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If you don’t have a problem

If you don’t have a problem getting stuck in and possibly getting a bit grimy (and smelly!), here’s a few things you can try to unblock that drain. Subject to a satisfactory inspection of the existing heating system. There is no point buying a more powerful boiler than you need; you will just waste energy similarly, a boiler with too low a flow rate will struggle to heat your water properly, but there is no advantage to a boiler with a higher flow rate than your.

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