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  1. HVAC
    I am about to replace my Keston C55 boiler. It provides for: DHW, 2x wet rad systems, wet u/floor system. The Keston has been great as it can supply output at 2 temps (2 separate thermostats) depending on what is calling for energy. E.g. u/floor is running a lot of the time on its own at 40c...
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