11
4.8
HEATING AND HOT
WATER SYSTEM
The central heating system must comply
with BS5449 part 1.
The hot water cylinder must be indirect
and should comply with BS1566 part 1.
The system must be open vented and the
header tank should not be more than 12
meters above the boiler.
In case of pump failure or a power cut,
the system should be able to work on
gravity to the hot water cylinder.
In addition, the fire should be quenched,
using best practice. Dumping of hot water
(i.e. running hot water taps) may be
required.
NOTE: The system should never be valved.
Depending on the size of the room into
which the appliance is fitted, a radiator in
the same room may give greater flexibility
in operating the system and ensure
sufficient heat to the room.
4.9
SYSTEM CONTROlS
The system pump may not be controlled
by time switches. The inset stove can be
controlled with a pipe thermostat. Ensure
that all controls are installed to building
regulations.
Radiators can be fitted with thermostatic
or manual valves. Please note: no valves
must be fitted to radiators where they act
as the heat leak.
4.10 CHECKS BEFORE lIGHTING
NOTE: Prior to lighting the inset stove,
allow sufficient time for the back fill to dry
at normal conditions.
The following checks should be carried out
prior to lighting a fire in the inset stove:
1. The fire grate is in place.
2. The flue is clear.
3. Ensure that baffles are in place.
4. Check the door fitting.
5. The system is full with water and
vented.
6. Has a suitable inhibitor been added?
4.11 COMMISSIONING
Light the fire and check all joints and seals.
Ensure that fumes and smoke are being
taken up the chimney and no fumes are
entering the room.
The heating system should be balanced in
accordance with best plumbing practice.
Before completing the commissioning,
the householder should be advised as to
the operation of the inset stove and the
heating controls.
The instruction manual should remain
with the householder.
CO Alarms:
Building Regulations require that
whenever a new or replacement, fixed
solid fuel or wood/biomass appliance
is installed in a dwelling, a carbon
monoxide alarm must be fitted in the
same room as the appliance. Further
guidance on the installation of the
carbon monoxide alarm is available in
BS EN 50292:2002 and from the alarm
manufacturer’s instructions. Provision
of an alarm must not be considered a
substitute for either installing the
appliance correctly or ensuring regular
servicing and maintenance of the
appliance and chimney system.
