[jameshilliard]

> There's no air involved. It's a completely enclosed system.

So it's actually a hydronic heating/cooling system? I don't think those systems are typically referred to as heat pumps generally.

[UltraSane]

It sounds like they are using radiant flooring for cooling and keeping the temperature above the dew point but this would only work if the humidity is always naturally low or you have a separate dedicated dehumidifier