What is the difference between Summer and Winter Settings?

Summer setting uses the front 2 burners of gas to heat the water.

Using summer setting will rise the water temperature up to a maximum 10°C above the starting water temperature.

Winter setting uses ALL 6 burners of gas to heat the water.

Using winter setting with MIN water flow and MIN gas flow will rise the water temperature up to around 18-20°C above the starting water temperature.

Using winter setting with MIN water flow and MAX gas flow will rise the water temperature up to 42°C above the starting water temperature.

You can adjust the water temperature by changing the water and gas dials.