Rob R. wrote:or if there is a puff-back from coal gasses
Speaking of puff-backs. Most of the older S-130's need a bit of re-wiring. You should wire the asher motor so that it only ashes when the fan is on. Ashing with the fan off leads to big puff backs... big enough to scare the heck of of you. My buddy Charlie has been using one for 8 or 9 years now. He had a lot of issues with severe puffbacks, but has made changes & now it's running like a healthy kitten.
The changes he made: 1: Rewire asher to not run if the fan is not running. 2: he no longer keeps his bin FULL. He adds coal as needed, but keeps it closer to the low end, rather than keeping it closer to the high end. 3: He changed the parameters in the electronics box. You should speak to the factory about it as Charlie can't remember the exact changes. He said he's thinking they changed the "Hysterisis" setting from 10 down to 1, and maybe another setting also. Those changes made it so it no longer puff's back. It took a LONG time for the factory to come up with answers. Most of the answers came from people like Charlie.
You get it set up & you're going to love it. It IS a nice boiler.