boiler repairs tufnell park

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    Added: 2018-06-15 | Category: boiler replacement | Comments: 0

    Join in the mse forum discussion. Did you know that boilers are responsible for a good 60% of our annual energy bills? worcester gas boilers are a-rated for efficiency, and are at least 90% efficient, meaning at least 90% of the fuel they use is turned into heat in comparison, an old g-rated non condensing boiler.