What is pluming?

There are times when a white plume or discharge can be seen coming from the flue terminal on condensing boilers. This is due to the flue gases being cooler than in non-condensing boilers. With standard efficiency (non-condensing) boilers, flue gases are hotter and cool down further away from the flue's terminal and dissipate differently. The flue gases of condensing boilers exhaust at around 55 degrees C, cool quicker in the atmosphere and in certain outside temperatures cause a plume similar in effect to breath on a cold morning.


Send enquiry

Send us an enquiry via our website and we'll get back to you as soon as we can.

Register guarantee

Register your Worcester Bosch product here by following a few simple steps.

Manuals & brochures

Lost the instructions? Don't worry. Download PDF copies of product use manuals, instructions or brochures here.

Customer Support

Find out about our service plans and book your next appointment.

Customer relations

Please contact our customer relations team if you have any feedback, comments or criticism of our products or services.