I have a chance to pick up a 1 year old Enviro Evolution.The fellow is asking $900 for it.I haven't seen it yet so i don't know what kind of shape it's in.I was wondering what these stoves sell for new and are they a decent stove.I have an Enviro EF3 at a cottage and that seems like a decent stove.I'd like to replace my USSC 5510 with it