He likes rose quartz, amethyst, obsidian, red wine and for his altar cloth a red pentagram on black cloth, he can turn crystals into vampiric crystals to take energy.
If I was you I would meditate to balance and clear your chakras while burning patchouli incense since it seems to raise your chi levels to crazy levels in my recent experience.
If you have the privacy you should summon him in your house but clear your space beforehand.