AS/NZS 2918:2018 Domestic solid fuel burning appliances - Installation
Standards Australia/Standards New Zealand
Supersedes: AS/NZS 2918:2001 Domestic solid fuel burning appliances - Installation
Draft Designation: DR AS/NZS 2918:2017The 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. This revision includes the
following:
(a) Changes to the minimum clearance requirement for heat shields for an untested
installation and new figures changes to the requirement for heat shields for a tested
appliance (see Clause 3.2).
(b) Changes to the minimum clearance requirement and minimum thickness for
continuous heat-tolerant material for an untested floor protector installation
(see Clause 3.3.3).
(c) Major revision to built-in appliance installation, including the addition of several new
figures (see Clause 3.4.2).
(d) Change to stainless steel or Monel fasteners usage requirement to secure enamelled
and stainless steel sections.
(e) Major changes to flues penetrating ceilings floors and walls including the addition of
new diagrams displaying requirements for untested flue penetration (see Clause 4.6).
(f) Changes to the minimum horizontal radius to nearby structures (Clause 4.9.1).
(g) The addition of new text in Appendix B, Paragraph B8, which describes the
requirements for testing water heating devices fitted to appliances.
(h) The addition of several new diagrams in Appendix F, Paragraphs F7 and F8, which
display thermocouple placement requirements for testing.
(i) Inclusion of a number of minor changes and additions to clarify and support the
requirements and specifications of this Standard.
The installation requirements for untested appliances and flue systems apply from the date
of publication of this Standard.
Statements expressed in mandatory terms in Tables are deemed to be requirements of this
Standard. In this Standard, Notes are for information and guidance only.
The term ‘normative’ and ‘informative’ have been used in this Standard to define the
application of the appendix to which they apply. A ‘normative’ appendix is an integral part
of a Standard, whereas an ‘informative’ appendix is only for information and guidance.
Originated in Australia as AS 2918-1987. Second edition 1990. Originated in New Zealand as NZS 7421:1972. Second edition 1985. Third Australian edition AS 2918-1990. Third New Zealand edition NZS 7421:1990. AS 2918—1990 and NZS 7421:1990 jointly revised, amalgamated and designated AS/NZS 2918:2001.
This Standard specifies requirements for the installation of domestic solid fuel burning
appliances that can be fully assembled prior to being transported to the installation site. It
does not cover the installation of appliances that need to be assembled in situ, or appliances
with electrically driven fuel stoker systems.
NOTE: The requirements for the measurements of performance of solid fuel burning appliances in
terms of heat output, efficiency and emissions are not covered in this Standard (see AS/NZS 4012
and AS/NZS 4013 for these topics).
This Standard applies to the installation of domestic solid fuel burning appliances, whether
installed in domestic or commercial situations, including the following categories:
(a) Space heaters, including open fronted fireplace inserts and built-in fireplaces.
(b) Cooking appliances.
(c) Open-vented water-heating appliances.
(d) Central-heating appliances.
(e) Any combination of two or more of the appliance categories shown in Items (a) to (d)
above.
NOTE: The installation of second-hand appliances as well as being in accordance with the
requirements of this Standard may be subject to additional State or regional requirements.
Contents:
Section 1: Scope And General
Section 2: Materials
Section 3: Appliance Installation
Section 4: Flue System Installation
Section 5: Modifications And Variations
Section 6: Additional Requirements
Appendix A: Evaluation Of Heat Shield Clearance Factors
Appendix B;: Thermal Testing Of Installation Clearances
Appendix C: Determination Of The Material Service Temperature For Shielding And Insulating Materials
Appendix D: Thermal Testing Of A Floor Protector
Appendix E: Thermal Testing Of Fireplace Insert Installations
Appendix F: Thermal Testing Of Flue Systems And Flue System Clearances
Appendix G: Installation And Operating Instructions
Appendix H: Causes And Solutions To Downdraught And Smoke Spillage
Solid Fuel Burning Appliances.
Adelaide Heating Technology (Testing Interests Australia); Applied Research Services (Testing Interests New Zealand); Australasian Fire and Emergency Service Authorities Council; Australian Building Codes Board; Australian Chamber of Commerce and Industry; Australian Home Heating Association; Australian Industry Group; Australian Solid Fuel Testing (Testing Interests Australia); Bioenergy Association of New Zealand; Clean Air Society of Australia and New Zealand; Consumers’ Federation of Australia; CSIRO; Department of Water and Environment Regulation, WA; Department of the Environment and Energy (Australian Government); Employers and Manufacturers Association, New Zealand; Energy Efficiency and Conservation Authority of New Zealand; Joint Accreditation System of Australia and New Zealand; New Zealand Home Heating Association; NSW Environment Protection Authority.