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

window_controlled_heater.yaml

blueprint:
  name: window controlled heater
  description: turn off heater when opening window and turn on with delay
  domain: automation
  source_url: https://gist.github.com/govido/4aaa213e6209d3b76ec0e65d576e3701
  #forked 2nd time from  https://gist.github.com/gresie/476f1169ddd4a1bbbb12662f5b20e383
  #forked from https://gist.github.com/dirkk1980/8ba849b480844b32e9ca484e6de5d552
  #inspired by https://github.com/home-assistant/core/blob/dev/homeassistant/components/automation/blueprints/motion_light.yaml
  input:
    heating_target:
      name: Heater
      selector:
        entity:
          domain: climate
    window_entity:
      name: Window Sensor
      selector:
        entity: {}
    window_closed_wait:
      name: Wait time open
      description: Time to leave the heating on after window or door is opened.
      default: 120
      selector:
        number:
          min: 0
          max: 3600
          unit_of_measurement: seconds
    window_opened_wait:
      name: Wait time closed
      description: Time to leave the heating off after window or door is closed.
      default: 120
      selector:
        number:
          min: 0
          max: 3600
          unit_of_measurement: seconds
# If window or door is closed within the delay,
# we restart the script.
mode: restart
max_exceeded: silent

variables:
  heating_target: !input 'heating_target'
  heating_temperature: '{{ state_attr(heating_target, ''temperature'') }}'
trigger:
  platform: state
  entity_id: !input 'window_entity'
  from: 'off'
  to: 'on'
action:
# timer waiting for door or window being open for X seconds (not turning the heater off if just walking through a door)
- delay: !input window_opened_wait
- 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'
# timer is reset is door is closed within this delay
- delay: !input window_closed_wait
- service: climate.set_hvac_mode
  entity_id: !input 'heating_target'
  data:
    hvac_mode: heat
- service: climate.set_temperature
  entity_id: !input 'heating_target'
  data:
    temperature: '{{heating_temperature}}'