======PHErde====== The Tool PHErde is intended to serve passive house planners as an aid for the design and calculation of brine-to-earth heat exchangers (EWÜ). The corresponding article in protocol volume No. 43 contains information on practical experience with brine-to-earth heat exchangers, as well as sample calculations and application notes for the design tool PHErde. [{{ :picopen:ph_erde_tool_cover_image.jpg?600 |PH Erde Tool}}] ---- If you are interested in the PHErde programme, please write an e-mail to: mail[at]passiv.de This tool was developed within the framework of the “Arbeitskreis kostengünstige Passivhäuser - AK 43”. ---- Click [[:planning:tools|here]] to go back to the main menu.