Help with input_number helper and setting presets in climate control

I am trying to set external values for the presets that I have set in the climate control. I am only using the heating part.
I have setup the number helper and I can pull this into the control using the following yaml.

  - platform: homeassistant
    id: home_setpoint
    entity_id: input_number.garage_heater_home_setpoint
    name: "home_setpoint"
    unit_of_measurement: "°C"
    device_class: "temperature"
    state_class: "measurement"

I want to dynamically change the preset value for the following:

preset:
      - name: Home
        default_target_temperature_low: 19 °C
        mode: HEAT

where I want to change the 19 °C to be dynamically drive from the helper.

I have tried using lambda and jinja to do this but im a noob to HA and after 3 days of trying to figure it out I have to admit defeat on this.

can anyone help please?

On my thermostat, target low/high attributes are only used when it is set to Heat/Cool.

When on Heat or Cool only, the ‘temperature’ attribute is used.

ETA: you can see these in Developer tools | States

How to format code or use the</> key in the post editor.

Considering the fact that those configuration keys are not marked as templatable

image

… they probably can’t be templated.

Thermostat Climate Controller - Presets

Thanks - that will be why it wont work then.