Spring & Autumn Syndrome

A technical guide to show the influences of seasonal temperatures upon the operation of a stove and flue system.

A hot flue does not “draw” air into a stove, it is the differences of densities that motivate the
lighter gases upwards.

• The greater the temperature difference between the gases within the flue and the surrounding air, the greater the difference in densities and the greater the motivation.
• The taller the flue, the greater the weight of the equivalent volume of denser air, the greater the motivation