Hunter Stoves TELFORD INSET ROOMHEATER Original operating instructions

Instructions for the Installation & Operation of
HUNTER TELFORD INSET
ROOMHEATER
Please hand these instructions to the stove user when the installation is
complete. Leave the system ready for operation and instruct the user in
the correct use of the appliance & operation of controls.

HUNTER TELFORD INSTALLATION INSTRUCTIONS
It is important that your stove is correctly
installed as Hunter Stoves Limited cannot accept
responsibility for any fault arising through
incorrect installation.
Care should be taken that all flues, hearths,
combustion air supplies should be in accordance
with current Building Regulations, Local
Authority Bye-Laws, British Standards and
Codes of Practice. Ensure that any electrical
wiring is correctly earthed.
Any connections to electrical and gas services
must satisfy the relevant regulations and be made
by competent persons.
INSTALLATION
1.0 CHIMNEY REQUIREMENTS
Check that the chimney is in good condition, dry,
free from cracks and obstructions. The diameter
of the flue should not be less than 125mm and not
more than 230mm. If any of these requirements
are not met, the chimney should be lined by a
suitable method.
The chimney height and the position of the
chimney terminal should conform to Building
Regulations.
A flue draught of minimum 1.5mm to a
maximum 2.5mm water gauge is required for
satisfactory appliance performance. The flue
draught should be checked under fire at high
output and if it exceeds the recommended
maximum, a draught stabiliser must be fitted so
that the burning rate can be controlled, and to
prevent overfiring.
If you have any doubts about the suitability of
your chimney, consult your local dealer/stockist.
The chimney must be swept before connection
to the stove.
2.0 THE HEARTH
The stove must stand on a fireproof hearth at
least 300mm from any combustible material.
The hearth must be at least 125mm thick and
extend in front of the stove by a minimum of
300mm and to the sides by a minimum of
150mm.
3.0 THE FIREPLACE
The flat area around the opening must be a
minimum of 660mm wide and 710mm high.
The appliance will fit into a standard builders’
opening. Non-standard openings should be
altered to fit. The hearth and the base in the
opening must be flat and at right angles to the
surround. The base of the opening must be level
and flush with the hearth.
One hole must be made in the front of the
chimney breast to give access for connecting the
flue pipe and infilling, and other hole(s) as
necessary should be made in the side of the
chimney breast to give access for connecting the
pipework.
4.0 CENTRAL HEATING SYSTEM
The central heating system must be installed by
a qualified heating engineer.
When connecting the boiler, care must be taken
that the stove is not pulled out of level by the
pipework. It is recommended that all four
tapings be used for systems incorporating
separate gravity and pumped heating loops.

Each flow and similarly each return should be
taken from diagonally opposite sides of the
boiler. Where a common return is used an
injector tee must be incorporated into the system
to improve circulation.
To prevent boiler corrosion due to condensation,
it is necessary to maintain the return water
temperature above a minimum 450C. This can be
achieved by fitting a suitable mixing valve or
electrical control. External corrosion resulting
from condensation caused by the cold return will
shorten the life of the boiler and will invalidate
the guarantee. A build up of scale and corrosion
within the boiler should be prevented by the use
of a chemical inhibitor.
5.0 GRAVITY CIRCULATION – HEAT
LEAK
A double feed indirect cylinder (British Standard
compliant) must be used for domestic hot water
supply. This must be heated by gravity
circulation, together with a heat leak radiator with
an output of at least 1kW. This will ensure heat
dissipation from the boiler when the heating
pump is off for any reason and provide minimum
load. The cylinder must be adequately lagged and
the system properly vented. It is imperative that
the combined heating/domestic hot water load on
the boiler does not exceed the stated output.
Overfiring the stove can lead to serious damage.
6.0 FITTING THE STOVE
Put plugs into any of the boiler tapings not being
used.
Apply fire cement and a length of sealing rope all
around the rear face of the sealing flange; the
cement will hold the rope in place whilst the
stove is put into position. Fit the stove into the
opening, making sure that it is central and flush
with the wall. Ensure that the stove cannot move
once fitted. If necessary fix a M6 10L rawbolt
into the hearth directly in front of the left
and right hand sides of the stove.
Connect the heating system to the stove,
fill with water and check for leaks.
7.0 CONNECTION OF STOVE TO FLUE
AND INFILLING
A short length of 125mm diameter flue pipe
should be used to connect the stove to the
chimney. The end of the pipe should line up with
the centre line of the chimney using an offset
adapter if necessary. Make sure that the end of
the flue pipe is not obstructed in any way, and is
no closer than 76mm to the side or rear chimney
walls.
After checking for any water leaks, and covering
the stove to protect it, the space between the
stove body and the surrounding brick/stonework
should be filled with an insulating material such
as vermiculite concrete. The recommended mix is
six parts of vermiculite granules to one part of
portland cement. Sufficient water should be
added so that only a couple of drops of water can
be squeezed out of a handful of the mixture. The
top of the flue pipe should be flaunched too the
chimney to ensure a good streamlined entry and
to eliminate any ledges where soot could collect.
Fill in the holes in the front of the chimney
breast, making sure that they are completely
airtight.
8.0 FINAL STOVE ASSEMBLY
Before lighting the stove, check the following:-
8.1 That the grate bars are all fitted and will
riddle freely when the mechanism is operated.
8.2 That the throat plate is correctly located in the
roof of the appliance.

