The boiler installation went very smoothly. For the first few weeks of operation, the hot water supply was a little erratic, but is now very reliable. The heating has always worked very well. It is too early to say if gas bills have been significantly reduced, but they should be as this is a far more fuel efficient boiler than the one it replaced.
1 year ago
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Viessmann Limited has a 4.46 average rating from 776 reviews

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