Can you provide the formulas you mentioned? I need them to calculate theoretical numbers... because I have the manometer and getting ready to buy thermo couples and maybe even O2 censors to get my geek on.... Just give us the formulas / reference tables like everything else. The formula for calculating theoretical draft is simple enough. Adjust for local average winter ambient temperature, type of flue pipe and installation method and BOOM we are in the ball park. Two k-type thermocouples, a data logger and a manometer can all can be had for peanuts on Amazon. Heck even wide band O2 sensors are standard fare for the average automotive enthusiast if we want to go full EU emissions geek. Do the calcs, add in a couple of monitored test burns for fine tuning/user training/validation and voila! We have a fully commissioned, safe, functional installation that keeps the EPA dweebs happy.
Why is this so hard?
Would have already had this but we had a date with corona for a minor set-back.
Now I’m going to read the rest of the thread.