Bosch 7738005272 Heat Exchanger Kit for Boiler - GB142/45

The Bosch 7738005272 is a genuine OEM heat exchanger kit designed specifically for the GB142/45 condensing gas boiler. This complete replacement kit is essential for maintaining the high-efficiency performance of your wall-mounted boiler system.

Key Features:

• Designed for GB142/45 boilers with 45kW (approximately 154,000 BTU) capacity
• Complete kit package includes heat exchanger component (7736700632) and Rhomar boiler commissioning kit (7738005279)
• Cast aluminum heat exchanger construction for excellent heat transfer and corrosion resistance
• Essential component for condensing boiler operation and maximum efficiency
• Genuine Bosch/Buderus OEM part ensures proper fit and performance
• Maintains the 95% AFUE efficiency rating of GB142 boilers

This heat exchanger kit is a critical replacement part for GB142/45 wall-hung condensing boilers used in residential and light commercial hydronic heating applications. The heat exchanger is the heart of the condensing boiler system, extracting maximum heat from combustion gases to deliver superior efficiency. Professional installation by a licensed HVAC technician is required for proper commissioning and warranty validation.