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SECTION C:
FUEL GUIDE
The Toyostove Laser 73/Laser 73AT is designed for use with ASTM D3699 1-K kerosene, ASTM D396 Low
Sulfur No.1 Fuel Oil, or ASTM D975 Ultra Low Sulfur Diesel (ULSD). Use of low-quality fuel will cause burner
performance to drop, leading to abnormal combustion and reduced heater life.
Purchase only ASTM D3699 1-K kerosene or ASTM D396 Low Sulfur No.1 Fuel Oil, or ASTM D975 Ultra Low
Sulfur Diesel (ULSD) in non-red cans reserved exclusively for kerosene and marked accordingly with the word
"KEROSENE", "No.1 FUEL OIL", or "ULTRA LOW SULFUR DIESEL". Always store your fuel in a separate area
from where you store gasoline for your power equipment to avoid accidental use of gasoline in your heater.
What to Buy . . .
Clean and high-quality ASTM D3699 1-K Kerosene, ASTM D396 Low
ALWAYS :
Sulfur No.1 Fuel Oil, or ASTM D975 Ultra Low Sulfur Diesel (ULSD).
ALWAYS :
Fuel free of contaminants, water or cloudiness.
Gasoline, alcohol, white gas, camp stove fuel or additives.
NEVER :
NEVER :
Yellow or sour-smelling fuel.
How to Store It . . .
Store in a clean container, non-red in color, clearly marked
ALWAYS :
KEROSENE, No.1 FUEL OIL, or ULTRA LOW SULFUR DIESEL.
ALWAYS :
Store away from direct sunlight, heat sources or extreme tem-
perature changes.
In a glass container, or one that has been used for other fuels.
NEVER :
NEVER :
For longer than six months. Begin each heating season with
fresh fuel; discard at the end of season.
NEVER :
In the living space.
Why It is Important . . .
Good, clean fuel is essential for safe and efficient heater operation. Poor
quality or contaminated fuel can cause:
¡Excess tar deposits on burner and flue pipe
¡Incomplete combustion
¡Reduced heater life
Use of a highly volatile flammable fuel such as gasoline can produce
uncontrollable flames, creating a severe fire hazard.
Note: The fluidity of Ultra Low Sulfur Diesel becomes worse at temperatures of
21˚F (-6˚C) and below and can "gel". This condition may cause ignition
failure. To prevent congealing it is recommended to use an additive with the
fuel. Check with a fuel supply company for the proper additive and mix.
GAS
5
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