Glassy tar like deposit

Phil_17

This may help explain your problem.

http://www.fuelright.com/technotes/stability.html

Toddid Goldsmith's

Glassy tar like deposit

This heating season we have had a real problem with a glassy dark black tar like deposit, forming on the retention heads. We have at least two or three calls each day, with the same problem. Z demensions are right, nozzles are right nozzles. Units that we installed 20 years ago, never have done this, they are doing it now. Makes no difference what kind of unit, Beckett, Carlin,Sunray,Wayne,Riello.Post purge, pre purge units,warm air, boilers,buried tanks,above ground,inside or outside tanks,all #2 oil.The only common denominator is the oil.Supplier is telling us that it is an Algae. Any ideas??

sootmonkey

Too much air would be my bet.

What are your co2 numbers? Below 10%?

Toddid Goldsmith's

Too much air

Air ws the first thing I thought of also. co2's are 11-12-13.This stuff needs to be cleaned off with a wire wheel.It is like schellac, after it has dried.Have found nothing that will makeit dissolve.Carb cleaner, lacquer thinner, gasoline, fuel oil,nothing will disslve it, and it does not burner.But it is a conductor.Had to remove a carlin gun today,chip this stuff off the end of the blast tube,before i could pull the drawer assembly out

Toddid Goldsmith's

Thanks

Thanks Ernie, I sent them an e-mail, haven't heard back yet.Yesterday I had a Burnham v-36 that i installed in 1988.There was a chunck of this stuff about 10" from the end of the blast tube,stuck to the bottom of the fire chamber,about 3" thick, 6" wide, and 6" tall, standing straight up.Boy that made it run nice.It was as hard as a piece coal, and thats what it looked like, shiney black. Thanks again!

Toddid Goldsmith's

Thanks

Thanks Ernie, I sent them an e-mail, haven't heard back yet.Yesterday I had a Burnham v-36 that i installed in 1988.There was a chunck of this stuff about 10" from the end of the blast tube,stuck to the bottom of the fire chamber,about 3" thick, 6" wide, and 6" tall, standing straight up.Boy that made it run nice.It was as hard as a piece coal, and thats what it looked like, shiney black. Thanks again!