Could be an issue in some cases, but mine only heats while water is flowing through. Otherwise it cools down. Also the input water in my region is clean and drinkable, so it hasn’t enough food for germs.
You don’t need to adjust your water heater or add a mixing valve. You just need to take off the handle and set the temperature regulator on the faucet itself.
Your water heater is set too hot or you don’t have a mixing valve after your water heater
i adjusted my heaters max temp to what i like and just turn shower/faucet to the hottest setting in winter or lower in the summer.
https://en.m.wikipedia.org/wiki/Legionnaires'_disease
My heater only heats while water is flowing through. Otherwise it cools down.
This may have consequences not killing things that like thriving in warm water.
Could be an issue in some cases, but mine only heats while water is flowing through. Otherwise it cools down. Also the input water in my region is clean and drinkable, so it hasn’t enough food for germs.
Inline heating is pretty safe to do that, aye. I’d worry about listeria in a tepid storage tank.
You don’t need to adjust your water heater or add a mixing valve. You just need to take off the handle and set the temperature regulator on the faucet itself.