Present participle of condense; reducing in volume or density, or expressing something in fewer words; as an adjective, describes a boiler or system that recovers heat from steam.
From Latin condensare + -ing suffix. The -ing form serves both as a gerund (noun) and present participle (verb/adjective), a versatile feature of English.
'Condensing boilers' are one of the most important green technologies in modern heating—they capture the heat released when steam turns back to water, making them 30% more efficient than traditional boilers, which means less fuel burning and less carbon dioxide.
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