In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
"Please, no heavy metal in church."
Sure. First, they have to follow the factory's protocols as it pertains to protection of the boiler first, and system protection second. I'd also make them sign a release of liability to me for any damage that occurs due to improper operation outside of the factory specifications. The lawyer who writes that letter should refer to the factory for specifications.
Looked at this steam system today. Someone had replaced the main vents in the not-too-distant past.............
Quick update! Ever since the fella from the oil company worked his magic (oil pump replacement, electrode adjustment), the barometric damper has yet to launch itself across the room again. I guess that's a good sign? Thanks everyone for your suggestions and for encouraging me to get it fixed quickly!
The only way that can happen is from a delayed lightoff from the burner, causing a mini explosion in the firebox.
May I respectfully note that explosions, mini or not, have no place in your home
There are a number of possible causes for the problem. You should get a qualified oil burner technician in there as soon as you possibly can -- like tomorrow if not sooner -- to clean and adjust the burner and its controls.