Sauna temperature change per hour

input_number:
    - id: sauna_valmis
      min: 50.0
      max: 80.0
      name: "Sauna - Valmis"
      unit_of_measurement: "°C"
      mode: slider
      step: 1.0
      icon: mdi:format-vertical-align-bottom



template:
  - sensor:
      - name: "Sauna valmis"
        unit_of_measurement: "min"
        state: >-
          {{ (states('input_number.sauna_valmis')|float - states('sensor.ruuvitag_sauna_temperature')|float)*60 / states('sensor.sauna_temperature_change_per_hour')|float }}