I'm having correspondence with a rep from a firm with over 3000 properties across the US. Many of these properties have large aquatic centers that they're looking to heat with Bitcoin.
I calculated what this could like and, assuming only 1/3rd of these locations are suitable for Digital Boilers, the pool heaters would be in excess of 20 EH (2.5% of the network).
It was in this moment I realized that the future of mining won't be with miners.