boiler installation northwood

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    Older openvented noncondensing boilers take air in from
    Added: 2018-06-15 | Category: blocked drains | Comments: 0

    Older, open-vented non-condensing boilers take air in from inside your home newer, sealed condensing systems take air directly from outside this means that a newer sealed condensing boiler will normally take in cleaner air and be better at retaining energy. The disposal of chemicals no longer wanted or needed by the consumer.