AS/NZS 2918:2001 A S / N Z S 2 9 1 8
Aust Austra ralilian an/N /New ew Zeal Zealan and d Stan Standa dard rd™ . m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 7 e e r f a s i s i h T
P r B i m u i l a d r y i n g r e f C e o r d e n e c o e d f A S u t s a t n r d a l a i r a d
Domestic solid fuel burning appliances—Installation
AS/NZS 2918:2001 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee CS-062, Solid Fuel Burning Appliances. It was approved on behalf of the Council of Standards Australia on 14 August 2001 and on behalf of the Council of Standards New Zealand on 31 August 2001. It was published on 21 November 2001.
The following interests are represented on Committee CS-062:
. m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 7 e e r f a s i s i h T
AMDEL Australian Fire Authorities Council Australian Association of Certification Bodies Australian Building Codes Board Australian Chamber of Commerce and Industry Australian Home Heating Association Australian Industry Group Australian Institute of Building Surveyors Australian Retailers Association Department of Environment, Heritage and Aboriginal Affairs, S.A. Environment Australia HRL Technology, Australia New Zealand Home Heating Association New Zealand Manufacturers Federation Office of Consumer Affairs, Tas. Office of Fair Trading and Business Affairs (Victoria) Sustainable Energy Industries Council of Australia University of Tasmania
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This Standard was issued in draft form for comment as DR 96374.
AS/NZS 2918:2001
Australian/New Australian/New Zealand Standard Standard ™ . m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 7 e e r f a s i s i h T
Domestic solid fuel burning appliances—Installation
Originated in Australia as AS 2918—1987. Originated in New Zealand as NZS 7421:1972. Previous Australian edition AS 2918—1990. Previous New Zealand edition NZS 7421:1990. AS 2918—1990 and NZS 7421:1 990 jointly revised amalgamated and designated AS/NZS 2918:2001.
COPYRIGHT © Standards Australia/Standards New Zealand All rights are reserved. No part of this work may be reproduced or copied in a ny form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Jointly published by Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020
AS/NZS 2918:2001
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PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee CS-062, Domestic Solid Fuel Burning Appliances to supersede the Australian sol id fuel fu el burnin bur ning g applian appl iances— ces— and New Zealand Standards AS 2918—1990, Dome stic solid Instal Ins tallat lation ion and NZS 7421:1990, Specification for installation of solid fuel burning domestic appliances .
. m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 7 e e r f a s i s i h T
As well as the development of a new Standard based on AS 2918 and NZS 7421, a number of significant changes have been included. The construction and clearance factors in Table 3.1 have been revised and a new Table 3.2 added with subsequent changes to Figures 3.1 and 4.3. Testing require ments for fire place insert appliances based on NZS 7421:1990 have been included. Requirements for seismic restraint s mantleshelf shielding, built-in appliances and compliance with the flue gas emission limits of AS/NZS 4012 are also included. Untested unencased flue systems are no longer permitted beyond the ceiling or wall penetration of the room where the appliance is installed. The requirements for flue-system construction and installation have been revised to more strictly control their manufacture and installation. Additional requirements for fireplace insert appliances, zero clearance (in built) appliances, cathedral ceiling penetrations and flue exits are provided. The installation requirements for untested appliances and flue-systems apply from the date of publication of this Standard. Existing construction requirements for untested fluesystems remain valid for a period of one year from the date of publication. Existing requirements for tested appliances and flue-systems are to remain valid for a period of two years from the date of publication to allow manufacturers and installers time to comply with the Australian and New Zealand codes and this Standard. Appliances and flue systems tested to and complying with ISO 10774:1992, Solid fuelled heaters—Test method for determining allowable clearances from combustible surfaces can claim compliance with the equivalent requirements of this Standard and do not require retesting for installation in Australia and New Zealand. The term ‘normative’ has been used in this Standard to define the application of the appendix to which it applies. A ‘normative’ appendix is an integral part of a Standard.
