Unit installation

7.4 Leaving a Hole, Building under Construction

It will be convenient to use a non-corrosive metal tube 160mm diameter built into the

wall at the correct position for the flue unit.

7.5 Combustible Walls (Wood, Fibreboard, Plasterboard etc.)

Building regulations require that the inlet and outlet ducts and terminal bust not be

closer than 25mm to combustible material.

 If the heater is to be mounted on to a plasterboard wall that has a wooden frame

behind it then the integrity and ability of the wall to carry the weight of the appliance

must be confirmed. It is important that any vapour control barrier is not damaged, and

that the structural members of the house are not damaged. We recommend a

minimum 12mm thick plasterboard.

 Mark out and cut a hole 202mm diameter through the combustible part of the wall.

A 152mm diameter hole can be cut through non-combustible parts of the wall. A

152mm diameter hole can be cut through non-combustible parts of the wall (See

figure 8).

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INSTALLER GUIDE

Figure 8. Timber frame wall preparation.