Burnham FREEDOM 101008-01R1-2/07 - Manual (Page 5)

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6) The combustion air piping must terminate where outdoor air is available for combustion and away from areas that will
contaminate combustion air. Avoid areas near chemical products containing chlorine, chloride based salts, chloro/
fl uorocarbons, paint removers, cleaning solvents and detergents.
Figure 4.1: Clearances To Combustible Or Non-combustible Material