Petersen real Frye vented gas log work fine then all the sudden the flame dies down , then comes back on ; then off and on

Yellow flame means a 'not perfect' mix of gas and air. As long as it goes blue, then it's fine.

Propane heater with yellow flames and roars ' Hearth.com ...

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Jan 24, 2013 - We installed a comfort glow 50k vented propane heater for my mom. ... I went up yesterday and there was a fair bit of yellow/orange flames. ... burner & any misalignment will allow the gas to shoot out the side of the air shutter, ...

Is my new propane heater working right? - Canadian ...

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Not a heater for a non vented place. As for the flame being yellow, that comes from the air to gas mixture, not enough air and the flame will be ...

VIDEOS as well

https://www.google.com/search?q=MR+HEATER+SHOOT+A+YELLOW+FLAME

..

You would need ceramic gas fireplace logs, fake logs that work by helping display the real flames, plus radiating heat with their hot surface. Most require venting, the same as real wood.

This will depend on whether the fireplace is vented or is vent-free. Vent-free gas fireplaces are sold as a kit with the valve, burner, media (logs, glass, shapes, etc) all designed for a particular placement to work together to reduce dangerous chemicals. A vent-free burner and valve cannot have the logs removed and replaced with some other type of ceramic gas log because the exact placement of the logs is designed around the ports in the burner where the flames rise to minimize carbon created from the flames touching the logs.



If your fireplace is vented then the pull of the flue will remove dangerous fumes created by the same placement so there are no rules about re-arranging or replacing "media". If the fireplace is vented then you could use other log-placement-guides to identify the type of log and where it belongs with little worry because vented logs are designed to be able to have some adjustment anyway.



If vent-free and without a manual, an educated technician should do this for you because the BTU setting on the valve must be compared to the types of burners, port placement, size of ports, amount of ports and flame height. After this examination, someone familiar with the various hidden "tongue-and-groove" etchings in different types of gas logs can figure-out where to place the logs. They may have to test the fireplace burning once or twice to get it exactly correct but once you understand the idea of how a vent-free gas log diminishes the carbon-output of the amount of gas flowing through the burners then it is only a matter of watching the flames to see where the logs could be and comparing the size and layout of the logs to find the best fit.

Sounds like a ventilation problem... they're not getting enough air. That's a real safety problem. Make sure they have enough fresh air, and that the room itself does also. This issue is a major safety problem, and if more ventilation does not fix the issue, stop using it! Gas burners are not supposed to stay on without a flame present!

you have bad gas coils.when they are starting to die the dryer will run normally for the first 10 to 30 minutes and then no flame,the coils work fine until they heat up then nothing.when they cool down you'll have a flame again.easy fix,the coils are on top of the gas valve,take out the two phillips screws,remove the metal cover and change out the coils,that's it part number 279834.let me know how you make out

No you should replace the coils. Why? You know you are getting power to the gas assembly so that means the fuse and control are functioning. The igniter glows so that is good. The Flame detect is fine because it shuts down the glowbar when it heats up. So those pesky coils get hot and quit. They eventually cool back down and work a little more, very aggervating to diagnose but easy to fix.Note you do not have to remove the gas assembly to replace these coils.

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you must keep the burner and the pilot light area clean and free of dust also,the area where your burner gets air most of the time it has an adjustment to give it more or less air.I have had my dyna glo vent free model for 8 years.A good cleaning in late fall with low pressure air and 1 or 2 times through the winter depending on conditions of use.
gatesmason88

it sounds like you may have a dirty pilot tube or a weak pressure regulator. I would try blowing out the pilot tube to make sure it is clear and if that does not work then replace the regulator.

there is a thermocouple which is a piece of metal that sits in the pilot flame if this is not in the flame the pilot will go out if this is bad the pilot usually will not light or stay lit let me know if this is useful or of any ?'s

Hi I have the same problem
Bypassed the hi limit switch and it runs fine
service teck replaced board,thermistor, all vents,gas coils , flame sensor and glo coil andf all with no luck. Unless it is bypassed thed ryer will only stay on 5 to 6 seconds on gas cycle
If i plug my old dryer in and hock up to gas and vent it works fine
So im using my old dryer and this peice of **** is sitting beside it as Im not going to run this without the safety thermostat
If you find out please let me know