I just found this information on fuels. Looks like lots of great information on fuel selections. I'm also considering the espar, airtronic D4, I looked at one installed in a Glacier craft and looks like the answer for heating a boat.
-Examining fuels: Wallas® products and correct fuel choices.
® marine products can effectively be separated into two groups –
those that burn kerosene only and those that can burn either diesel or
kerosene. This second group is intended to burn diesel, but kerosene will
1. Kerosene only: 800 Mini Cooker, 1300, 1800 and 2400 furnaces.
2. Diesel or kerosene: 85DU, 85DP Stoves, 86D Oven, 87D Range,
Nautic 30D and Nautic 40D Furnaces.
Over the last ten years, diesel fuel in America has undergone a significant
transformation, particularly as it impacts marine systems. In particular, the
amount of allowable (and actual) sulfur content has dropped from 500
ppm (parts per million) to 5 ppm on highway and 50 ppm for marine. This
change alone has made diesel a much more attractive fuel for personal
heating use, since sulfur has been the primary cause of objectionable
smell from diesel.
® products will run well on either diesel #1 or #2 and on what is
commonly called “red” diesel. Diesel has higher (138,700 BTU/US gallon)
heat energy value than kerosene (135,000 BTU/US gallon) and costs much
less than commercially available kerosene. While either fuel can form
gum deposits if left sitting for months at a time time, diesel is quite stable if
measures are taken to prevent condensation in the storage tank.
Diesel stored in tanks can become contaminated by water (usually
condensate). If this happens, 3% to 5% isopropyl alcohol can be added
to the fuel, but ONLY in the case of this being fuel that will be used solely
in the heating system.
If your Wallas® product’s diesel supply is the same as the main engine, DO
NOT add isopropyl alcohol to the fuel. Adding alcohol to fuel eliminates
any natural lubricity from the fuel. While fuel lubricity is not important to
Wallas® products, it is critical to diesel engine fuel injection systems.
Kerosene Used here as a generic name, is also known as K-1 or paraffin (in
Europe). Wallas kerosene products can also burn 100% mineral spirits, or
other products specifically made for use as a kerosene replacement in
burner devices, including Klean-Heat. Good, clean, fresh kerosene is
excellent fuel for Wallas
® products. Unfortunately, some of the properties
of kerosene make its handling and storage very important when using it
for heating and cooking fuel.
From the moment kerosene is distilled, it is chemically changing, with
paraffin precipitating out of the solution into suspension and VOCs
(Volatile Organic Compounds) evaporating into the atmosphere. As this
happens, the fuel becomes less and less suitable for use in forced air
heating and cooking systems like Wallas® products. The following
conditions can accelerate the rate at which kerosene breaks down:
The presence of water (typically condensate) in the fuel
Light, particularly sunlight passing through the fuel
A large surface area (fuel air boundary)
Some tips on handling kerosene:
Buy small quantities from volume suppliers in opaque containers
that are full to the cap.
Store in a cool, dry place in an opaque container, filled to the
Replace fuel when it is 4 months old.
If fuel is in question, put a sample in a clear (glass) container.
Allow to stand for 1 hour. Look through the fuel into a moderate
light source (out a window, soft light, etc.) The fuel should be
transparent, not cloudy. Paraffin fallout will look like small
globules or clouds in the fuel. Fuel showing this characteristic is
well past its usable state. Dispose of any fuel that does not look