Instruction manual

3
water coils are available in a 1 turn coil to heat approx. 5-10 gallons of
water. Hot water coils are also available in 2 turn coils to heat approx. 15-20
gallons of water.
2. Important Notes
Here are some important notes to remember when installing a Sig Marine
diesel heater:
• Mounting & location, 12v power hook-up, minimum 4ft and a
maximum 10ft of chimney, the location of hole for the chimney & the
fuel supply.
• VERY IMPORTANT: Unrestricted permanent fresh air inlet
required to draw in outside air needed for correct operation.
• Fuel must be filtered and not exceed a pressure of 4 psi or a fuel
pressure regulator must be used to avoid dangerous flooding.
• A barometric damper must be installed to help regulate the draft. A
barometric gives you more control in the “fuel to air” mixture needed
for correct operation. The valve controls the fuel whereas the fan
increases the air and the barometric decreases the air (See Pg. 7/8).
• Install a CO alarm.
3. Ventilation
Do NOT operate this heater in an enclosed area without a permanent fresh air
inlet designated for your heater. This is required to draw in outside air for
correct operation. To guarantee that fresh air is available for your heater, good
ventilation is essential. You MUST replace the air inside your boat at the same
rate that the heater is removing it. The higher the heater’s burning rate, the more
air the heater will require. If the air flow is blocked or restricted, the heater will
burn inefficiently, create soot, blow out and can even be a very dangerous health
hazard.
A permanently open fresh air inlet MUST be installed or dedicated to the heater.
This inlet must be at least 3" in diameter. Ducting to the heater is also an option.