Question for all you heating and cooling experts. Tell me what you think and back it up with stats preferrably. I have a new heat pump that is rated 14 seer/8.5 hspf? I was wondering if it is more economical to run it during the 35-40 degree weather or the pellet stove? House is well insulated, and live in Wisconsin. I don't have any months to compare cost. I eagerly await your reply. Thanks.