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AS/NZS 2918:2001
CONTENTS Page
SECT SECTIO ION N 1 SCOP SCOPE E AND AND GENE GENERA RAL L 1.1 SCOPE...... SCOPE........... .......... .......... ........... ........... ........... ............ ........... ........... ............ ............ ........... ........... ............ ........... ........... ............ ........... ........... ............ ......... ... 5 1.2 OBJECTIV OBJECTIVE E ........... ................. ........... ........... ............ ........... ........... ............ ........... ........... ............ ........... ........... ............ ........... ........... ............ ........... .......... ..... 5 1.3 APPLICA APPLICATION TION .......... ............... .......... ........... ............ ........... ........... ............ ............ ........... ........... ............ ........... ........... ............ ........... ........... ............ ........ 5 1.4 REFERENCED REFERENCED DOCUMENTS... DOCUMENTS........ .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ..........6 .....6 1.5 DEFINITI DEFINITIONS. ONS...... .......... ........... ........... ........... ........... .......... ........... ........... ........... ........... ........... ........... .......... ........... ........... ........... ........... ........... ...........7 .....7
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SEC SECTION TION 2 MATE MATERI RIAL ALS S 2.1 MATERIAL MATERIAL SERVICE SERVICE TEMPERATU TEMPERATURE RE .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... .... 11 2.2 FLOOR FLOOR PROTEC PROTECTOR TOR MATERIA MATERIALS LS .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ....... 11 2.3 FLUE SYSTEM..... SYSTEM.......... .......... .......... .......... ........... ........... ........... ........... ........... ........... .......... ........... ........... ........... ........... ........... ........... .......... ......... .... 11 2.4 FLUE-PIPE FLUE-PIPE CASINGS CASINGS .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... .... 11 SECTIO SECTION N 3 APPLI APPLIAN ANCE CE INS INSTAL TALLAT LATIO ION N 3.1 GENERAL... GENERAL........ ........... ........... .......... ........... ........... ........... ........... .......... ........... ........... ........... ........... ........... ........... .......... ........... ........... ........... ........... ....... .. 12 3.2 CLEARANCE CLEARANCES S AND AND HEAT HEAT SHIEL SHIELDIN DING G .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... ........ ... 12 3.3 FLOOR PROTECTO PROTECTOR R .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... .... 16 3.4 PARTICU PARTICULAR LAR REQUIRE REQUIREMENTS MENTS FOR FIREPLA FIREPLACE CE INSERT INSERT AND AND BUILT-I BUILT-IN N APPLIANCES APPLIANCES ................................................................ ................................................................................................ ........................................... ........... 20 3.5 STABILITY.. STABILITY....... .......... .......... .......... ........... ........... ........... ........... ........... ........... .......... ........... ........... ........... ........... ........... ........... .......... ........... ........... ....... .. 22 3.6 WATER CONNECTI CONNECTIONS.. ONS....... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ....... .. 22 3.7 ELECTRICA ELECTRICAL L CONNECTIO CONNECTIONS..... NS.......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... .... 22 3.8 SEISMIC SEISMIC RESTRAINT RESTRAINT .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ........ ... 22 SECTIO SECTION N 4 FLUE FLUE SYSTE SYSTEM M INSTA INSTALLA LLATIO TION N 4.1 GENERAL GENERAL REQUIREM REQUIREMENTS... ENTS........ .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... .... 23 4.2 FLUE PIPES......... PIPES.............. ........... ............ ........... ........... ............ ........... ........... ............ ........... ........... ............ ............ ........... ........... ............ ........... .......... ..... 23 4.3 FLUE-PIP FLUE-PIPE E CASINGS CASINGS .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... .... 24 4.4 WALL PENETRA PENETRATION...... TION........... ........... ........... .......... ........... ........... ........... ........... ........... ........... .......... ........... ........... ........... ........... .......... ..... 24 4.5 FLUES WITHIN WITHIN ROOMS ROOMS AND AND SIMILA SIMILAR R AREAS........ AREAS............. .......... .......... .......... .......... .......... .......... .......... ....... 24 4.6 FLUES PENETRAT PENETRATING ING CEILINGS CEILINGS,, FLOOR FLOORS S AND WALL .......... ............... .......... .......... .......... ......... .... 28 4.7 FLUES WITHIN WITHIN ATTIC ATTIC SPACES......... SPACES.............. .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ....... .. 33 4.8 ROOF PENETRATI PENETRATION..... ON.......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ........ ... 34 4.9 EXTERNAL EXTERNAL REQUIREM REQUIREMENTS ENTS .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... .... 34 4.10 FIXING........................................ FIXING.......................................................................... .................................................................... ............................................ .......... 36 4.11 FLUE PIPES IN CHIMNEYS........................................ CHIMNEYS...................................................................... ............................................ .............. 37 4.12 FLUE DAMPERS........................ DAMPERS......................................................... .................................................................. ............................................. ............ 37 SECTION SECTION 5 MODIFICA MODIFICATION TIONS S AND AND VARIATIO VARIATIONS NS 5.1 APPLIAN APPLIANCE CE MODIFICA MODIFICATIONS..... TIONS.......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ........ ... 38 5.2 APPLIANCE APPLIANCE VARIATIO VARIATION N .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ....... .. 38 SECTION SECTION 6 INSTALLA INSTALLATION TION AND OPERA OPERATING TING INSTR INSTRUCTI UCTIONS ONS 6.1 GENERAL... GENERAL........ ........... ........... .......... ........... ........... ........... ........... .......... ........... ........... ........... ........... ........... ........... .......... ........... ........... ........... ........... ....... .. 39 6.2 INSTALLA INSTALLATION TION INSTRUCTI INSTRUCTIONS ONS .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ........ ... 39 6.3 OPERATIN OPERATING G AND MAINTENA MAINTENANCE NCE INSTRUC INSTRUCTION TIONS S .......... ............... .......... .......... .......... .......... ......... ...... .. 40 6.4 ADDITIO ADDITIONAL NAL OPERATIN OPERATING G INSTR INSTRUCTI UCTIONS ONS FOR APPLIA APPLIANCES NCES UTILIZIN UTILIZING G CATALYTIC COMBUSTORS ........................................................ ................................................................................. ......................... 41 6.5 REPLACEME REPLACEMENT NT OF OF COMBU COMBUSTOR STOR KIT .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... .... 41
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SECTIO SECTION N 7 ADDITI ADDITION ONAL AL REQUI REQUIREM REMEN ENTS TS 7.1 VENTILA VENTILATION.. TION....... .......... .......... .......... .......... .......... ........... ............ ............ ........... ........... ............ ........... ........... ............ ........... ........... ............ .......... .... 42 7.2 WATER HEATING HEATING EQUIPMEN EQUIPMENT T .......... ............... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ..... 42 7.3 EMISSIO EMISSION N LIMITS .......... ............... ........... ............ ........... ........... ............ ........... ........... ............ ........... ........... ............ ............ ........... ........... ......... ... 42
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APPENDICES A EVALUA EVALUATIO TION N OF HEAT HEAT SHIE SHIELD LD CLEA CLEARAN RANCE CE FAC FACTOR TORS..... S........ ...... ...... ...... ...... ...... ...... ...... ..... .. 43 B THERM THERMAL AL TESTIN TESTING G OF OF INS INSTAL TALLA LATIO TION N CLEA CLEARAN RANCES CES ...... ......... ...... ...... ...... ...... ...... ...... ...... ......45 ...45 C DETER DETERMI MINA NATI TION ON OF THE THE MAT MATER ERIA IAL L SER SERVI VICE CE TEMP TEMPER ERAT ATUR URE E FOR SHIELDING SHIELDING AND INSULATING INSULATING MATERIALS MATERIALS .......................................... ............................................ .. 51 D THERM THERMAL AL TESTIN TESTING G OF A FLOOR FLOOR PROTEC PROTECTOR... TOR...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ... 53 E THERM THERMAL AL TESTIN TESTING G OF FIREP FIREPLAC LACE E INSER INSERT T INSTA INSTALL LLATI ATION ONS S ...... ......... ...... ...... ...... ......58 ...58 F THER THERM MAL TE TESTIN TING OF OF FLU FLUE E SY SYSTEM TEMS AND AND FLUE-SYSTEM FLUE-SYSTEM CLEARANCES ...................................................... .............................................................................. ........................ 66
AS/NZS 2918:2001
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STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND
Australian/New Zealand Standard Domestic solid fuel burning appliances—Installation
S E C T I O N
1
S C O P E
A N D
G E N E R A L
1.1 SCOPE
. m o c . l a b o l g i a s . e r o t s o f n i / / : p t t h t a n o i s r e v l l u f e h t s s e c c A . e l p m a s e g a p 7 e e r f a s i s i h T
This Standard specifies requirements for the installation of domestic solid fuel burning appliances which can be fully assembled prior to being transported to the installation site. It does not cover the installation of appliances which must be assembled in situ, or appliances with electrically driven fuel stoker systems. NOTE: The requirements for the design and construction and the measurements of performance of solid fuel burning appliances in terms of heat output, efficiency and emissions are not covered in this Standard. These topics are dealt with in AS/NZS 3869, AS/NZS 4012 and AS/NZS 4013.
This Standard will be referenced in the Building Code of Australia by way of BCA Amendment No. 10 to be published by 1 January 2002, thereby superseding the previous edition, AS 2918—1990, which will be withdrawn 12 months from the date of publication of this edition. 1.2 OBJECTIVE The objective of this Standard is to provide manufacturers, installers and consumers with means for determining the requirements (including clearances from heat-sensitive materials) for the correct and safe installation of domestic solid fuel (wood) burning heating appliances and their associated floor protectors and flue systems. 1.3 APPLICATION This Standard is applicable to the installation of new and tested second-hand domestic solid fuel burning appliances, whether installed in domestic or commercial situations including the following categories: (a) (a )
Space heaters, including open fronted fireplace inserts.
(b)
Cooking appliances.
(c) (c )
Open-vented water-heating appliances.
(d)
Central-heating appliances.
(e) (e )
Any combination of two or more of the appliance categories shown in Items (a) to (d) above.
Results of a test on one sample or prototype appliance or accessory shall be applicable to all other appliances or accessories of the same construction. This Standard is not applicable to: (i)
Warm air distrib distributi ution on ductin ducting g system systemss beyond beyond the prim primary ary wall, wall, floor floor or ceilin ceiling g penetration.
(ii) (ii)
Applian Appliances ces with with flue flue outlets outlets greate greaterr than than 100 100 000 000 mm mm .
(iii) (iii)
The long term durabil durability ity of mater materials ials..
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