How hot will the water get?

At the lowest flow rate, saying 4LPM, the HOTTAP Outing will raise the incoming water temperature by around 35°C and at the highest flow rate this temperature rise will be closer to around 25°C.

So, as an example, if you’re camping in the middle of winter and your incoming water is sitting at around 5°C (very cold!) the HOTTAP Outing can still raise it to a nice showering temperature without the need for recirculation – but only at the lowest water flow rate.