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Johnson & Starley QuanTec HR28CP review

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The QuanTec HR28CP condensing gas combi boiler from Johnson & Starley has an integral flue gas heat recovery system; this means it uses heat that would normally be wasted to preheat your water, which could, in theory, cut your heating bills. Sounds good – but how did this gas boiler brand fare in our most recent customer satisfaction survey?
Is it worth your money?
Or is it a waste of cash?
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