I'm about to pull the trigger on a Jotul Oslo but I need a little advice. I'm installing it in a fireplace 1/2 in, 1/2 out and I feel like a blower would be important to optimize heati transfer to my house. Can anyone tell me anything about the blower like: - does it work well? - is it variable speed? - is it thermo controlled? - is it loud? - where is the switch located? Not much info on the jotul website. Thanks for all of your help!