Home Assistant blueprint that pauses your heating when a window opens.

pause-heating-on-window-open.yaml

blueprint:
  name: "Tado: Turn off heating when window is open"
  description: "Disables heating in a specific room when the window is open."
  domain: automation
  input:
    # the window which opens
    window_sensor:
      name: "Window Sensor"
      selector:
        entity:
          filter:
            - domain: [binary_sensor]
    # the hvac that is controlled
    climate_entity:
      name: "Tado Climate Entity"
      selector:
        entity:
          filter:
            - domain: [climate]

mode: single

triggers:
  # always run when a window opens
  - trigger: state
    entity_id: !input window_sensor
    to: "on"

variables:
  # store the current climate hvac state before changing it
  climate_entity: !input climate_entity
  current_mode: "{{ states[climate_entity].state }}"

condition:
  # Only proceed if heating is not already off
  - condition: template
    value_template: "{{ current_mode != 'off' }}"

action:
  # turn off the heating whilst the window is open
  - action: climate.set_hvac_mode
    target:
      entity_id: !input climate_entity
    data:
      hvac_mode: "off"
  # wait until the window closes again
  - wait_for_trigger:
      - trigger: state
        entity_id: !input window_sensor
        to: "off"
    timeout:
      hours: 12
    continue_on_timeout: false
  # reset the original hvac mode
  - action: climate.set_hvac_mode
    target:
      entity_id: !input climate_entity
    data:
      hvac_mode: "{{ current_mode }}"