Tado with local control via HomeKit devices - no hot water controller?

I have managed to add my Tado Internet Bridge via HA HomeKit Devices and now see both of my Tado Thermostats, but so far the hot water controller (or any means of turning the hot water on and off) has not appeared.
Any ideas why this should be?

I set it up and noticed this issue. Unfortunately it’s not supported. Which is a bit annoying, means you can’t have local control without tado API of the hot water.

From tado website:

Blockquote
HomeKit does not support Hot Water Control.