Stovax 7118 - Manual (Page 6)

6
oPeRATING INSTRUCTIoNS
retainer, scoop out the ash with a suitable shovel. It is best
to leave a layer of ash in the stove to form a bed for the
new fire.
7.4 Do not place ash in a bin made from plastic or any other
combustible material.
8.1 Wood: - Burn only seasoned timber, with a moisture
content of less than 0%. In most cases, this would require
drying cut wood for 1 to 18 months before use. Poor
quality timber could cause low combustion efficiency,
produce large amounts of harmful condensation, which
could reduce the effectiveness of the airwash system, and
ultimately the life of the stove.
do not burn painted, impregnated wood or
manufactured board products.
To help avoid large build-ups of tars and creosote within
the stove and the flue system, it is recommended to burn at
maximum output for at least 0 minutes each day. The use
of Stovax Protector chimney cleaner will also help to reduce
this problem.
8. Solid fuel: - Burn only manufactured smokeless fuels listed
as suitable for use with closed heating stoves. do not burn
bituminous coal, ‘petro-coke’ or other petroleum based
fuels, as this will invalidate any product guarantee.
8. Fuel consumption at nominal heat output.
As tested to the requirements of EN140 for nominal heat
output.
Fuel Consumption
description
Kg/Hour Kg/Hour
Wood Briquetted
Smokless Fuel
Stockton  1.4 0.7
Stockton 4 1.4 0.7
Stockton 5/5ML 1.5 0.7
Stockton 6/6HL 1.9 0.9
Stockton 7 .4 1.1
Stockton 8 .8 1.
Stockton 11 .5 N/A
Fuel consumption for canopy models is the same as
equivalent flat top model.
If you require advice on suitable solid fuels contact your
local Approved Coal Merchant. Details can be obtained by
ringing the Solid Fuel Association advice line on Freephone
0800 600 000. Or their web site at www.solidfuel.co.uk
A number of factors can affect the performance of the
Stockton stove. Some of these are listed.
9.1 Fuel Quality (Wood)
Use only seasoned wood with a moisture content of
less than 0%. Well seasoned logs should have the bark
beginning to lift and peel away, along with deep cracks
radiating from the centre of the log. Logs should feel lighter
than fresh cut wood of a similar size and sound hollow
when struck against each other. Logs should not feel damp
to the touch, have any visible moisture oozing from them or
moss and fungal growths on them.
Symptoms of poor performance related to wet woods
include:
• Difficulty getting a fire going and keeping it burning well,
• Smoky fires with little flame,
• Dirty glass,
• Dirty firebricks,
• Rapid creosote build-up in the chimney,
• Low heat output,
• Short burn times, excessive fuel consumption and blue/
grey smoke from the chimney.
9. Fuel Quality (Solid Fuel)
Use only recommended solid fuels, which are approved for
use with closed appliances. Symptoms of poor performance
related to unsuitable fuels include:
• Difficulty getting a fire going and keeping it burning well,
• Smoky fires with little flame,
• Dirty glass,
• Dirty firebricks,
• Short life span for grate, baffles and internal firebricks,
• Permanent staining of glass.
9. Backpuffing
This is caused by a lack of combustion air entering the
firebox causing combustion gases to build up in the firebox
and periodically ignite as small explosions, causing smoke to
puff out of the appliance air inlets and other openings. The
problem will often occur if the air controls are shut soon
after adding new fuel to a very hot fire. To stop backpuffing
occurring open the air controls to increase the combustion
air and increase the burning rate.
8. ReCoMMeNded FUelS
9. BURNING PeRFoRMANCe