# Setting changes

**URL:** <https://community.inkbird.com/t/setting-changes/114532>\
**Category:** Questions & Answers\
**Created:** [December 22, 2023, 11:07am UTC](https://community.inkbird.com/t/setting-changes/114532 "2023-12-22T11:07:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![edcdesign](https://avatars.discourse-cdn.com/v4/letter/e/b38774/32.png) [@edcdesign](https://community.inkbird.com/u/edcdesign)\
**Post date:** [December 22, 2023, 11:07am UTC](https://community.inkbird.com/t/setting-changes/114532/1 "2023-12-22T11:07:44Z")

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My ITC308, How do change the settings from cool to heat.  
Whe the temp reaches below 32f I want the heater to turn on. 40f turn off

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**Author:** ![Tania](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.inkbird.com/tania/32/88_2.png) [@Tania](https://community.inkbird.com/u/Tania)\
**Post date:** [December 29, 2023, 2:25am UTC](https://community.inkbird.com/t/setting-changes/114532/2 "2023-12-29T02:25:45Z")

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Hello,  
Please set TS=40, HD=8  
The principle of the ITC-308 is, when the temperature reaches/ lower than TS (temperature setting value) - HD (heating difference value), it will turn on the heater, turn off at TS.