hot water tank

Hello and happy Easter! Would anyone be able to explain, from the photos and the video of my HW tank, what do the 2 red valves control and whether they should be closed or open? Upper one is sitting below an intersection below the CH pump. I wonder if, when opened, this contaminates the water in...

Hi all, I need to replace a 3/4" union valve lockshield with a 1/2" on a bathroom heat leak radiator. Usually I bung the header tank, release pressure, and quickly swap the valves over. However, as its an old school heat leak setup I'm unsure if I need to adopt a different approach due to the...

Hi All I am planning for a house extension at the moment and would like to implement the attached scheme in the Central Heating work. The house will have 1 bath + 2 showers when completed, for 3/4 people. The existing combi is a Baxi 30kW, 2 years old, from the previous owner. Since it would be...

Hi, I've recently purchased a one bedroom (all electric) flat and have quite a few questions about what to do with the current setup of the hot water installation. I mostly use the hot water for showering. I have a washing machine and a dishwasher which are self heating and storage heaters (and...

Hello, I have a vaillant boiler plus a hot water tank. I changed diverter valve 3 years ago because it did not move correctly. For a month now I have had a new problem with this diverter valve but slightly different and I can not find the cause. The valve works perfectly for central heating /...

Good evening to all, Need a bit of help on installing a Hive Active Heating Thermostat, or to be more precise fixing a very sloppy work by a "cowboy" electrician at a friends house. So here we go. System comprises of: (1) Trianco Aztec Boiler (2) Separate hot immersion heating water tank (3)...