Question: what is the difference between 8.5 kw and 10.5 kw shower?
Answer: 8.5kW, 9.5kW and 10.5kW all exist because of another important aspect of showers, pressure. ... Higher powered electric showers have been introduced to combat this issue, so a higher power 10.5kW shower will be able to run at higher pressure at higher temperatures than 8.5kW electric showers.