8.3 The front fire bar should be fitted so that the
lattice pattern is on the front, and the small turrets
are uppermost. It will only fit in the correct
position.
9.0 COMMISSIONING
Upon completion of the installation, and after
allowing a period of time for the fire cement and
mortar to dry out, the stove should be checked
under fire for soundness of joints and seals. Also
check that all smoke and fumes are taken from
the appliance, up the chimney and emitted safely.
The installer should balance the heating system,
set the pump head, etc. ready for operation.
It is recommended that a subsequent visit be
made to check the satisfactory performance of the
system. Bleed radiators, check balances and the
flue draught and the householder’s correct usage
and understanding of the appliance.
OPERATING INSTRUCTIONS
1.0 THE CONTROLS
1.1 Multifuel Grate – The Hunter Telford is
fitted with a locomotive type grate, and so that
de-ashing can be carried out cleanly and easily, it
is riddled from the outside of the stove with the
doors closed. The grate is designed to burn both
wood and solid fuels.
To burn wood, allow the ash to build up on the
bars of the grate so that the wood burns in its own
ashes. Do not riddle the grate unnecessarily.
When burning solid fuels, it is important that the
grate is riddled to remove ash and ensure an
airflow through the firebed, which will allow the
fire to burn over the entire area of the grate. The
ashpan should be emptied daily and ash should
not be allowed to build up over a period of time
as this will result in damage to the firebars.
1.2 Air Controls – The stove has been designed
to burn cleaner and more effectively than a
conventional wood burning stove.
If used correctly the stove will burn far more
efficiently than normal with the obvious notable
feature of CLEAN GLASS.
However, for this product to work properly it
must be used correctly.
1.21 Primary Air – Primary air is controlled via
the spinners in each door, this provides a
conventional air draught to the bed of the fire.
1.22 Secondary Air – Secondary air is controlled
via the slider above the doors, it is this “airwash”
that keeps a clean and uninterrupted view of the
fire, also aiding in good secondary combustion of
the fuel and reducing emissions into the chimney
and environment.
2.0 LIGHTING THE STOVE
Before lighting the stove for the first time, check
with the installer that the chimney is sound, has
been swept and is clear of any obstructions and
that the installation has been carried out
according to the instructions.
Load the fire with starting fuel i.e. paper, dry
sticks and/or fire lighters in the mode chosen,
either wood or coal.
Light the fire at base leaving all air controls open.
Allow the fuel to reach a steady glow and build
the fire up gradually. Once you have a good fire
established across the grate bed, further fuel can
be added as required.
When your fuel is well alight you can start to
restrict the primary air intake. If you are burning
only wood, the primary air control can be fully
closed. If you are burning solid fuel you will
require more primary air.

When first lit, the stove may give off an odour as
the paint with which the firebox is treated reacts
to temperature. This is quite normal, and will
cease after a short time. It is non toxic but for
your comfort we would suggest that windows and
doors are left open.
2.1 Woodburning – Wood burns best on a bed of
ash and it is therefore only necessary to remove
surplus ash from the stove occasionally.
Burn only dry, well seasoned wood, which should
have been cut, split and stacked for at least 12
months, with free air movement around the stack,
enabling it to dry out. Burning wet or unseasoned
wood will create tar deposits in the stove and
chimney and will not produce a satisfactory heat
output.
2.2 Solid Fuel Burning – Always de-ash before
refuelling and do not let the ash build up to the
underside of the grate bars. Solid fuel produces
ash, which if allowed to build up will stifle the
airflow through the grate and eventually cause the
fire to die.
With some solid fuels a residue of burnt fuel or
clinker will accumulate on the grate, allow the
fire to go out periodically to remove this.
3.0 DE-ASHING
To de-ash the stove place the supplied riddling
tool onto the spigot which is located on the right
hand side of the stove. Move the lever up and
down until the required amount of de-ashing has
occurred.
NOTE: The grate support ledge on the left of the
stove must be kept clear to avoid fine particles of
ash becoming compacted in the space allowed for
the riddling movement of the bars, causing them
to distort when they expand with heat.
4.0 ASHPAN REMOVAL
Having riddled and using the spanner end of the
operating tool, open the fire doors – do not apply
undue pressure.
Use the hoe end of the operating tool to pull the
ashpan out of the stove. The ashpan may then be
carried horizontally. Always allow the ash to cool
before disposing of it.
5.0 PROBLEMS
If the fire is sluggish or does not burn adequately,
check that there is an adequate air supply to the
room in which the stove is situated, and then make
sure that the throat plate, all flueways and chimney
are clear and free from any obstruction. Chimneys
must be kept clear and swept frequently especially
when fuels which produce large amounts of soot
are used.
DO NOT OVERFIRE – it is possible to fire the
stove beyond its design capacity, causing it to
overfire in certain circumstances e.g. excessive
draught in abnormal weather conditions.
If any part of the stove starts to glow red, the fire is
already in an overfire situation and the controls
should be immediately adjusted accordingly.
IMPORTANT NOTE - Do not light the fire if
you suspect that any part of the water system is
frozen. Do not light before connection to the water
system.
FUME EMISSION – CARBON MONOXIDE
FUMES CAN KILL – properly installed and
operated, this appliance will not emit fumes.
Occasional fumes from de-ashing and refuelling
may occur but persistent fume emission is
potentially dangerous and must not be
tolerated.