How to change TH115 thermostat from Celsius to Fahrenheit 02- 02- 2016 By Paul Suarez in Category_Featured, Category_Frequently asked questions>Troubleshooting, Category_Video, frequently asked questions, thermostats, Category_Featured, Category_Frequently asked questions>Troubleshooting, Category_Video, frequently asked questions, thermostats, Share Share on Facebook Pin it Pin on Pinterest Tweet Tweet on Twitter