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Hi there, I have a Stovax Stockton HB11, but it's hardly outputting any heat at all into the water system behind it. It's almost as if the heat exchanger is just really undersized, or I could have a blockage. Either way, do you know someone in the essex area that could potentially...

Just had boiler controller upgraded: Existing Ecotec 637 plus. We installed a VR71 / SensoComfort VRC720f / NetSensor Gateway Everything appears to be working. Tech support recommended system diagram 2 (we have single heating and HW circuits). We also added a second circulation pump. They...

Just took over a new property that has an EcoTEC pure 637 installed, separate HW cylinder, honeywell Evo home programmer (t6). I'm upgrading and have bought the following items after doing a bit of research and would like to get some confirmation of my assumptions: Purchased: VR71 - I have a...