After testing the following are not adding to heal amp both in the character sheet and in combat=
Half Elf Monk dilettante healing 1 and 2 (the human bonus works)
Exalted Angel purity of essence
I will update more as I find them.
Ones that work=
Human racial 1,2,3
All 3 barbarian trees
Divine Crusader
WF repair amp
Items with heal amp (haven't tested shroud or "blood" effect though)
I need to test more.