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10-Year Guarantee against leaks resulting from corrosion on the stainless steel heat exchanger

All Viessmann condensing boilers are now equipped with a stainless steel heat exchanger. This technology brings with it an extremely high 98% efficiency and exceptionally safe and efficient operation during its long service life. It is no surprise then that Viessmann offers a 10-year guarantee against leaks resulting from corrosion on the stainless steel heat exchanger.

The guarantee is offered subject to the following conditions:

  • A maintenance contract must be taken out and proof of maintenance in accordance with the technical documents provided.
  • Gas, fuel oil, water and combustion air conditions meet Viessmann specifications.
Viessmann stainless steel heat exchanger.