Kobi's grandfather, Colin Collier, said the boy's death was a timely warning to parents, homeowners and landlords about the danger of stoves.
Kobi is believed to have opened the door of the free-standing stove and climbed up on it to get something off the bench.
Colin Collier said: "As soon as I heard what had happened, I went to my stove, opened the door and I was amazed at what little weight it took for the stove to fall forward.
"Kids climb everything, so every parent, homeowner and landlord should make sure these things are secure."
It was the second tragedy for Shannon who had a stillborn baby, Tyler, about five years ago.
Daniel Collier had moved to Dargaville for work after the Te Aroha meatworks burnt down.