Simple Q&A D&D 3.5 (by RAW) XXI

[killem2]

Q 1178: With Radiant Servant of Pelor, the two following abilities:

Empower Healing (Ex): When a radiant servant of
Pelor of at least 2nd level casts a domain spell from the
Healing domain, that spell is affected
as though by the Empower Spell
feat. This spell does not use up a
higher-level slot.

Supreme Healing (Ex): When a radiant servant of
Pelor who is at least 10th level casts a domain spell from the
Healing domain, that spell is affected as though by both the
Empower Spell and the Maximize Spell feats. The spell does
not use up a higher-level slot.

it means I MUST have the healing domain and cast the spells from those extra domain slots to qualify for these feats right?