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Thanks for the feedback. Power to the new shed is starting to sound awkward. Is there a good product (battery driven) for just lighting? cheers Graham

Hi The current installation I have is based on a 16A RCB with an RCD rated at 30mA from the CU in the house to the garage. The SWA cable used for this 10m run underground (tarmac) is 1.5mm CSA and it terminates in another non RCD CU which has three wire fuses one for lighting rated at 5A, a...

I have now done some research and I think I understand how it all works. Jackthom you have correctly identified the unit I have which is a Danfoss HSA 3 port valve. To check it I took the actuator off and rotated the spindle it was a little stiff but did rotate in both directions (should you be...

No there are two. One diverts some of the flow from the central heating circuit to the underfloor heating. The other located in the airing cupboard allows the flow to go through the water cylinder. The suspect unit for the ch and water heating is effectively a T-piece with a motorised valve...

Thanks for your reply. There is an automatic bleed valve on the system. Is there anywhere else I can bleed the system for the HW ciircuit? The balancing valve? Is this the valve which is placed at the entry to the water cylinder? It was opened only a small amount and I have now oened it...

I have a problem which has shown up recently with the water heating or lack of it. The system I have is a pressurised combined water and central heating system. It comprises a standard ch pump which feeds 11 radiators, a second pump and controller which feeds an underfloor room heater and a...