Burning Diesel Oil in a Fuel Oil Furnace: Is It Possible and What Are the Drawbacks?

Hello, is it possible to burn diesel oil in a fuel oil furnace? If not, why and if so, what are the disadvantages of using it.

acc. I have no downsides
Diesel fuel has properties that are determined in laboratories by applying twenty test methods. Practical knowledge gained from many years of operation of diesel engines around the world confirms that all specified properties are necessary to ensure reliable starting of the engine and extend its life to thousands of hours of flawless operation.
Of the twenty diesel test methods listed, only five are used to determine the commercial properties. They indicate that diesel oil, like any fuel without exception, should not contain water and dirt, i.e. impurities with inorganic and organic compounds.
On the other hand, light heating oil, which is sold at filling stations, has properties determined in laboratories only by ten test methods. If we take into account that five of them are of a commercial nature, only the other five have specific characteristics of heating oil. Thus, we obtain a 5:15 ratio in the methods of testing the properties of the two fuels in favor of diesel. This is the first reason qualifying fuel oil to be burned in central heating furnaces, and not in diesel engines.

Another huge difference in qualitative properties between the compared liquids is the cetane number. It is a property that creates the essential threshold for fuel qualification for compression ignition engines.
Diesel fuels should have a cetane number above 50 units. This requirement mainly applies to cars and buses that have high-speed engines. For engines installed in tractors and stationary diesel engines, the cetane number, according to the instructions of the manufacturers of these engines, may be slightly lower, which is practically estimated at the limit of 40 units, although this limit is criticized as too liberal.
Heating oils do not have any requirements for determination of cetane numbers. Practically, the cetane number of the majority of light fuel oil produced by Polish refineries, i.e. PKN ORLEN and Rafineria Gdańska (Grupa LOTOS) ce@@@e the level of cetane numbers within 20 units and slightly below!!! The danger of operating a diesel engine on fuel oil with a cetane number of 20 units is very high for a diesel engine. Longer periods of operation on such fuel lead to gradual sealing and gumming of the entire engine system.
This applies primarily to the pistons and cylinder as well as to the entire exhaust system.
A low cetane number not only results in reduced engine power, but also manifests itself in an increased content of unburned hydrocarbons in engine exhaust gases. The operation of a diesel engine on such fuel is tantamount to bringing it to a state of emergency.
The second property of diesel fuel, which is of decisive importance for trouble-free operation of the engine, is the fuel's resistance to oxidation during storage or storage. This property is called "oxidative stability". Fuel oxidation stability is especially important in countries like ours.
Polish oil refineries use destruction processes (decomposition of long chains of hydrocarbons, ed.) used to produce gasoline and diesel oil from heavy fractions of crude oil. The fuels obtained in this way form resins and similar tarry substances during storage. Unfortunately, the "oxidative stability" is not tested in heating oil and hence the danger as a fuel for a diesel engine.
However, the cetane number and oxidation stability are concepts that are not well understood by the average user of an internal combustion engine. Therefore, one can successfully invoke a very simple property, namely the density of fuels. Density is also a big difference between fuels, because fuel oils contain higher hydrocarbons, which have a higher density. Burning in the engine, they give a significant amount of soot in the exhaust gases. Therefore, the introduction of heating oil as a fuel for a diesel engine poses a threat to its operation and its longer failure-free operation.
At the end of the discussion of the consequences of introducing fuel oil as a substance driving a self-ignition engine, the problem of enriching additives should be mentioned. These additives are pure chemical compounds, obtained synthetically and introduced in the amount of milligrams per liter of fuel or grams per cubic meter of fuel. These substances are commonly introduced into all motor fuels, including diesel. Polish oil refineries add enriching additives to diesel fuels, which improve the combustion process in the engine and protect it against rapid wear.
Heating oils, on the other hand, have completely different additives than diesel oils. Therefore, the use of fuel oil as a drive for diesel engines gives very negative effects in the operation of the engine.
All these differences between diesel fuel and its boiler brother lead, in short, to the devastation of the fuel-powered engine. Such operation will result in the need for repairs and overhauls of the engine in the long run. In addition, flue gases, carrying, get into the environment

so you can smoke ON?

You can topic extended for information

Can you recommend a small oven?

