Please note that the values you are given by the program are not exact values, rather are simply approximate or guide values. Owing to the variety of duct systems on the market, approximate or guide values for standard duct systems are used when calculating the performance of the ventilation hood.

This program and the corresponding results therefore simply provide you with useful guidance. The decision as to which ventilation hood and duct system to use ultimately is based on a number of factors, especially the conditions locally, and should be made with knowledge of all the factors in consultation with a professional.

All claims for damages are therefore excluded, irrespective of the legal basis, unless we or our vicarious agents have caused the damage through gross negligence or intent or violated an obligation, the fulfilment of which is a fundamental requirement for proper implementation of the contract in the first place and for which compliance may be relied upon as a matter of course by the contractual party (essential contractual obligation). In case of a minor breach of essential contractual obligations, our liability is limited to foreseeable damages that are typical for the contract. Liability on account of culpable injury to life, limb or health as well as in the event of fraudulent concealment of defects shall not be affected.