What does the summer/winter dial do on a tank less gas geyser? Should you adjust it or leave it on one mode or adjust it according to seasons?
Any info would be great thanks.
Leave it on what you want as already stated it’s to take into account the difference between winter incoming cold water being a lot lower temperature than summer. Old one used to be a water throttle so just slowed flow rate, new ones probably use thermistor to control temp