Turn on set the Temperature
Change Temperature: With your finger, tap on the ecobee thermometer's temperature Number. You will be directed to another screen where you can increase or decrease the temperature - either using the + (increase) or - (decrease) symbol - or scroll on the number up or down.
Set Temperature: Once you reached your desired temperature, tap the number again and you will be returned to the main menu.
Turn on Heat
Heat / Cool Control: You will see a flame/snowflake symbol at the top center of the thermostat.
Set to Heat / Cool / Auto: Tap this symbol and a selection menu will appear - set to Heat to only heat (will heat to set number), set to Cool to only air condition (will cool to set number), or Auto (You will choose 2 numbers - low to cool to, and high to heat two. - the Temperature will always stay within this range.