he has 5 kids
Judging by how Aphrodite hated Hephaestus, I'm guessing that they didn't have any children. but that's just my guess.
Yes; he had many children by those consorts as well as by his wife Aglaia.
Aphrodite had no children by Hephaestus.
Hephaestus had two children by the sea nymph Cabeiro which are collectively known as the Cabeiri.
Hephaestus both was at one point a child and later had a children.
Hephaestus and Aphrodite had no childeren.
Hephaestus originally had one biological son, who was Erichthonius. He was 'born' when Hephaestus tried to rape Athena. However she escaped him and his semen fell to the ground, and actually impregnated Gaia. Athena became to child's foster mother. There are some myths that Hephaestus did have extra 'sons' but they themselves could be foster children Hephaestus took care of during his exile. And they were Palaimonius and the 'Kabeiroi' on the island of Samothrace - Possible a group of craftsmen, who too were slightly crippled like Hephaestus.
Erichthonius, Cacus, and Caeculus
Both.
Yes.
None recorded.
Hephaestus was the son of Hera And Zeus. And sibling of Ares,Enyo,Hebe and Eileithyia (+all Zeus own children) He was married to the love goddess Aprodithe! Hephaestus had a lot of children with mortal women!