Why do I need an inhibitor? Comments Off on Why do I need an inhibitor? 20 Jan 2016 Vote Up 0 Vote Down Answered Public Public Private Technical Anonymous asked January 20, 2016 Why do I need an inhibitor? 1 answer Vote Up 0 Vote Down Public ⋅ January 21, 2016 As there are different metals within your heating system the inhibitor makes sure that no corrosion takes place. #1 Please login or Register to Submit Answer