are.
HRG
No copper tubing/flares anywhere in the house, everything is piped with iron pipe. The only flare connections that exist are the ones on the grill itself, the OEM flex hose that I installed is attached directly to the bulkhead fitting for the hose. The quick-disconnect used is the one supplied by Weber.The link on weber's site also has some troubleshooting tips on the connection line.
2. Were any flare fittings used to make the connection between the supply line and the quick disconnect hose? Flare fittings can cause damage to the “bridge” of the natural gas hose, resulting in a reduction of gas pressure to the grill. If you aren’t sure if you’ve got a flare fitting in your setup you can send a photo of your connection to support@weberstephen.com.
3. Is the "bridge" on the end of the hose (where it fits into the quick disconnect) broken or dented? If you aren’t sure if the bridge is damaged you can send a photo of your connection to support@weberstephen.com.
6.5" where the wall stub exits, after the valve, and about a tenth lower at the end of the OEM 3/8" flex line, thru the QD.Have you measured the gas pressure at the line to the grille?
Bruce,Terry, your real solution is to get the correct pressure coming into the house. I am not sure if you tried that or not and mentioned it earlier in the thread, but I can see problems if you don't do it the right way. First is that you could be creating a dangerous situation with the grill. It is designed to work a certain way, with a specific gas at a specific pressure. Start changing that up and you can wind up with unintended results.
Second is that if you already have low pressure, using a gas grill will likely lower it even more while it is in use. Again, this is not a good situation.
I do hope you get the grill working the way you want it to and will be looking forward to your eventual solution.
I'm not sure I would completely trust the reading on a no-name Chinese pressure gauge without checking it against a known value. The only thing I have ever used to check gas pressure is a manometer similar to this one:
It just seems to be inherently more accurate than a mechanical pressure gauge at such low pressures, but I would rely on your what your Field Service guy tells you.
If you are talking to me, I'm not slamming you at all. You have done your due diligence in checking your gauge against a known value. Gauge error is a very, very common thing. Haven't you ever seen in the movies where someone taps on a gauge to check on a reading and it moves, usually right before something blows up?I also used a Yellow Jacket 0-15" WC kit, it was within a tenth of the other gauge. I took both gauges to a house with a Weber quick disconnect for their Spirit BBQ, and both read right at 7". The Yellow Jacket kit I used was the same one my friend was going to send me.
Feel free to keep slamming me, and telling me this is all on me. Bring your manometer over and test my house for yourself.
Keep the ideas coming! TJH
I actually mentioned that to the rep at Weber, and asked him to confirm that the larger grills (4+ burners) come with a regulator, and drop the pressure down to 3.5 or 4" and use larger orifices. If I get a little more improvement with the next step at .065", I'll call it good and get back to grillin'.Well here is the thing. A regular gas appliance in the home operates at 4" IIRC to address just this kind of issue
BTW I did not see any "slamming" going on. I saw good people who were concerned. Now that being said a couple things I would do. Though first off having someone knowledgeable by your side is a HUGE help and it's how I learned.
1. I would raise holy hell with the gas company.
2. Failing that I would install an appliance regulator on the grill. IIRC they come set at 3 or 4 WC". They're labeled so you don't have to guess. Then I would get a new set of orifices and size them appropriately to that pressure and voila' you're all set. If Weber had not cheaped out and simply supplied it with a regulator in the first place it would not have this issue
The good news is, I finally got Nicors' attention (NG Utility), they stopped by last evening to talk about my concern. The Tech's position is that anything from 6" to 6.5" WC is acceptable to them, so they will not be adjusting the regulator.I actually mentioned that to the rep at Weber, and asked him to confirm that the larger grills (4+ burners) come with a regulator, and drop the pressure down to 3.5 or 4" and use larger orifices. If I get a little more improvement with the next step at .065", I'll call it good and get back to grillin'.
TJH
I would say that the flame is about a 1/2" taller than it was originally. Image 0918 is with a .065" orifice, 0919 is with a .0625". I think I'm going back to the .0625's, I like the way it ignites a little better, not as aggressive a "woooosh".It sounds like your grill is getting hot enough now. Could you post a photo of the burners in action after it gets dark out. I would be interested to see how the flames look.