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Hi all, I've installed a few straightforward Wiser, Nest, Hive and Salus 'smart' systems, but certainly can't claim to know all the products and technical capabilities available out there - I have a particular scenario that I'd welcome your thoughts/suggestions on, if you don't mind... A...

My customer has a system boiler and unvented 170litre (upright) cylinder in their loft. Adding an extension to the house, including a bathroom, they want to increase the cylinder capacity (I don't think there are any additional occupants being added, but they want to 'future-proof'). They'll...

I acquired a G3 certificate just a few months ago, so haven't yet had exposure to many different installations. One I came across last week: Gledhill 210 StainlessLite tank, the expansion vessel is plumbed directly into the Secondary Return port. There is a specific port available on the...

Can someone please confirm that port 4 (CH on) connects directly to the CH zone valve (brown wire on a 4043h, for example)? From the HIVE wiring diagram, I assume that the output from port 4 is based on resolving both the programmer AND the thermostat ie will only be live if both programmer and...

Hi, new to this forum so apologies if this is a topic that has been covered previously. I have been asked to replace a Baxi Solo WM 40/4 powered flue HO boiler...quite an old machine. Very small, and installed in a kitchen cupboard. Its in-case rear flue is offset to the left (looking from...