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Multi Fuel Chimney Liner Regulations

Subject to the need for making a building control notification (see below), there are no regulations to prohibit the installation of chimney liners as a DIY job. However, due consideration should be given to access and safety requirements.

Chimney liner should be installed generally in accordance with Building Regulations Part J.

Below are the extracts from the document which relate to chimney liners and chimney liner installation. 

Multi Fuel Chimney Liner Regulations

Approved Document J
On 1st April 2002, Approved Document J came into effect. 

This guide highlights the sections of the new regulations relating to the installation of flexible chimney liner. Although every effort has been made to ensure the accuracy of this information, we accept no responsibility for any errors or omissions contained within.

Approved documents are approved by the Secretary of State for the purpose of providing practical guidance with respect to the requirements of Schedule 1 to and regulation 7 of the Building Regulations 2000 (SI 2000/2531) for England and Wales. SI 2000/2531 has been amended by the Building (Amendment) Regulations 2001 (SI2001/3335).

 

Provisions which apply generally to combustion installations

Notify your local authority before installing a chimney liner.

  • Page 20, Paragraph 1.35
    "Flues are controlled services as defined in Regulation 2 of the Building Regulations, that is to say they are services in relation to which Part J of Schedule 1 imposes requirements. If renovation, refurbishment or repair amounts to or involves the provision of a new or replacement flue liner, it is "building work" within the meaning of Regulation 3 of the Building Regulations. "Building work" and must not be undertaken without prior notification to the local authority." 

Flue liners are for re-lining chimneys only.

  • Page 20, Paragraph 1.40
    ....."Flexible flue liners should only be used to reline a chimney and should not be used as the primary liner of a new chimney. They can be used to connect gas back boilers to chimneys where the appliance is located in a fireplace recess."

Notice plates are required for hearths and flues.

  • Page 23, Paragraph 1.56
    "Where a hearth, fireplace (including a flue box), flue or chimney is provided or extended (including cases where a flue is provided as part of the refurbishment work), information essential to the correct application and use of these facilities should be permanently posted in the building. A way of meeting this requirement would be to provide a notice plate conveying the following information:

    a) the location of the hearth, fireplace (or flue box) or the location of the beginning of the flue;
    b) the category of the flue and generic types of appliance that can be safely accommodated;
    c) the type and size of the flue (or its liner if it has been relined) and the manufacturers name;
    d) the installation date;"

  • Page 23, Paragraph 1.57
    "Notice plates should be robust, indelibly marked and securely fixed in an unobtrusive but obvious position within the building such as:

    a) next to the electricity consumer unit; or
    b) next to the chimney or hearth described; or
    c) next to the water supply stop-cock."

 

Additional Provisions for Appliances Burning Solid Fuel

Use a liner with the correct independent certification.

  • Page 29, Paragraph 2.20
    "Lining or relining flues may be building work and, in any case, such work should be carried out so that the objectives of J2 to J4 are met. Existing flues being re-used should be checked as described in Paragraph 1.36. Ways of meeting the requirement include the use of:

    a) liners whose performance is independently certified as being at least equal to that corresponding to the designation T450 N2 S D3, as described in BS EN 1443:1999, such as:-

    i) factory-made flue lining systems such as double skin flexible stainless steel lining which is independently certified as suitable for use with solid fuel burning appliances; ........." 

Additional Provisions for Appliances Burning Gas

Use a liner with the correct independent certification.

  • Page 29, Paragraph 2.20
    "Lining or relining flues may be building work and, in any case, such work should be carried out so that the objectives of J2 to J4 are met. Existing flues being re-used should be checked as described in Paragraph 1.36. For flue liners serving gas appliances, ways of meeting the requirement include the use of:

    a) .......
    b) Liners as described in Paragraph 2.20;
    c) flexible stainless steel liners independently certified as complying with BS 715:1993;
    d) ..........."

Install liners as a single length.

  • Page 44, Paragraph 3.37
    "Flexible metal flue liners should be installed in one complete length without joints within the chimney. ....."

For gas fired appliances, the space between the liner and the chimney should be left empty.

  • Page 44, Paragraph 3.37
    ".......Other than for sealing at the top and the bottom, the space between the chimney and the liner should be left empty unless this is contrary to the manufacturer's instructions......"

Install you liner in accordance with...

  • Page 44, paragraph 3.37
    ".....Double skin flexible flue liners should be installed in accordance with manufacturer's installation instructions. BS 715 liners should be installed in accordance with BS 5440-1:2000."

 

Additional Provisions for Appliances Burning Oil

Use a liner with the correct independent certification.

  • Page 52, Paragraph 4.21
    "Lining or relining flues may be building work and, in any case, such work should be carried out so that the objectives of J2 to J4 are met. Existing flues being re-used should be checked as described in Paragraph 1.36. For flue liners serving oil appliances, ways of meeting the requirement include the use of:

    a) linings suitable for use if the flue gas temperature can be expected to exceed 250C
         i) .....
         ii) liners as described in Paragraph 2.20;
         iii) flexible stainless steel liners independently certified as complying with BS 715:1993;
         iv) ..... 

a) linings suitable for use if the flue gas temperature is unlikely to exceed 250C
     i) any of the linings described in (a) above;
     ii) .........
     iii) .......
     iv) ..... 

Install liners as a single length.

  • Page 52, Paragraph 4.22
    "Flexible metal flue liners should be installed in one complete length without joints within the chimney. ....."

For gas fired appliances, the space between the liner and the chimney should be left empty.

  • Page 52, Paragraph 4.22
    ".......Other than for sealing at the top and the bottom, the space between the chimney and the liner should be left empty unless this is contrary to the manufacturer's instructions......"

Install you liner in accordance with...

  • Page 52, paragraph 4.22
    ".....Double skin flexible flue liners should be installed in accordance with manufacturer's installation instructions. BS 715 liners should be installed in accordance with BS 5440-1:2000."

 

Multi Fuel Chimney Liner Regulations
   
Chimney Flue Liner Installation Guide Chimney Flue Liner Regulations Chimney Liner Gather Hoods

          

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