Set heating temperature to a configurable value for a certain amount of time

Blueprints Exchange
1

This is a blueprint, that allows to set the temperature of a climate device to a given input_number at an input_datetime.
I use it to heat the rooms of my children for 30 minutes in the morning, when they get up and ready for school.

The duration is entered as string in the format hh:mm:ss

blueprint:
  name: Heat for certain time
  description: Turn on heating for a given amount of time.
  domain: automation
  input:
    datetime:
      name: Turn-on-time
      description: A datetime input that defines the time at which the heating is turned on.
      selector:
        entity:
          domain: input_datetime
    thermostat:
      name: Thermostat to control
      description: climate entity for which the temperature will be set.
      selector:
        entity:
          domain: climate
    heating_time:
      name: Heating duration
      description: How long will the heating be turned on.
    temp_on:
      name: Target Temperature on
      description: The temperature to set for heating.
      selector:
        entity:
          domain: input_number
    temp_off:
      name: Target Temperature off
      description: The temperature to set when not heating.
      selector:
        entity:
          domain: input_number

mode: single
variables:
  temp_on: !input temp_on
  temp_off: !input temp_off

trigger:
  platform: time
  at: !input datetime

action:
  - service: climate.set_temperature
    data:
      hvac_mode: heat
      temperature: '{{ states(temp_on) }}'
    entity_id: !input thermostat
  - delay: !input heating_time
  - service: climate.set_temperature
    data:
      hvac_mode: heat
      temperature: '{{ states(temp_off) }}'
    entity_id: !input thermostat
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