Bubble Boat Bubble No 1, Инструкция по установке и общие указания

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5
CLEARANCES FROM COMBUSTIBLES-FLUE PIPES
Flue pipes must be fitted in line with the distances
specified in the table and must be suitable for the
individual application.
Any combustible materials within the specified
distances from the appliances must be protected by a
suitable heat shield.
Protection can be gained by the use of -:
•
Sheet metal heat shields and spacers.
•
Heat resistant boards such as TAC board.
Combustible materials can be-:
•
Wooden furniture.
•
Curtains.
•
Wooden panels or frames adjacent to the flue
pipe or where it passes through the deck of
the boat.
•
Carpet or flooring close to the stove.
•
Items near to the stove, which could fall onto
it and ignite, should the boat suffer a slight
impact or collision.
VENTILATION.
Ventilation plays a vital role in the fitting and sighting
of any stove.
The provision of ventilation for these appliances is
adequately covered by the requirements of the boat
safety scheme.
25cm sq. minimum permanent ventilation, directly to
outside air, must be provided.
FLOODED VAPOURIZING BURNER POTS.
When attempting to light any of the appliances, make
sure that the pot is not flooded with oil by looking into
the base of the burner.
If it is flooded remove the excess oil.
Never try to relight a hot stove; wait until it has
cooled down.
Hot oil vapour is explosive.
Never try to light a flooded pot.
S
ECURELY
F
IX THE
A
PPLIANCE
The stove must be securely fastened down so that it
can resist impact or collision and it must be level in
both directions.
Level the stove in both directions when the vessel is
midway between its maximum and minimum trim
conditions.
Bubble appliances must not be fitted if the
maximum angle of trim exceeds 0.75 deg forward
to aft or port to starboard.
Only suitably qualified persons can install unvented
plumbing systems.
A suitable and serviceable fire extinguisher should
always be readily accessible.
3 3 . . C C H H I I M M N N E E Y Y
This is the one of the most interesting problems the
installer has to deal with and as the chimney affects
most aspects of running the stove, we take time here
to list the following information for your
consideration.
The power, ( suck or vacuum the chimney can develop )
depends upon the following-:
THE HEIGHT.
THE DIAMETER.
THE TEMPERATURE OF THE GASSES IN IT.
THE RESISTANCE OF THE INNER SURFACE OF
THE FLUE PIPE OR PIPES.
THE TYPE OF TERMINAL.
THE PREVAILING
ATMOSPHERIC CONDITIONS.
It is obvious that on a boat all the above elements are
in short supply.
Normally, we have low flues which are small in
diameter and generally not very well insulated, coupled
with all these problems we have another one, which is
that the boat moves across constantly changing
surroundings, through locks, into headwinds and
crosswinds, all creating major opportunity for down
draughting to occur.
Any bend in any part of the chimney or roughness on
the internal chimney wall will slow down the velocity of
rising gases and reduce the effectiveness of the
chimney.
Any slight reduction in the flue gas temperature will
reduce the chimney vacuum or pull, hence when the
stove is slowed down for all night burning, as the flue
gas cools down the chimney vacuum reduces and as the
chimney vacuum drops, the stove may well start to
burn sooty. This problem is highlighted even more
during very cold weather when the chimney can cool
down even faster. In these situations careful
attention to servicing and low fire setting is essential.