Vaillant 981333 heat exchanger door/mixing arm

Product code: 501431

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Product Description

This heat exchanger door/mixing arm seal is a Vaillant brand spare part suitable for use in ecoMAX VU (condensing), ecoTEC VU (condensing), ecoTEC VUW (condensing), ecoMAX VUW (condensing) and ecoTEC VUI (condensing) boilers. The heat exchanger transfers heat from a boiler's burner to water. A primary heat exchanger is found in all boilers, using heat from a burner to raise the temperature of the water in the system while a secondary heat exchanger is present only in combis and allows the heat to be transferred between closed systems. Seals are designed to prevent leaks of water or harmful gases as they move through the boiler. We carry over 300 of the most in demand parts in-branch and stock over 25,000 spare parts available for next-day timed delivery.