Installation Guide Supplement.
Constructing the Chamber The chamber can be constructed from masonry or insulated fireproof boards. There should be no combustible material within the chamber and all chamber materials need to be non-combustible. The recommended material for constructing the chamber is Thermalux board as it is both non combustible and has a high insulation value and, because it is selfsupporting, there is no need for studwork, fixings etc. The chamber needs to be closed off at the top.
Both grilled and slot vents are carried in stock as well as plain and insulated ducting and ducting vents. The Hearth The stove should be positioned on or above a non-combustible hearth and the hearth should extend a minimum of 300mm in front of the stove door if the room has a combustible floor. If the stove is to be set into a traditional fire surround then it would normally be positioned directly onto the hearth.
Minimum Chamber Sizes When the chamber is constructed it is usually better to make it higher and wider than the minimum size. This makes installation of the appliance and the flue easier.
The Chimney The chamber should be closed off above the stove with a concrete slab, lintels or Thermalux board. If there is to be a masonry chimney then it should be lined with pumice liners (not clay liners) of the correct diameter and the starter block should be set on the slab. The stove is then connected to the starter block with an adjustable length of single skin flue.
Installation example - Pumice
Installation example – Twin Wall Insulated
Installation example – Flexible Liner
