Zulfiqar Dad, 49, started the blaze in the early hours of New Year&apos;s Day this year at the family home on Hanson Lane, Halifax. His two grown sons were inside the property at the time.
Following the case, Detective Inspector Vicky Lawrance, of Calderdale CID, said: "Zulfiqar&apos;s actions in deliberately starting the fire in the early hours of the morning on New Year&apos;s Day could have easily caused the deaths of his two adult sons.
"Luckily no-one was seriously hurt but the consequences of his actions could have been much worse."