I am adding features to my Logo boiler controller and have the following question; which do you think is the best way to control exhaust draft inducer fans, wire them to come on at any time, just come on when there is a stoker call or just come on when the stoker is not running.
I currently have it programmed to come on at settable time intervals for settable on times to minimize coal usage. While it is currently programmed to pull on the draft inducer strictly on time, regardless of stoker run or not, I can easily change the program to not come on if the stoker is running.
I don't have a draft inducer on my boiler, but if I needed one, I would think that overcoming the lack of draft in the summertime would be most important between stoker runs to keep the fire alive.
Appreciate your input.