ToLower - ToUpper Heater, converting strings to lower and upper case letters

The ToLower and ToUpper Heaters convert strings to lower and upper case characters respectively. These Heaters have only one input, but the same output value can be used more than once.

ToLower: Converts all letters in the incoming string to lower case.

ToUpper: Converts all letters in the incoming string to upper case

Note: Only letters (A-Z, a-z) are altered, numbers and special symbols remain unaffected.

Please also refer to the general information on the use of Heaters (functions)