Jotul F 500 - Handbuch (Seite 36)

36
Maintenance
Cleaning the glass
Jøtul F 500 is equipped with top draught (air wash). Through
the draught vent air is sucked in above the fireplace and washed
down along the inside of the glass. This system has the
advantage that it provides better combustion and reduces the
buildup of soot deposits on the glass.
Still, some soot will always stick to the glass, but the quantity
will depend on the local draught conditions and adjustment of
the draught vent. Most of the soot layer will normally be burned
off when the draught vent is opened all the way and a fire is
burning briskly in the fireplace.
Good advice! For normal cleaning, moisten a paper towel with
warm water and add some ash from the burn chamber. Rub it
over the glass and then clean the glass with clean water.
Ash removal
Jøtul F 500 has an ash pan which makes it easy to remove the
ash. Scrape the ash through the grate in the base plate and into
the ash pan. Use something like a glove to grab the handle on
the ash pan and take away the ash. Make sure that the ash pan
doesn’t fill up so high that it keeps ash from coming through
the grate into the pan.
Make sure the door to the ash pan is securely shut when the
stove is in use.
It is always an advantage if some ashes remain in the burn
chamber as a protective layer against the oven base. Also see
the description of how to handle ashes under Measures to
prevent fires.
Cleaning and soot removal
Soot deposits may build up on the internal surfaces of the
stove during use. Soot is a good insulator and will therefore
reduce the stove’s heat output.
An annual internal cleaning is necessary to get the best heating
effect from the product. It is a good idea to do this in connection
with the sweeping of the chimney and flue pipes.
Sweeping of flue pipes to the
chimney
Sweeping of the flue pipes is carried out by lifting the loose
oval top plate. This gives easy access for sweeping. It is possible
to sweep through the sweeping hatch in the flue pipe or
through the product door opening. In that case the baffle plate
has to be removed first. See appropriate sections under: Service
Control of the stove
Jøtul recommends that you personally control your stove
carefully after sweeping/cleaning. Check all visible surface areas
for cracks. Also check that all joints are sealed and that the
gaskets are in the correct position. Any gaskets showing signs
of wear or deformation must be replaced.
Thoroughly clean the gasket grooves, apply ceramic glue
(available from your local Jøtul dealer), and press the gasket
well into place. The joint will dry quickly.
External maintenance
Painted products may change color after several years usage.
The surface should be cleaned and brushed free of any loose
particles before new Jøtul stove paint is applied.
Enameled products must only be cleaned with a clean, dry
cloth. Do not use water and soap. Any stains can be removed
with a cleaning fluid. (Oven cleaner etc.).
The length, quantity and quality of
logs
The maximum length of logs to be used is 55 cm. Logs should
be placed parallel to the back wall of the combustion chamber.
Minimum heat emission from a Jøtul F 500 is 4.0 kWh, and the
nominal capacity 8.0 kWh. The calculated requirement for
nominal heat emission is approx. 2.8 kg quality wood per hour.
Jøtul’s definition of quality wood
Good quality wood should be dried so that the water content
is approx. 20-25%.
To achieve this, the wood should be cut during late winter or
early spring. It should then be cut and stacked to ensure proper
airing. The stacks should be covered to prevent them from
absorbing too much rainwater. The logs should be taken
indoors in autumn for use during the winter season.
With good quality firewood we mean logs from trees, such as
birch, beech and oak.
The amount of energy obtainable from 1 kg of wood varies
very little. On the other hand, the specific weight of the different
kinds of wood varies considerably. As an example, a certain
volume of birch will provide less kWh than the same volume
of oak, which has a higher specific weight.
The amount of energy in 1 kg quality wood is approx. 3.8 kWh.
1 kg of completely dry wood (0 % humidity) produces
approximately 5 kWh, while wood with a humidity level of
60% produces only around 1.5 kWh/kg.
ENGLISH