SITE REQUIREMENTS
4. Minimum Builders opening
To make installation easier make the opening larger than the minimum requirements where possible.
*see note
†
Riva 55/66/76 only
If optional convection air ducts are to be used, increase the opening height by 300mm to enable connection to be made before final completion of building work.
Riva 66/76 only
Dimension C may be reduced to 355mm when using the spacer frame kit.
Consideration must be given for the clearance of 20mm between the flue pipe and lintel/inside chimney breast
5. riva MF cassette
| Riva 40 | Riva 55 | Riva 66 | Riva 66 Avanti | Riva 76 |
| RV40 | RV55 | RV66 | RV66 AVC | RV76 |
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A | 410mm | 550mm | 660mm | 660mm | 770mm |
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B | 560mm | 670mm | 560mm | 560mm | 640mm |
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C† | 360mm | 360mm | 405mm* | 405mm* | 405mm* |
* Riva 66/76 only
†Dimension C may be reduced to 355mm when using the spacer frame kit.
For information on frames available, please contact your local retailer or call Stovax Ltd on 01392 474011
Consideration must be given for the clearance of 20mm between the flue pipe and lintel/inside chimney breast.
6. builders opening
Many fireplace openings have a supporting lintel. Remove the covering plaster to identify it's position before starting any constructive work. Do not remove constructional lintels without making provision to support the remaining structure of the building. The appliance must not form any part of the supporting structure.
6.1The chimney/flue must have a sealed connection to the appliance flue spigot.
6.2The structure of the builders opening will reach high temperatures. Use insulating blockwork to reduce the heat transfer to the external walls, in particular the area of the chimney breast above the opening.
6.3Take care when finishing the chimney breast and surrounding area. The conducted and convected heat emitted by the appliance could be high enough to crack normal plaster. Use a high temperature plaster, or face the area with a suitable high temperature plasterboard. New plaster should be fully dried before the appliance is used, or cracking could occur.
Riva 40 only
It is possible to fit the Riva 40 into an existing, traditional, 16” fireplace opening following the removal of any existing milner fireback. Following the removal of the fireback and any flaunching above, the builders opening should be checked and made good to the dimensions shown in the table. Care should be taken to ensure the existing chimney is in good condition and that it is possible to make the required sealed fluepipe connections to this when the Riva 40 is installed.
If you are in any doubt about your ability to produce a safe opening contact your Stovax dealer for professional advice.*
Riva 55/66/76 only
Should you wish to connect air ducting to the convection system, provision should be made to increase the opening height by an additional 300mm. This will allow the access needed to fit the duct pipes after connecting the flue system.
* In the U.K
Additional information covering the installation the appliance may be found in the following British Standards:- BS6461, BS6999, BS8303.
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