1. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 1 Aluminum/silicon – the high-quality material for heating blocks Heating blocks made of aluminum/silicon

2. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 2 Heating blocks made of aluminum/silicon What do you and your customers expect of a modern heat exchanger? High robustness for a long life High heat exchanger output Absolute operational reliability Optimum protection of the environment Low-noise operation

3. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 3 Heating blocks made of aluminum/silicon Our decision is firm For years, we have successfully used cast aluminum/silicon to manufacture our heat exchangers.

4. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 4 Heating blocks made of aluminum/silicon Aluminum/silicon: A high-quality material with outstanding technical characteristics Very good casting characteristics Good conductivity All components can be cast directly onto the block and secured

5. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 5 Heating blocks made of aluminum/silicon Aluminum/silicon: Absolutely outstanding thermal conductivity Outstanding conductivity Optimum positioning of ribs for the best possible heat transmission Sizes, distances and wall thickness are measured to precisely match the physical demand

6. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 6 Heating blocks made of aluminum/silicon Aluminum/silicon: guarantees reliable operation without disturbances Robust resistance to calcification and dirt thanks to variable adjustment of the water channels Burner works reliably and with no boiling noises A cast Al/Si heating block guarantees quiet operation No danger of stress cracks means no risk of leaks in the block

7. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 7 Heating blocks made of aluminum/silicon Aluminum/silicon: Environmentally friendly, energy-saving operation High conductivity allows the water channels to be generously sized > low energy consumption by the pump Optimum alignment of the distance between the burner surface and the wall of the heating block > significantly lower emissions

8. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 8 Heating blocks made of aluminum/silicon Aluminum/silicon: Clean and economical operation Acid-free cleaning: just use water and a brush Low maintenance effort Low maintenance costs Condensate has a good pH value > long service life of the corresponding components

9. © BBT Thermotechnik GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. 9 Heating blocks made of aluminum/silicon Junkers – Warmth for life Thank you for your interest.