Hot Water tank check to run scene?

Hey Guys
I want to create a scene that if the Hot Water tank is hot enough the scene won’t run and turn the boiler on – I have solar panels that heat the water –
I created this scene but still runs even when water is hotter than the tempreture I have set

I’m not sure you’ll be able to make it with no code. Maybe a better route is to use Reactor. Free and easy to setup.