All monitors use diesel! And now with ULSD it is even a no maintenance issue with soot to burn no. 2 diesel. In the bush in Alaska, they get only three types of fuel if they are larger villages: Jet A, gasoline and 100LL. I can tell you that there are probably about as many monitor and toyo heaters in Alaska as wood stoves. They are the two primary heat sources, unless you are near Anchorage/Wasilla or Kenai where natural gas is available. They are simple heaters and easy to repair. A burner rebuild kit for my monitor is about $250. I can do it myself and it’s super simple – takes about an hour. If you know which end of the screwdriver to use, you can do it in less than three hours your first time, I would bet!
The diesel engines run fine off Jet A, a little dry for some seals in pumps, but no harm done. Being in aviation, every diesel vehicle at the airport runs off sumped Jet A from aircraft tanks, or Jet A right out of the fuel truck. Our ground power units are diesel, as well are Jet A powered. I've personally run about 1,000 gallons of Jet A through my 95 7.3 diesel, and I would run 1,000 more if I could get it for free after defueling a aircraft with an under wing panel leaking.
I ran eight ounces of two-stroke oil per 18 an gallon tank to help with lubrication of the injector seats, and it did quiet the injectors down a lot. That o-ring saved me from buying fuel all winter! I got $5,000 in fuel sumped for a $5 o-ring! Thanks. Call me again anytime in the future.
The fuels do not smoke more than the others. It is because the off road machines have larger injectors and are not as efficient in burning the fuel upon an increase in acceleration. The only issue is Jet A, which is cleaner and drier as far as lubrication properties, but it has the antimicrobial agent in it and has the lowest BTU rating. Kerosene is next, then no. 1 diesel and then no. 2 diesel has the highest BTU rating. No. 2 has too much paraffin wax and gels at about 20 degrees. All turbine engine aircraft can burn kerosene without any damage, as well as diesel, but you do not have the anti microbial agents (like prist) and one would want to clean their filters and make sure that it was from a clean source.
When I use no. 2 diesel in my truck, I get 18 miles per gallon, with no. 1 diesel, about 13 miles per gallon and with Jet A, about 10 if I’m lucky. If you have a monitor with an indoor tank (some places in Canada I know have basement fuel tanks), if you can get no. 2 diesel before winter hits, you can save yourself more money because of the BTU per gallon savings.
There was a lot of discussion about diesel in Toyo and Monitor heaters. They said never use diesel in them when they were made, but now with ULSD, it is perfectly fine. Several universities did tests when ULSD was coming out, and they saw no noticeable negative effects of using it, if not a plus because of less soot build up even compared to no. 1 heating oil. And if you have a source for offroad or no. 1 diesel, it’s all the same. Just the red dye for non tax usage. There’s not one difference in no. 1 heating oil and no. 1 diesel. Most fuel stations will start mixing no. 2 and no. 1 road diesel in early October, depending on location so they won't be stuck with bad fuel in their tanks in the winter time. They can't order no. 2 in the winter, because the refineries stop making it!
If you have a fuel station that sells "stove oil," it is going to be no. 1 diesel, and yes, people do pump it straight into the auxiliary tanks of their trucks, and then take the chance of being dipped for red dye fuel.
I run no. 2 diesel in my monitor if I am not willing to pay for an extra delivery of fuel after hours from my supplier. I’ve never had anything go wrong, and it’s all the same when it comes down to it now with ULSD. ULS is the base for all Jet A to ULSD no. 2 at the pumps. It all has to be low sulfur, and that means less soot!