Seems practical! As long as they don't over-design it and leave us with the choices of advancing and retarding the timing in order to have the spark plug firing before the fire reaches top dead center of the draft port door, at top dead center of the draft port door, or below top dead center of the draft port door.
It then becomes an internal combustion engine if you put wheels on the stove. The EPA will say well you could put wheels on it so they will regulate it. Ah, you say, it's a stationary engine so not federally regulated. That did not stop them banning a 1200# Lister diesel generator. Once the liberal lunies start there is no end. Perhaps they will think that you could strap wings on it then it's a plane and start looking at it's carbon signature and could it threaten the bird population. Environmental studies will be commissioned to study this. Stupidity absolutely knows no limit. Lala land is a wonderful place. Lewis Carroll could write books about obummerland.