OPERATOR & MAINTENANCE MANUALPAGE‐374.6 Indoor InstallationExhaust gases from diesel engines are extremely poisonous. Whenever an engine is installedindoor, the exhaust fumes must be vented to the outside. The engine should be installed atleast 1000mm from any outside wall. Using an exhaust pipe which is too long or too small cancause excessive back pressure which will cause the engine to heat excessively and possiblyburn the valves.Room SizeIf the generator is installed indoors, it must be protected from the environment while havinggood ventilation and cooling. Some considerations for planning a room or enclosure are: Never use the generator room for storage. The room must be large enough to contain the generator and all the accessories. 1200mm must be allowed on the two sides and 1000mm in front of the engine forservice access. Allow clearance between hot parts of the system (exhaust) andstructural members of the building (see figure below). At the alternator end of the engine, allow a space equal to the length of thegenerator. The generator installation must comply with all of the current relevant standardsand local authority requirements.