©
EUROHEAT
DISTRIBUTORS (H.B.S) LTD. March 2006
Technical Guide IN1087 Edition C
8
Even by putting the terminal in what should be an ideal position there is no certainty that consistent
results can be obtained because the wind rarely arrives at the property unaffected by obstructions along
its path or indeed by the very contours of the ground itself. Before looking for potential problems with
the property that may be caused by obstructions nearby a far wider area should be looked at, taking
time to look at other chimneys. If every old house nearby has what seems to be a disproportionately
tall chimney it will be because of difficult wind patterns in the area and not because every builder liked
working at high altitudes. Ask about smoking fires and try to relate the problem with wind direction
and features which may cause turbulence over an area rather than just the property itself.
Having looked at the surrounding landscape, the obstructions nearby will need to be noted. Not only
will the terrain cause problems in this illustration, the houses will be affected by each other and the
effects will be completely different with each change of wind direction.
The effect of trees in particular should not be underestimated because they may have no effect for
many years, but begin to affect the terminal with increasing intensity as they grow. They will also
have different effects with or without leaves and when laden with snow.
There is rarely a simple and totally satisfactory solution to overcoming the problem of the effects of
wind turbulence.
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