Burners heat very slowly, oven has to be set 50 degrees higher than desired temp. to get the right heat.
It takes forever to heat a pan of water. The flames on the burners are a soft mixture of blue and yellow - no intensity at all.
An inspector was out from the gas company to check our meter this summer and, although he was not a technician, he looked at the burners and said, "That's not right."
Could it be pressure? The wrong regulator (the range was purchased slightly used and we've always had this problem)?
I saw a Vulcan in a church basement a while back and it was a blowtorch compared to ours.
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Re: Burners heat very slowly, oven has to be set 50...
First, you should make sure the unit is set up to run the type of gas you use. If you have natural gas and it is set up for lpg, or vice versa. If it is wrong, you can retrofit it by changing out the orifices. Other than that, check your pressure at the manifold that feeds the burners to see if it is adequate. A bad regulator could very easily cause this problem as well.
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yellow flames in gas burners indicates
1--insufficient gas pressure
2-- the position of the air shroud around the gas jet is wrong and needs to be moved forward or back to adjust the amount of air available for the air /gas mixture
correct mixture is a blue flame
Check the thermostatic valve. Prior to this, make sure that your orifice is ok and the fuel gas mixture is right. The way to check the fuel air gas mixture is to see that the flame are all blue and no orange or yellow color flame is visible. The flame should also not lift off the burner tending to lose unburnt gases to the inside.
pilot is yellow cause its air mixture hole is blocked or you have something in pilot stem like a spider web i have had this problem on flame effect gas heaters during thier off months spiders get into pilot stem and create webs which can cause this the other reason is that the air mixture hole is blocked with carbon or something clean out to get blue flame, and an example of yellow flames in gas heaters is flame effect fires where i know a certain company cover air mixture hole on burner to get the flame more yellow and realistic looking but on a service i remove the foil they stick over hole making flames blue again, as it can cause the heater to carbon up to the extent of black glass with yellow flames
haven't had much to do with this type of heater but a yello9w falme is usually reducing the oxygen from the gas by the the air mixer on some flame effect fires they cover air holes on burner to get the flames yellow the only problem is they can carbon up from this in a heater you don't look into flames this may be ok but i would check the burner air mixture hole if has one but that smost likely the reason for yellow flame not blue so its probably no problem carbon in heat exchanger will make heat transfer a bit slower so probably best to try and fix
You need to start by cleaning burner tube and pilot intake , sounds like spiders have probably spun a web in there. If flame is yellowish, it's not getting enough air. You can buy a barbecue burner brush, long and flexible, and run it through burner tube to clean out web, and if pilot is yellow as well, there is a small hole in side of fitting where it attaches up near burner that needs to be cleaned out with paper clip or even better, compressed air. After cleaning burner, adjust air shutter to get nice blue flame, with just a hint of yellow at tip. The idea there is to get blue flame, but not a roaring flame that is jumping off the burner. A spider web in there will usually allow propane through, but restricts air mixture, thus causing yellow flame (rich mixture) and soot to build up.
Sounds like the burner flame may be too strong (jumping out from burner tube) . Some people think the louder the better, but that is not correct. When burner shuts down like that, it has a tendency to snuff out pilot as well. Adjust your air shutter at burner so that the flame is a nice blue, or with just a hint of orange/yellow at the tip. Whatever setting that keeps the flame solid from burner tube, and not a big gap between tube and flame. Signs of soot (black) up the cover, or side of trailer means it's running too rich, and you've gone too far thus needs more air. Keeping the flame blue but still right out of the burner, actually heats better, is quieter, and should eliminate that pilot getting snuffed out. Pilot should also be a nice blue flame as well. There may be a problem with positioning of the burner tube as well, but doubtful if it has been running well in that position before. Let me know what happens.
In a gas dryer, heat is provided by a gas heater that is controlled by an air shutter. The gas heater is generally the source of no-heat or drying problems. You can often correct such problems by adjusting the air shutter on the gas burner, which is located along the bottom of the dryer.
To adjust the shutter, take out the screws and remove the panel that covers the gas flame. Turn on the dryer so the flame is burning. If the flame has a deep blue color and you hear air whistling around the burner, the air/gas mixture is receiving too much air. If the flame has a yellow tip, the mixture is not receiving enough air. Turn the thumbscrew or loosen the two screws slightly to increase or decrease the flow of air to the burner. Keep turning until the flame is a light blue color, without any yellow, and the whistling stops.
make sure you have the correct orifices, make sure you have good gas pressure and make sure pressure regulator is ok.
also if the unit has been in service for a while check the orifice for build up a wire or needle will work to knock out any build up