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Any other potential issues that could be responsible?
Could be supply pipes from the boiler not fully clear / restriction as I would say that coil would easy heat the cylinder up within the hour
Discuss Is my Navien boiler behaving as expected? in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
Any other potential issues that could be responsible?
You might be right. The last boiler used 28mm pipe and this uses 22mm supply/return but connecting to the existing 28mm pipe into the houseCould be supply pipes from the boiler not fully clear / restriction as I would say that coil would easy heat the cylinder up within the hour
Reply to Is my Navien boiler behaving as expected? in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
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