Nothing burns cleanly in a fireplace, even gas ones except for ventless ones.
Anything you burn in a fireplace like wood, oil, fat etc. will produce organic compounds that the fire is unable to break down into non-flammable substances because it does not burn hot enough.
A wood fireplace accumulates creosote, which can build until it is capable of igniting and cause a chimney fire. Oil and fat combust very poorly and will coat the flue with material that is easier to ignite than creosote. This ends up being a hazard worse than just wood byproducts because they can ignite and then set the creosote burning.
Complete combustion of hydrocarbons is difficult and usually requires specialized equipment for that hydrocarbon. A fireplace is probably for wood (I assume nobody here is throwing cooking oil into a gas fireplace), but it’s not even good at that. Cooking oil will spatter and polymerize
sigmaklimgrindset@sopuli.xyz 1 month ago
You know the grease you see on the range hood or ceilings of your kitchen/restaurants above the cooktop/stove?
Same thing would happen in your chimney, but combined with wood fire ash.
BearOfaTime@lemm.ee 1 month ago
But the oil is being burnt?
Is there something from the combustion process that causes issues?
Death_Equity@lemmy.world 1 month ago
Nothing burns cleanly in a fireplace, even gas ones except for ventless ones.
Anything you burn in a fireplace like wood, oil, fat etc. will produce organic compounds that the fire is unable to break down into non-flammable substances because it does not burn hot enough.
A wood fireplace accumulates creosote, which can build until it is capable of igniting and cause a chimney fire. Oil and fat combust very poorly and will coat the flue with material that is easier to ignite than creosote. This ends up being a hazard worse than just wood byproducts because they can ignite and then set the creosote burning.
captainlezbian@lemmy.world 1 month ago
Complete combustion of hydrocarbons is difficult and usually requires specialized equipment for that hydrocarbon. A fireplace is probably for wood (I assume nobody here is throwing cooking oil into a gas fireplace), but it’s not even good at that. Cooking oil will spatter and polymerize