Potterton Additional Upper Baffle Plate 5139873

The additional upper baffle plate, width 190mm, is a combustion-path component manufactured by Potterton Commercial for the NXR4i range of gas boilers. It sits in the upper section of the heat exchanger flueway, where it directs flue gases across the heat transfer surfaces. Fitting the correct baffle plate maintains the designed gas path and heat transfer characteristics of the appliance.

• Visible distortion, warping or scaling of the plate after prolonged heat cycling
• Corrosion or perforation of the plate surface
• Baffle plate missing from the upper flueway after servicing or strip-down
• Poor heat transfer or altered flue gas readings traced to an incorrect or absent baffle
• Physical damage to the plate edges where it seats in the flueway

• Confirm the boiler is a Potterton Commercial NXR4i and match the section count against the fit list
• Check the required plate width against the existing component before ordering
• Verify whether the appliance needs an additional plate or a replacement for an existing one
• Quote the part number 5139873 when checking compatibility