Stuv 21 - Creosote and Chimney-Sweeping; Pulleys and Counterweights

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MAINTENANCESTÛV 21
The Stûv 21 range of fireplaces is equipped with a guillotine door that works with a
system of pulleys and counterweights. The basic principle is quite simple:
1. A steel wire is attached to a hook at the bottom of the glass frame.
2. The cable is then placed on a pulley fixed on the top of the unit.
3. The second end of the wire hooks onto a free counterweight located on the
sides of the fireplace.
4. When you lift the handle located at the bottom right or left of the glass, an
upward movement brings the counterweight down, giving you access to the
fireplace hearth.
For details on how to operate and reinstall the cable of the pulleys, see section
INSTALLATION on page 33.
Creosote is a thick, black, brittle or
smooth (vitrified) residue resulting from
incomplete combustion of wood. During
slow combustion, the wood releases
tar droplets that condense on the cold
chimney lining. The shape of the residue
varies as a result of the time and the
internal temperature of the lining on
which the creosote vapors condenses.
This build-up of creosote can be very
hazardous. When ignited, it produces an
extremely hot fire in the chimney. Have
your chimney professionally inspected
every two months during the heating
season to assess whether or not a
creosote build-up has occurred. If so,
remove any built-up residue to reduce
the risk of a chimney fire.
Before carrying out a complete
sweeping, Stûv recommends using
a dose of Fulgurant (a product that
decomposes soot) to thoroughly clean
the glass of the appliance. Use a product
compatible with the type of chimney flue
installed. Refer to product instructions
for use during maintenance.
Soot Removal Steps - Before doing
the maintenance, wait until the unit has
cooled down completely.
1. If sweeping is done from the inside,
slide the glass upwards.
2. Remove the top vermiculites
supported by the baffle kit.
3. If sweeping is done from above,
lower the glass door by pressing
down on the cylinder grip.
4. Carry out the sweeping according to
local regulations.
.3 CREOSOTE AND CHIMNEY-SWEEPING .4 PULLEYS AND COUNTERWEIGHTS
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