Excerpt from Approved Document J

Notice plates for hearths and flues
(Requirement J4)

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 lo 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 as shown in Diagram 1.9 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 appliances that can be safely accommodated;
c) the type and size of the flue (or its liner if it has been relined) and the manufacturer's name;
d) the installation date.

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.

1.58 For chimney products whose performance characteristics have been assessed in accordance with a European
Standard (EN) and which are supplied or marked with a designation as described in Paragraph 0.4 (9), the installer may optionally include this designation on the label as shown in Diagram 1.9.