Do you really think the Bitcoin mining firm would pay to retrofit all of their equipment for water cooling, and to install a massive hot water network, out of the goodness of their own hearts? I find that really unlikely.
(Plus: does the town even need the hot water? It's Texas, after all. During most of the year, residents need air conditioning much more than hot water...)
(Plus: does the town even need the hot water? It's Texas, after all. During most of the year, residents need air conditioning much more than hot water...)