You really did not upset me.. I like discussing matters which is totally normal. I just don’t believe I’m so wrong . I can see I can get the storage on English markets with the part number which indicates that you misunderstands the vih cl 15s that’s just the name of the boiler. If you type in the part numbers you can see that the storage comes up with 10 litres each. A lot of Vaillant
Engineers haven’t got a clue if you talk with the, on the phone. Just 2 days ago I spoke with one guy and he wanted to tell me I would need 3 bar mains pressure and 20l flowrates to be able to install this boiler. I had to call a different guy and he told me it was total boll.. the point I want to make is that I strongly believe that it’s the same boiler like Germany with a slight difference in kw output. We have 20 and 26 which is well enough but here in uk is 38kw