Cape' et All,
thanks for excellent info - this thread is going to be more informative than hitzer's own site for the 503. I think your setup will be similar to what I am planning.
1. I'm planning on a insulated Forever Flex liner from stove to top of chimney - for me I think it's about 35~ feet on a 2 storey Tudor - have to measure that this weekend and examine the existing chimney. Thanks for posting the adapter to stove that's what I'll use also - I had assumed the kits included this but I am thinking not
2. What did you/will you use to seal your damper - home made or you bought an available product that takes care of that. Did you/will you remove your old damper or just seal it with that in place.
3. the apron hitzer ships has insulation included but as is the case with you, I plan to pack in more insulation on sides and maybe top of stove. From what I understand the regular pink stuff is ok for this - I thought it would be necessary to uses special heat resistant stuff ?
4. Was thinking about that also i.e. under the stove there will be a possible small gap that will need to be sealed
5. My ash dump is not flush with floor - slightly elevated - I may remove it to get a flush flat level surface
Found good diagram and am posting here for better comprehension of various terms etc.