A commercial bakery I do some work for asked me if there was a way to get 86 degree water for dough mixing.

They would require approx 40 L of water every 10 minutes for each mix.

Tankless water heater came to mind as it would be able to keep up with the demand, issue is the water would be far too hot. Some sort of mixing valve would have to be added to bring temperatures down to 86.

Water supply is 42.8

Anyone have a suggestion? Speaking to one of my suppliers he told me it might be a good idea to walk away from this job because of the liability.