30.04.2026

• UI/UX improvements to input forms
  • Replaced proprietary/custom UI implementation with a standardized div-based layout
  • Optimized checkbox and dropdown responsiveness (toggle with one click)
  • Improved tooltip position, clarity and readability
• revised mircoservice management
  • better handling of intermediate results, currentrly for U-values
• Added Phius Materials and Assemblies to Database
• Energy (norm) demand dropdown fixed to be selected after loading mwp
• Distribution DHW simple calculator: fixed pipe diameter unit
• Enhanced Error Messages – Improved diagnostic text for inhomogeneous assembly errors to quickly identify missing or undefined values
• Cooling System Validation – Added comprehensive value checks for cooling system and distribution inputs
• Component Grouping Logic – Refined grouping and ungrouping to ensure accurate component management without unintended duplication
• Target Calculator Update – Non-residential buildings now support average occupancy alongside total design occupancy for more detailed occupancy modeling

09.01.2026

• Phius core 2024 and Phius zero 2024 Certification criteria
• Phius 2024 target calculator (Check the calculated target values during use, as slight deviations may occur.)
• delete unused shared objects (materials, assemblies), revised check if not assigned anywhere
• Unfinished (UF) Protocol built in (for all standards)
• additional data added to climate database (country, heating degree days, cooling degree days)
• Auto-fill median energy use/rating for internal load (appliances) acording to Phius guidelines

bugfix

• fixed solar collector (no need to set share usage, add used for space heating checkbox)
• Inner loads change immediately if building type is changed
• Fixed an calculation error for the gas laundry dryer
• REM-Rate report values displayed with the correct unit
• Input box for the name of HVAC devices
• Fixed auto-fill for frame left-right-top-bottom values

13.11.2025

• ‘store and sync in the cloud’ revised so that, among other things, a project cannot be accidentally deleted

• Search in the Database
• New ‘View’ tab for components, to change colors and hide them in the visualization
• New ‘View’ tab for the Building – change, or move the center point (point of coordinates) for the visualization
• Rearange Component order in the Treeview (Drag&Drop)
• Default values for groundwater
• Posibility to change the input for thermal conductivity to [R/inch] insted of [Btu/hr ft °F] in the Settings
• Addes phius materials and assemblies to the database
• