So I've not had a lot of success this year. And I am disappointed and frustrated. And I am already planning ahead for a better year come this fall, and getting lots of conflicting advice from different installers. I trust you guys a lot more at this point so I'm just going to ask you what I should do. The details: 1. Lopi Leyden downdraft stove with lots of leaky fittings to be fixed (hopefully) by the dealer soon 2. Stove sitting in fireplace of an old, poorly insulated house 3. Three story exterior masonry chimney in need of some work if it were ever to carry smoke again 4. Uninsulated liner 5. No block off plate 6. Thirsty oil boiler 7. Not nearly as much heat as I was expecting out of this stove. The plan: 1. Block off plate 2. Rockwool insulation above block off plate The uncertainties: 1. Do I keep the uninsulated liner, or change it out for an insulated liner? 2. Do I rockwool insulate at the top of the chimney AND bottom of chimney? 3. Do I rockwool insulate the ENTIRE chimney? 4. Do I change the diameter of the liner? (currently 6 in) and if so what size and why? Thank you yet again.