There are two kinds of heating system,i.e., hot air heating and hot water heating. Gas, coal, fuel or their combination is used in the former one; and alluminium alloyed radiator, round-wing radiator or pipe radiator is used in the latter one. There are advantages and disadvantages in those ways of heating perspectively. Climate situations and project functions are the main factors in choosing which kind of heating system should be the most proper one.
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