| 1. | Atmospheric vented systems use room air as combustion air and exhaust air.
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| 2. | But more commonly, grilles are used as return or exhaust air inlets.
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| 3. | The American version had an exhaust air-pump, and timing changes which created.
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| 4. | Then there are the fans that exhaust air out from the house.
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| 5. | The entrance area, toilets and pantry are connected to the exhaust air system.
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| 6. | Then the preheating system is turned off and mine exhaust air is introduced.
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| 7. | :The air conditioner doesn't really exhaust air; it exhausts heat.
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| 8. | The camshaft's rotation determines at what intervals the engine takes in and exhausts air.
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| 9. | The dusty exhaust air is cleaned, usually with bag filters.
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| 10. | CAPTION : Horizontal duct will exhaust air through overhanging eave directly to the outside.
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