5
7
Ventilation.
500 Model
Subject to a satisfactory spillage test, there is no requirement for purpose made
ventilation with these models.
700 Model
The room containing the appliance must have a permanent air vent with an effective
open area of at least 100 cm
2
. The vent must be either direct to outside air or to an
adjacent room having a permanent vent of the same area.
Fitting the Firebox
NOTE
As LPG (Propane Gas) is heavier than air any large voids below an LPG appliance must be back filled
with a suitable material or low level venting must be installed. If low level venting is installed this must
not be connected to the main flueway as this will cause dilution and may well result in lack of flue pull
through the appliance.
1
Check that the fireplace is of the correct size or has been modified to accept the
selected firebox. (See Figure 1).
2
It is recommended that, before proceeding further, a simple smoke test be performed to
check the condition of the chimney. Light a smoke match or a twist of rolled paper,
hold it within the fireplace opening and observe the behaviour of the smoke. If it is
being drawn into the chimney proceed with the installation. If not, pre-heat the
FIGURE 4
