Throttle valve (smoke pipe)
A throttle valve in a flue pipe makes it possible to reduce the chimney effect of a furnace and thus improve its efficiency by reducing the internal cross section of the chimney pipe. It consists of a movable round sheet in the smoke pipe that can be turned outside of the pipe with a small lever. It may block the flue pipe to a maximum of 75%.
The throttle helps to reduce the burn rate and heat loss due to the air flowing through it. It is open when the fire is lit and gradually closes when the oven temperature rises. In wood-burning stoves, the throttle valve is usually operated manually; in oil-fired heating systems, it is usually the actuator of an automatic draft or combustion air limiter.
literature
- Karl Volger, Erhard Laasch: House technology. Basics, planning, execution, Teubner, Stuttgart 1989, pp. 555–557. ISBN 978-3-322-92814-6
Individual evidence
- ↑ Volger, Laasch: Haustechnik , Stuttgart 1989, p. 556.