I picked up a used Waterford Erin pellet stove for not a lot of money but before doing any research (not smart) to find they're no longer sold in the US. It looks pretty though, appears to work fine, and came with a spare auger motor. I'm looking for installation information, specifically what kind of clearance I need to the wall behind it and how large of a hearth pad to place beneath it. I'd appreciate any guidance you can provide.