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Currently have 14Mx15mm run from combi to tap dhw. If I replaced the last 6M section with 22mm pipe would this help? Taps closer to boiler have no problems firing the boiler.
Discuss Pressure drop not enough to fire dhw combi in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
It's a potterton 30 HEWhat Combi boiler is it?
What actually happens is we get no hot water. The pressure from the hot tap seems too low to fire up the boiler. I'm asking will changing to 22mm from 15mm for the last 6M help increase the demand on the boiler?Some Combi‘s have a Venturi which can affect hot water delivery. What actually happens when running hot water for the furthest outlets?
YesDo you have a decent cold pressure where the problem area is ?
Reply to Pressure drop not enough to fire dhw combi in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
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