The first times I was reading about the oil fired boilers I did not understand anything about it.

They all seemed to be fired on Parafine. In the Netherlands that is what they need to make candles, and is certainly in a solid state under environmental conditions.

After some investigations I got the answers:

The Englishman call it PARAFINE

The Americans call it KEROSINE

The France call it Petrol

We call it PETROLIUM or KEROSINE, the stuff you can put on an airplan or in a oil lamp.

Kerosine is basically the same as GASOLINE or DIESELOIL  or HOUSE BURNING OIL, without the aromatic and oily additives. The oil is added to gasoline to save your injectors. 

If you put parafine (UK) or Kerosine (US/NL) or Petrolium (NL) in your diesel-truck, it will run for quite a while but than at once your fuel pump and injectors will be defect.

Somebody told me the Dutch army once tried this in an attempt to safe money on fuel, this way they demolished hundreds of nice Landrovers, tanks and trucks.

Typical Dutch.