I know about astronomical tug-of-war, so how do satellites orbiting our moon not become unstable and just orbit Earth?
Could be anything. You need to call a repairman. Or you could invite a knowledgeable friend over to look at it.
I recommend all resin 7 decks, they're made from the same stuff, almost and blind resin decks are the only ones i've used personally but enjoi makes good decks. If you have a habbit of breaking boards then don't worry about it when you buy resin 7 they're super strong. if you have any board that breaks from the first ollie then i'd return it because then there was a flaw in the wood or lam.
If its a new heater it is probably just oil on the metal used during manufacture. This will burn off and smoke the first couple of times they are used. If they haven't been used for a while it could be dust especially if it smells, this will burn off to. Good luck!