5.24 A
SILENT
KILLER
The American Boat and Yacht Council Inc. (ABYC) states:
Section 5.111: "Where heater is installed in an engine or bilge space, 100% fresh air shall be supplied
for combustion.
Section 6.1: "Burners shall be of the mechanical draft type which employs a power driven fan, blower
or other mechanism supplying air for combustion."
This means 100% fresh combustion air must be mechanically delivered through a sealed duct directly
to the heater from outdoors. This is the recommended procedure no matter where the heater is installed.
When combustion air is drawn from an unventilated heated space, the heater flame will become
increasingly yellow as the oxygen in that space is consumed. An oxygen-starved flame produces
excessive carbon monoxide (CO), some of which can easily escape the exhaust. Even with one
porthole barely open, air doesn't circulate enough.
Carbon monoxide is a colourless, odourless, tasteless gas produced any time you burn a carbon-based
fuel such as gasoline, wood, charcoal, kerosene, propane, or diesel. It disperses freely in the air and
can accumulate in enclosed spaces or air pockets. Boaters are especially vulnerable to the dangers of
CO because boats typically have gas or diesel engines, as well as fuel-burning appliances, and their
enclosed spaces tend to accumulate CO. Because CO is a cumulative poison, it can have fatal effects
even at low concentrations. It is absorbed by your lungs like oxygen, and attaches to your red blood
cells. When your blood can no longer transport sufficient oxygen to the brain and other tissues, you
essentially asphyxiate. Any device that burns fuel creates CO, so your cooking stove and heater are
both potential sources, especially if poorly ventilated.
The exhaust systems are under constant attack from salt water, gases, vibration, and normal wear.
Inspect every exhaust system aboard your boat on a routine basis. Start with a visual inspection. Check
each joint for discolouration, carbon buildup, stains, water leaks, or other signs of damage. Inspect all
metal parts for corrosion. Check that clamps are in good condition and secure. Ensure that all
ventilation systems are in good working order and not blocked. An untuned, poorly running engine or
heating appliance produces excessive CO. Make sure it is tuned up, maintained, and runs smoothly. It
should never produce black smoke.
Section 2.1: "All components including frames, fuel filters, solenoid valves, fuel pumps, blowers, shall
be of a type suitable for the application., i.e., resistant to corrosion in salt atmosphere, capable of proper
operation under conditions of vibration, shock, and the pitch and rolling action of the boat. Refer to
applicable ABYC standards. Gravity hot water, gravity hot air and high pressure steam systems are not
recommended for boat use."
Make sure the heater you intend to buy is constructed of corrosion resistant material including the
internal parts like the burner, combustion chamber, and water jacket. Parts made of steel or even
painted steel will corrode and are very expensive to replace besides being dangerous to your health.
All the major parts of the "Hurricane Heater" are constructed of corrosion resistant materials.
Содержание CO105D
Страница 14: ...Figure 2 1 Component Parts CO Model See Chapter 8 for complete Parts Listing...
Страница 15: ...Figure 2 2 Typical Installation...
Страница 51: ...FIGURE 8 1 HEATER ASSEMBLY...
Страница 52: ...FIGURE 8 2 COMPONENT BOX ASSEMBLY...
Страница 53: ...FIGURE 8 3 WATER JACKET AND BURNER BOX ASSEMBLY...
Страница 54: ...FIGURE 8 4 BURNER TUBE ASSEMBLY...
Страница 55: ...FIGURE 8 5 COMBUSTION FAN ASSEMBLY...