I am very sorry, but in this matter, despite my sincere desire, I am not able to help, you know, everyone has some experience, their own views, etc. and you know there is no arguing with tastes, from my own experience I would recommend a head adapted to "burning" with overworked oil.. .
http://www.cichewicz.pl/akcesoria/palniki_i_kotly_na_olej_przepracowany.php

link provided in the information issue, 1st good source of information from uncle google

in my opinion, at today's prices, it is better to sell diesel fuel, even to a farmer or a group of farmers, at a bargain price and buy heating oil, in addition, making money on it :D

When it comes to burning diesel fuel, there is practically no difference compared to heating oil. Possibly a small adjustment of the burner, but it will do without it.

and what is used oil? Gentlemen, I'm sorry for asking but I'm ignorant on these topics

engine oil

but he is very expensive I think for 5 liters something like PLN 100 )

New yes;D but the overworked one? (used oil drained from the engine)

Mechanical plants have it in unlimited quantities for free, so for them heating with used oil is pure profit

aha, I understand now because often pour all the oil from the engine and pour new can you buy it from these factories?

you have to ask at the factories
I will return to the topic of diesel heating. Why this particular oil?
It can't be more expensive, even electric would be cheaper.
You jump to extremes, first very expensive diesel oil and now a 180? turn and overworked oil.

well, because I did not know what is overworked oil and wgl, and there is no oo in my vicinity ;( and do you know how much is oo for 1 l?

Searching does not hurt - click

and what do you think about buying the burner for the above oil and putting it temporarily in the furnace for solid fuel?

it won't be super efficient, but it should work.
I am usually against such combinations, it will always turn against you.
In addition, the chimney should be made of acid or ceramic.
It would be necessary to ensure that no one closes the chimney and that the flame does not escape through the ash pan.
Another issue would be to limit the power or use insulation so that the flame does not reflect from the back wall of the boiler.

Overall, it's more problems than benefits.

I have a normal chimney Should I put the burner under the grate or on top of it? ?

buy yourself something like:
- ULRICH EDERLICH
- BUDERUS LOGANO
and don't mix.
As far as I remember, ulrich can work on a turbo chimney (The chimney is routed only through the wall, sucking in combustion air from the outside and discharging fumes to the outside) the limits are max 21kW, 2.2m above the ground and 1m from windows, doors, etc.

but what I mean is that the burner is turned on at night or automatically turns on in the morning and the normanbie burns in the stove, just more automation, without buying a new stove

i.e. when it goes out in the boiler, you will go to install the burner and start it, and then you will take out the burner and ignite it with e.g. coal?
if you want a compromise between comfort and economy, buy one of the above-mentioned boilers and install them in parallel.
If it expires in a coal boiler, the oil boiler is allowed to work. Without any shifting of the burner and combining.
Maybe you have access to natural gas, then the boiler would be at a better price.
What area do you want to heat?

I don't have access to gas - I live in the countryside. the point is that the burner would at least be on all night and in the morning to the rooms not to rise and not to burn in the furnace less than 65 sq m is heated

This is unlikely. You must have a second furnace. Installing a burner is not an easy task. If you do not have good access to used oil, then forget about heating and burners are hellishly expensive for used oil. It will be better to cook on fuel oil. There used to be a price difference between OO and ON of almost 50%, now it's a little less. I know what it is about when you are at home you burn coal in the stove and when you leave or sleep you turn on the stove on OO. It's better to give a second furnace because on the OO furnace you can set the minimum water temperature and when it expires in the coal furnace, the OO furnace will turn on itself. This is the simplest and safest solution. Do not combine too much because I see that you do not know much about it and so that you do not let the house go up in smoke on the occasion of such experiments

hehe ok ) I want to buy a new boiler and if I had already bought it, I would have to modernize the entire installation and buy a monza burner for PLN 500 and they already work on the system I have.

I know you want to solve the problem as cheaply as possible, but don't overdo it. There are no jokes with heating oil. The installation for the OO should be properly made. With such a blowing of the burner, it is easy to unseat and cause a fire. I don't know about the regulations on boiler rooms, but I saw two coal stoves at one of my friends and both were separated by a brick wall, even though one was next to the other. Those are the precautions, and you want to put it all together. He even had a 2000-liter OO tank in a special concrete paddling pool. If the tank ruptures, everything will not spill over the boiler room. It's scary to think what would happen if OO spilled next to a burning coal stove Add a few zlotys and do it properly at least you'll sleep soundly

good will stay with electric heating, the most expensive but automatic