<HTML>At the end of the article the guy makes the statement that "burning propane is more environmentaly friendly". Nonsense. That is only true in IC engines, where the fact that the fuel is already gaseous before it enters the cylinder helps in a more complete combustion. The whole point of external combustion is that it can be made clean no matter what fuel you use.
In other words, diesel can burn just as clean, and it has far more energy content than propane.
Actualll Diesel fuel contains a lubracant that is a littler hard to burn. Not impossable. But usually on ingition of the burner you get incomplete combustion for a bit.
No 1 fuel oil is a better choice. Same as Diesel fuel with out the lubricant additive.
Well, of course if Diesel ever got to be the fuel of choice for steamers, then they would stop putting oil in it. But then they would call it No. 1 fuel oil..... Oh, it's all so confusing :)
<HTML>Most Diesel oil is selected #2 fuel oil. It is somewhat lubricating in its own right. #1 oil is thinner and if clean enough could be sold as Kerosene. some Diesel engines (not all) need added lubrication of the injectors when using #1. The main reason for #1 Diesel is that #2 will gell at low temperatures, which can lead to stalled vehicles in Minnesota winters!</HTML>