New guy here. I stumbled onto this site doing an Internet search for some heater problems I'm having, and I posted the situation in the HVAC Forum.
I didn't notice the Introductions until after I made a rather lengthly post - sorry about that.
I'll be looking around, see if I can return the favor. I have 30 plus years exp. working on old houses (doing mostly exterior carpentry and roofing of all types - including slate, wood, single ply membranes).