While performing a Shiva Yagya a devotee should make offerings to the ‘havanakunda’ made of iron or mud. Fire should be ignited in the havankunda following the methods as prescribed in the scriptures. He can then commence the actual worship.
The devotee should make of offerings of ghee with Sruva (a wooden spoon) and other articles with his hands. The offerings should be first made in the names of lord Brahma (Prajapati) then to the nine planets and other deities. After that offerings should be made in the name of the chief deity.
The devotee should then make nine offerings to each of the deities like Agni, Vayu and Surya etc. At last he should perform the arti and atone for those mistakes, which he might have committed during the whole process of worship. He should also give donations to the brahmins and feed them.