HOT WATER BECKETT AF NOZZLE AND IGNITORS COVERED IN HEAVY SOOT
Delco DB4 boiler with 1.25 80 degree hollow nozzle.
Boiler completely cleaned one month ago…vacuum,brushed,etc…new chamber matte..all set to spec as well as z dimension…draft over fire was 2 and breech was 4…clean oil..was primed..filters ok…transformer working…photos attached.
The chamber has alot of soot on sides and on matte…as well as at the test hole for draft on side of boiler..this is thick coating.
Heat working yesterday and cut off three degrees before hitting temperature…was on safety and hit button and saw puffback…coming from where gasket is near tube entrance and it was white smoke….turned it off. Checked pressure…no drop whatsoever and chamber dry.
Any ideas on this one?
Comments
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Was a combustion analysis performed? It sounds like it wasn't and the combustion is poor or the flame is unstable.
1 -
insufficient combustion air.
Somwone needs to learn how to use one of these:
Edward Young Retired
After you make that expensive repair and you still have the same problem, What will you check next?
1
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