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What is this pink and orange stuff in fouled oil boiler?

SteambackSteamback Posts: 26Member
edited April 13 in Oil Heating
I'll admit it, I opened up my first old oil boiler today. What really intrigues me is the pink and orange mess at the bottom of the boiler chamber. What is that?


  • PhilDavidPhilDavid Posts: 63Member
    Red dye in oil and poor combustion
  • HVACNUTHVACNUT Posts: 1,586Member
    That's just nasty.
    What model and age is the Buderus? I've never seen that HX design.
  • newagedawnnewagedawn Posts: 549Member
    thats just alot of neglect and in desperate need of a tune up, that thing will run so much better , so sad to see a great piece of equipment so neglected
    "The bitter taste of a poor install lasts far longer than the JOY of the lowest price"
  • GBartGBart Posts: 646Member
    yeah, that's been running terrible
  • SuperTechSuperTech Posts: 468Member
    That's definitely the product of incomplete combustion. And yes, it is the dye in the oil that turns it that color. Proper cleaning and combustion testing will get that boiler chooching again.
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