Greeting from the North Cascades. My current design is to put in a clean-out at the front, and also below the chimney. The remaining flow will be routed through 3 runs around the perimeter of my greenhouse.
Do you think I need to add clean-outs to the "battery" portion?
When's breakup this year? I've heard it was quite the winter for you,
Cleanouts are key for long term maintenance. Any flue run needs to have an opening where you can stick a flue brush/shop vac hose into to clean even if it isn't that often. I only need to open mine up and clean every other year unless I burn less than ideal wood (I only had to do that once to learn that lesson). I thought one of my runs would be accessible from one end (it has some twists and turns) and when it came time to clean I found out that I really need another cleanout so now I have to add one after the fact which is a pain. So, if you have any u-bends to do, make them H's with two tees and you have cleanouts or figure out what it takes. Breakup is kind of starting I guess (it is melting a bit in the latter part of the day these days but we still have feets of snow!). Yes, what an awesome winter!