[cagenut]

there's a company that sells a more commercial/industrial unit of the same basic idea: https://www.ice-energy.com/

[czbond]

Thanks to you and the other commenter on these options, would love to replace my current A/C unit with something that seems more intelligently designed.

[brightball]

There's another who does it using water tanks. IIRC they use it to store heat also. https://www.multiaqua.com/