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7.0
Checking for Spillage – Page 17
7.1 Checking for Spillage
CAUTION - Whilst checking for spillage care must be
taken to avoid touching hot panels.
1. Before starting test close all doors and windows.
2. Operate the fire from cold at maximum input.
3. After approximately five minutes check for spillage.
4. Fit a smoke match into a holder, and position with the
holder held 20mm below the lip of lower canopy and
approximately 100mm from one side of the opening in the
horizontal plane (Fig. 32 & 33).
5. If spillage is evident leave the fire operating for a further
ten minutes and repeat test.
6. If spillage continues to occur and the flue restrictor is
still fitted, remove restrictor (Fig. 32a).
7. If test is successful repeat with any extractor fan
operating and connecting doors open to create the worst
likely operating conditions.
8. If spillage still occurs and the problem cannot be
rectified the fire must be isolated until the problem is
resolved.
7.2 Possible Causes of Spillage
1. The smoke match may have been positioned
incorrectly, resulting in the smoke being picked up by hot
convected air currents.
2. The builders opening or flue installation may be
unsound.
3. Down draughts may be present.
4. Flue blockages.
5. Fire not sealed against fireplace or surround.
6. Surround not sealed to wall correctly.
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