It appears that NuHeat’s API offers an energy log feature that returns the number of kWh used in over the course of an hour. It’d be great if this could get exposed in the integration for use in the Energy tab!
Also (and maybe this isn’t in the API, I’d like to be able to see the room AND the floor temperature.) It’s at least not currently clear which temperature is exposed in the integration, or if that is impacted by which temperature the thermostat is locally configured to display on-screen.