atyh · 2d studying chimney and updraft dynamics today. im interested in potentially creating a flue diverted bench. or, a solid thermal mass ( in the shape of a bench ) where the chimney has two paths out. one ... Matt FRL @MattFRL 1789938180 Interesting my immediate thought would be to use a combination of dampers to help direct flow either directly up the flue or into the thermal mass heater as needed 1๐ค1