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Farm Building and Infrastructure
Buildings & Infrastructure
Plumbing in a heat exchanger
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<blockquote data-quote="Ukjay" data-source="post: 4563030" data-attributes="member: 51920"><p>OK - so if I understand this correctly, the main pipework has a closed loop system that is not for drinking - only for providing heat output via the blow heaters. This circuit is controlled by all the required safety devices to prevent overheating etc - so all good.</p><p></p><p>On this basis - your idea is a way for you to utilise the existing network of pipes to give you the hot water feed you require. Just ensure that you understand the size of the current expansion vessel, because if you add too much pipework etc, and the extra water content puts the net volume over the specified unit currently on - you may get the valves letting the water out as the system heats up, then you may require a larger volume expansion vessel.</p><p></p><p>Series HE can work, but parallel is a better option imho.</p><p></p><p>I assume you planning on taking the new hot water feed from the Buffer tank, if so - you should also take the cold feed to the valve too - with the hot feed lower in the buffer tank than the cold feed, as this then shuts the hot water feed off first if there is a problem with the header tank running out.</p></blockquote><p></p>
[QUOTE="Ukjay, post: 4563030, member: 51920"] OK - so if I understand this correctly, the main pipework has a closed loop system that is not for drinking - only for providing heat output via the blow heaters. This circuit is controlled by all the required safety devices to prevent overheating etc - so all good. On this basis - your idea is a way for you to utilise the existing network of pipes to give you the hot water feed you require. Just ensure that you understand the size of the current expansion vessel, because if you add too much pipework etc, and the extra water content puts the net volume over the specified unit currently on - you may get the valves letting the water out as the system heats up, then you may require a larger volume expansion vessel. Series HE can work, but parallel is a better option imho. I assume you planning on taking the new hot water feed from the Buffer tank, if so - you should also take the cold feed to the valve too - with the hot feed lower in the buffer tank than the cold feed, as this then shuts the hot water feed off first if there is a problem with the header tank running out. [/QUOTE]
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Plumbing in a heat exchanger
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