SITE REQUIREMENTS
2. FLUE OUTLET POSITIONS
IMPORTANT: Seek specialist advice if installing in a dwelling with a thatched roof
Terminal
Flue
Horizontal
Measurement
Vertical
Measurement
150mm
max
Insulation
Adjacent Building
|
| The vertical measurement is the lowest from either the |
|
| point of discharge or 150mm above insulation. |
|
|
|
| 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 | 1000mm above top of opening |
| openable window, dormer |
|
D | Within 2300mm of another building | 600mm above top of building |
3. Minimum dimensions - HEARTH
1
150
225 
500
Superimposed Hearth (or area to be free of combustible material)
150Constructional
Hearth
A
3.1 | The appliance must stand on a |
| 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. |
3.2 | The building must have a suitable |
| the hearth and appliance. |
| • Consult a structural engineer for advice before |
| proceeding |
3.3 | When fitting into an existing hearth check: |
| • That the appliance complies with current construction |
| regulations and is at least the minimum sizes shown |
3.4 | If there is no existing fireplace or chimney it is possible to |
Dimension | A |
|
|
16" | 720 |
|
|
22" | 870 |
24" | 920 |
26" | 970 |
28" | 1020 |
| construct a suitable |
| setting. The flue must be installed in accordance with all |
| local and national regulations and current rules in force. |
| • Check if adding a new chimney to your property requires |
| planning permission |
3.5 | 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. |
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