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Added: 2020-05-08
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According to the current standards new boilers

According to the current standards, new boilers are required to be high-efficiency condensing boilers—unless said boiler is too difficult and/or expensive to fit into a home condensing boilers capture heat normally expended by traditional boilers, recycling that same heat that would have been lost thanks to this process, these top-of-the-line boilers potentially.

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