Concatenate field values

Is there a way to use FlowHeater to create a value for a field by combining the values of two other fields. All values are strings. I would like it to run during a migration of old data to a new database.

For example:

Field3  = Field1 + Field2

Thanks

John W

Hi John,

You just need the help of the String Append Heater . Attached you´ll find abrief example.
 

I have tried the Append Heater in the process and it works as I want.  

Now I need to build a complex if then process trying the .Net Heater.

Thanks so much!