HHboxmoor

Hello. I have an outward sliding uPVC window with aluminium fittings. The part that is missing holds the sliding arm in place. So the window is always hanging in a skewed position when open. The first image show the part I am looking for. The second image show the bottom of the window, where I still have the part in place. The third image shows where the part fits on the top of the window. Any ideas what that is called and where to find a replacement? Thanks!

Hello. Complete beginner question here. I've had a Vaillant AroTherm 5kw plus installed recently on a 3 bedroom end-of-terrace house with a conservatory. Heat loss calculated around 4.4 kW. Hot water tank is a unistor 180L. Question is: My system is saying the power consumption for DHW is almost 5x larger than my power consumption for heating. Does this make any sense? What would be the expected ratio between consumption for DHW and heating?