We are currently using a Castine wood burner which is no longer up to heating our no. Minnesota home due to adding square footage. My husband wants to replace it with the Oslo 500. Iam more inclined to opt for the Hearthstone Heritage because of appearance and heat retention. He likes the Jotul stoves for the price and thinks cast iron is more flexible for spring/fall burning. Any input? P.s. any positive thouhts on the stone would be benificial to my cause. Thanks.