Inis Mor MK2 Boiler stove
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of the draught. 90 degree bends must be
avoided in the flue system. The flue
collar and the blanking plate have seal-
ing rope fitted to them and must be
checked that they are fully tight before
fitting. The installer must ensure that
the chimney and or flue system is in-
stalled correctly as Inis Stoves is not
responsible for incorrect installation.
Soot doors
Where the flue is installed from the
rear flue outlet, the use of a soot door
is necessary for proper sweeping of the
chimney and removal of the soot. Ade-
quate access to the soot door is neces-
sary. The soot door may be placed in the
existing block work or on a suitable
register plate between the flue pipe and
the chimney.
Central heating and do-
mestic hot water systems
The stove can be used to heat both hot
domestic water and central heating. It
is best practice to have a radiator fit-
ted in the room the stove is to be fit-
ted to allow greater flexibility in
heating this room.
The stove is designed for open vent cen-
tral heating systems and a gravity feed
circuit usually to the domestic hot wa-
ter should be present. This gravity feed
circuit should rise directly up from the
stove and be vented at the top to atmos-
phere. A minimum of 1” diameter piping
must be used on the gravity circuit and
this circuit must not exceed 8 meters
distance from the stove. An unvalved
heat sink radiator should be fitted to
the gravity circuit with a heat capacity
of 1.5Kw to allow for the removal of ex-
cess heat in the case of a pump failure.
Each plumbing circuits to and from this
appliance MUST be cross-connected.
It is important that the return water
temperature is not too low (below 45 de-
grees Centigrade), to avoid excess con-
densation in the boiler, gas ways and
chimney and avoid corrosion. This can be
achieved by the fitting of a low limit
thermostat on the return pipe on the
gravity circuit that will stop the pump
if the water temperature drops to low on
the gravity return circuit.
The plumbing circuit should always have
a drain cock at the lowest point to fa-
cilitate the draining of the system if
required. An injector Tee must be fitted
to the return of the gravity and pumped
circuits if they are to be connected to-
gether. There are numerous methods of
connecting this stove into a pressurised
heating system. Please contact Inis
Stoves to discuss.
System controls
The stove is controlled by the single
control dial on the left hand side of
the stove once it is alight. The “Easy
start” manual damper must be closed once
the stove is fully alight if the heating
controls are automated. Please check the
user manual for proper operation. The
heating system can be controlled by sys-
tem links, time switches or other con-
trols provided that an unvalved heat
sink radiator is present and a low limit
pipe stat is fitted to the gravity re-
turn pipe to the stove. There should al-
ways be a high limit pipe stat fixed on
