Smoking Burner

nibbsy

New member
burner1.png
Hi guys, I am trying to track down why my two new hot water heaters that I have just taken delivery of are over fuelling and smoking like steam trains.
They are meant to be 3GPH /420000 btu Beckett 230 Volt AFG burners but I am wondering if the burners are configured correctly as I can get them to burn clean with much smaller nozzles but not with the 3gph nozzles that were supplied.


The MFG’S SETTINGS says FIRE RTG: 1.65 –2.50GPH.
What is RTG and how is that going to effect running the burner at 3GPH?

MFG’S SETTINGS says PMP PRS: 140psi.

Now 140psi x 3GPH nozzles gives me 3.6 GPH fuel flow.
Should I reduce the pressure of the fuel pump to 100psi or maintain pressure at 140 psi and reduce nozzle size to 2.5 that gives about 3GPM?

Thanks
Greg
 

FullBlast

New member
Could it be the it needs more air?

Like if the air band is adjusted so it is not letting enough air in for that size of nozzel.

Just a thought.
 

tomtucson

New member
Too big of nozzle. The fire RTG means the range of fuel flow the burner is meant to run in, so 3 GPhour is way too much, your max is is 2.5.
 

nibbsy

New member
Thanks Russ, the instructions to the manufacturer on the build was to supply me with hot water systems that would give me 220f with 51/2 gallon water flow.
 

nibbsy

New member
Can these burners be adapted/altered or do they need to be replaced so I can have them burn at 3GPH?
 

nibbsy

New member
Hopefully all I may need do is change the burner head as the supplied head is a F22 and according the that chart it should have been an F31 ? ? ? ? ?

That would make me smile if that was all it was.
 

nibbsy

New member
Thanks everyone for their input. The good news is, that now the problem has been identified the supplier is all over it.

One more question, I am thinking of buying test gear so that I can tune all my burners instead of doing it by eye. I was thinking of a digital unit and after recommendations as to what I may need and what you would buy?
Greg
 
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