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Last seen: Aug 26, 2026
Hi, If you mean 2 port (only using 2 ports of the buffer) this would be a volumiser and yes only 1 pump, if you use it as a buffer (ASHP F+R ...
@davidb I think this question is to @bones
You would need to engage someone that is able to calculate and design your system and select the correct pump capacity to open loop a system with an 1...
@bazcurtis Ok, that rules that out then, sometimes if the secondary pump line is not insulated it can register the same losses like you show on the gr...
@bazcurtis you would look to see if there is an additional pump gold or yellow colour normally piped in on the cold water inlet or at the top of the t...
do you have a secondary return pump on the cylinder?
@editor Nice, its about time, we need some professional add ons that help on that side of things to make these systems a bit more cost effective. I ...
You need to work out if the system is leaking on the ASHP circuit or cylinder side, if you need to top up the heating circuits or if its leak...
I am soon going to install and review an Adia Thermal connected to a Vaillant, microbore drops 10mm, no rad changes and no DHW change, they claim prov...
@wanttobegreen Thank you for the honest and kind review. It was our pleasure to work with you and we hope to look after you and your system for the fo...
With regards to line 2, could it be that the (demand) was not met and although the external temp was 21.2c (some solar gain no doubt) the act...
This is likely thread sealant for the pocket plug, very easy fix if it starts oozing out, unless you get an actual leak it is probably fine, what you ...
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Latest Posts
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RE: Siting of the external sensor on a heatpump
OK perhaps my original statement was badly worded if ap...
By JamesPa , 22 minutes ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 15 hours ago
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RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 18 hours ago
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RE: Is it the house or the equipment?
@majordennisbloodnok I do sympathise. On the original...
By springswood , 20 hours ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 1 day ago
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Sorry to hear about the problems, its going to be somet...
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R (The R Project for Statistical Computing, I use it wi...
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RE: Two heating zones to one zone
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RE: Vaillant Aurotherm - Heater Wire Position
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