About 100 people gathered to watch Todd Grannis perform the flaming stunt Monday, which involved wearing a cape soaked in gasoline.

Grannis climbed up a three-metre-high scaffold, was set on fire and then plunged into a swimming pool, dousing the blaze. Emerging unscathed, he went down on one knee and proposed, as a friend standing nearby slipped him the engagement ring.

"Honey, you make me hot," he told his sweetheart, Malissa Kusiek.

"I hope I'm getting the point across that I'm on fire for you."

Kusiek, who has been dating Grannis for several years, said "yes" but added she was a little angry because of the danger.

"At first I was mad, because I thought: 'He's not a stuntman,"' Kusiek said.

"Then, of course, the tears started flowing. Of course I said yes."

"I was so thrilled."

Grannis said he came up with the stunt through the help of his friend, professional stuntman Eric Barkey.

Barkey pulled out a photo of himself on fire and said: "You could do that," Grannis said.

Grannis met Kusiek, the owner of a local hair salon, when she cut his hair.

"I kept telling her sometime before I'm 50," said Grannis, who co-owns an Internet wholesale company.

"She wasn't expecting it. She had no clue."