Homeassistant blueprint to switch heater on or off depending on window or door sensor

window_controlled_heater.yaml

blueprint:
  name: Window controlled HVAC mode
  description: Turn off/on thermostat when opening/closing window or door sensor
  domain: automation
  source_url: https://gist.github.com/Lucas-Steinmann/c2c93df7e91b2bfd8920d56f7c38dc40/edit
  input:
    heating_target:
      name: Heater
      selector:
        entity:
          domain: climate
    #entity is not specified cause it should also be possible to use groups
    window_entity:
      name: Window Sensor
      selector:
        entity:

variables:
  heating_target: !input heating_target

trigger:
  platform: state
  entity_id: !input window_entity
  from: "off"
  to: "on"
  
condition:
  - condition: state
    entity_id: !input heating_target
    attribute: hvac_action
    state: heating

action:
  - service: climate.set_hvac_mode
    entity_id: !input heating_target
    data:
      hvac_mode: "off"
  - wait_for_trigger:
      platform: state
      entity_id: !input window_entity
      from: "on"
      to: "off"
  - service: climate.set_hvac_mode
    entity_id: !input heating_target
    data:
      hvac_mode: "heat"