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WOLF technical tip for professionals: Find out how easy it is to swing out the heat exchanger of the WOLF CGB-2 gas condensing boiler. With Flip&Clean, maintenance is particularly easy! More information about the product: https://www.wolf.eu/shk-profi/produkt... Attention: Installation, commissioning and maintenance may only be carried out by an approved specialist and in compliance with the operating and assembly instructions. (The hazard warnings listed in the operating and maintenance instructions apply)