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

heating.yaml

blueprint:
  name: Heat for certain time
  description: Turn on heating for a given amount of time. https://community.home-assistant.io/t/set-heating-temperature-to-a-configurable-value-for-a-certain-amount-of-time/255742
  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