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Subject: 95%-plus range Не могу понять последнюю фразу 95%-plus range:At low heat production rates, the heat exchanger of a modulating boiler operates at relatively low combustion-side surface temperatures. When such a boiler is matched up with low temperature distribution systems such as for slab-type floor heating, it is common for the boiler to operate with sustained flue gas condensation. Modern modulating boilers have heat exchangers constructed of stainless steel or cast aluminum to withstand the effects of such condensation. When operating in such low temperature modes these boilers are also capable of efficiencies in the 95%-plus range. КПД таких котлов может составлять 95% - ????????????? Заранее спасибо
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