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Flue gas flow rate
Wood /coal
Test flue gas temperature
wood /coal
@ pascals of pressure
Loxton 3
3.6
/4.1g/sec
253/243 deg C
12 pa
Tested Gas flow rates flue
gas temperatures
Chimney Connec�on
In order for the stove to perform sa�sfactorily the chimney height must be sufficient to ensure an
adequate draught to clear the products of combus�on and prevent smoke problems into the room.
Stove model
Weight &
Nominal heat output for Wood and Smokeless fuels
Loxton 3
Log length
Wood reload
Weight wood load
Wood Size
Coal reload
Weight coal (anth)
20cm
1hr
700 g
25 x 7 x 10cm
2hr
700 g
Output
wood
fuel
Efficiency CO@13%
o2
Recommended
for smoke control
Oct 2012
Minimum
Posi�on air
stop SE model
Output coal
fuel
Efficiency
CO@13%
o2
Loxton 3
4.0kw
81.4%
0.06
Yes / SE model
25%
4.0kW
80.9%
0.05
(5mm min air)
NOTE: A chimney height of not less than 4.5 metres measured ver�cally from the outlet of the stove
to the top of the chimney should be sa�sfactory. Alternately the calcula�on procedure given in
BS 5854:1980 may be used as the basis for deciding whether a par�cular chimney design will provide
sufficient draught.
The outlet from the chimney should be above the roof of the building in accordance with the provisions
of Building Regula�ons Approved Document J. If installa�on is into an exis�ng chimney then it must be
sound and have no cracks or other faults which might allow fumes into the house. Older proper�es, especially,
may have chimney faults or the cross sec�on may be too large .
Mendip Stoves recommend the use of a solid fuel flue lining system for all installa�ons into exis�ng chimneys.
All chimney systems must be used in accordance with Building Regula�ons Approved Document J.
If an exis�ng chimney is used the chimney must be clear of obstruc�on and be swept clean immediately before
installa�on of the stove. The chimney should be tested to confirm the chimney will provide the correct chimney
pressure for the stove. If the stove is fi�ed in place of an open fire the chimney should be swept one month
a�er installa�on to clear any soot falls which may have occurred due to the difference in combus�on between
the stove and the open fire. If there is no exis�ng chimney then either a prefabricated block chimney in
accordance with Building Regula�ons Approved Document J or a twin walled insulated stainless steel flue
to BS 1856-1.
Insulated chimneys must be fi�ed in accordance with the manufacturer’s instruc�ons and Building Regula�ons.
A single wall metal flue pipe is suitable for connec�ng the stove to the chimney but is not suitable for using for the
complete chimney. The connec�ng flue pipe must have a minimum diameter of 125 mm and its dimension
should be not less than the size of the outlet socket of the stove. Registered smoke exempt models burning
wood only can be installed on a flue of 125mm throughout. Any bend in the chimney or connec�ng flue pipe
should not exceed 45. 90 degree bends should not be used other than within 150 mm of stove rear flue outlet.
A chimney height of not less than 4.5 metres measured ver�cally from the outlet of the stove to the top of
the chimney should be sa�sfactory. Alterna�vely the calcula�on procedure given in BS5854:1980 may be used
as the basis for deciding whether a par�cular chimney design will provide sufficient draught.
If it is found that there is excessive draught in the chimney then either an adjustable flue damper or alternately
a draught stabiliser should be fi�ed. The adjustable flue damper should not close off the flue en�rely but should
in its closed posi�on leave a minimum con�nuous opening free area of at least 20 % of the total cross sec�onal
area of the flue or flue pipe.
Adequate provision e.g. easily accessible soot door or doors must be provided for sweeping the chimney and
connec�ng flue pipe.
Your appliance needs to be maintained rou�nely, the throat plate/baffle should be cleaned regularly (monthly)
The flue pipe can be cleaned using a flexible brush. Only use a dry cloth on external surfaces. Over �me the
glass may become dirty, Clean with a damp cloth and polish off with damp cloth. If the stove has not been
used for some �me the flue should be checked for blockages before use. Do not modify the appliance; only
use spares authorised by the manufacturer.
FLUE & CHIMNEY CONNECTION TO STOVE
STOVE PERFORMANCE & TESTING
Mendip Stoves are approved and tested in accordance with EN 13240.
Summary of Contents for Loxton 3
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