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SITE REQUIREMENTS
Position On Roof Minimum Clearances
A
On ridge or within 600mm 600mm above ridge
B
Elsewhere on roof 2300mm horizontally from roof surface and:
a) 1000mm above highest point of flue exit from roof or
b) as high as the ridge
C
On pitched, within 2300mm horizontally to
openable window, dormer
1000mm above top of opening
D
Within 2300mm of another building 600mm above top of building
1. FLUE OUTLET POSITIONS
150mm
max
Vertical
Measurement
Terminal
Insulation
Flue
Horizontal
Measurement
Adjacent
Building
The vertical measurement is the lowest from either the
point of discharge or 150mm above insulation.
IMPORTANT: Seek
specialist advice if installing
in a dwelling with a
thatched roof
2. MINIMUM DIMENSIONS - HEARTH
2.1 The appliance must stand on a non-combustible
constructional hearth which is at least 125mm thick with
the minimum dimensions as shown in diagram. If it is to be
fitted in a raised setting consideration may need to be given
to extending the depth of the hearth to safely containing
any falling logs or embers.
2.2 The building must have a suitable load-bearing capacity for
the hearth and appliance.
•Consultastructuralengineerforadvicebeforeproceeding
2.3 When fitting into an existing hearth check:
•Thattheappliancecomplieswithcurrentconstruction
regulations and is at least the minimum sizes shown
2.4 If there is no existing fireplace or chimney it is possible to
construct a suitable non-combustible housing and hearth
setting. The flue must be installed in accordance with all
local and national regulations and current rules in force .
•Checkifaddinganewchimneytoyourpropertyrequires
planning permission
2.5 Some houses are built using a timber frame construction
with high levels of thermal insulation. Isolate the appliance
from combustible materials, and provide sufficient
ventilation to maintain the heating efficiency.
Constructional hearth
1
Superimposed hearth
or
area to be free of
combustible material
Riva 40 Riva 55 Riva 66 Riva 66 Avanti Riva 76
RV40 RV55 RV66 RV66 AVC RV76
A
792mm
932mm
1042mm
1042mm
1162mm