Soot is forming on my gas fire. it is fuelled by lpg. ive tried using calor gas instead of a cheap gas but its still the same . help` its driving me potty !!!!!!!!!!!!!!!

Gas fires need servicing sometimes to remove the natural build up of dust, fluff and carbon and it is probably this that is causing your trouble.
Service engineers will remove the radiants and vacuum the burner(s), the mixing chamber and check the gas jet(s) are clear, the gas pressure is correct and there are no leaks.

Using a vacuum creates less mess but it doesn't always get to the heart of the trouble and many fires that have been condemned as being worn out often need stronger medicine - should fluff be partially blocking the air supply to the mixing chamber the gas/air mixture will become gas-rich and the flame will create soot, sometimes lots of soot that vacuuming doesn't shift.
The careful application of a compressed air jet does tend to move lots of soot...

This is best done in the open air...

Hello Robert,

I do not think you need a handbook for that.
Most cooker tops have nozzles that you can replace. They look like the ones in the link.
there are numbers printed on these nozzles.
LPG nozzles have smaller holes in it.
Just find out what size you need, they mostly are wrench 7 mm
Kind regards, Dik

Gas 4 burner cooker jet nozzle LPG propane butane Calor conversion set eBay

Are you on propane (LPG) or natural gas? I would guess that you are on propane, and that your oven has not been converted over to LPG correctly. The regulator needs to be set up for LPG, and the oven gas orifaces need to be tightened down, and the air valves opened up. If you don't know what these terms mean, then you need to contact a professional, because you don't want to monkey around with gas!

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Soot is formed when the fuel combustion is incomplete. Incomplete combustion may occur if the fuel is low, air and fuel mixture is not correct, wrong size of burner orifice with respect to the fuel used ( propane or natural gas).
Soot can be removed by wiping it off with a nylon scrubbing pad dipped in grease cutting solution. Check also the fire tubes for soot or carbon build up.

It shouldn't be burning yellow and emitting soot at all;sounds like on of these possible causes-
(a)blocked burner airways(this can lead to yellow tipping and sooting on LPG powered appliances because insufficient air is getting through to the burner causing it;you can also get this effect on LPG barbecues say if dead insects or spiderwebs are in the burner pipes and airways after a period of storage),
(b)incorrect aeration being set when the burner was converted using LPG jets(too much gas and not enough air causing yellow flames/smells and sooting),
or (c) if you use propane cylinder gas a dicky or faulty regulator. I would get it looked at investigating all the possibilities I mention and taking action to correct this where necessary ie clearing the burner airways(if this is causing your problem), adjusting the aeration in the burners until you get a clear noiseless blue flame without any excessive yellow and sooting(but even after good adjustment you may find still get a very slight yellow tip without sooting at the top of the flame;this does happen with propane gas and there is a slight tendancy for this to happen more often with butane-butane tends to display very slight yellow tips on ignition increasing slightly as the burner warms up to full temperature) or if you use propane cylinder gas replacing the regulator if that is necessary.

Have to adjust the piolot lights for the amount of gas coming out. U have too much gas coming out(yellow flame). On older gas ranges, there was a small screw between the piolot light & burners that had to be adjusted. (if this is a older model) have to turn the screw just a little at a time, till ur flame returns to blue on ur burners. Hope this helps.

Hi, This needs new pilot assembly,when the fire uses lpg they have a harder time of it than with natural gas.They burn hotter and lpg is less forgiving .Let know if you need help further or parts. Will

It's best that you use the gas type and bottle size that the manufacturer recommends. Different gases burn at different temps.

You need a C.O.R.G.I. (soon to be re-named "gas safe" in april) engineer qualified for LPG to sort this.

well its my experience that ranges don't come lpg they are all made natural gas but you convert them to lpg after purchase now if the lpg conversion isn't done properly then they soot like crazy proper lpg converson is to change the spuds on the burners and to turn the orifice over in the pressure regulator do you still have your owners manuel if so consult it on converting gas range to lp then check to see if every thing was done right on the pressure regulater there is a square cap you take it off and there is a round part that on one side says lp on the other says ng this changes the pressure that the regulator as ng and lp operates at different pressures and the regulator has to be set for what you using like i said im not familiar with your brand or model but i do know the problem if the range did come ng then you need to make sure the conversion most ranges aren't lp because there is not that big a market for it read the plate on the back will tell you if it was made ng or lp serial plate on front may say also most of the time it is beside the bottom drawer on the range