Please log in to use the calculators on this website.
The use of the calculators is currently free. The username is 'me', the password is 'passme'.
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Note: The calculators works only with Internet Explorer.
The Internet Service Provider is currently upgrading their system. Several of the programs including the H1 calculator are going to be not available for the next 24 hours. Sorry for any inconvenience.
The Design Navigator website offers you a range of online calculators for buildings. You also find a lot of useful information in the Solar Design FAQs and the listed links and case studies.
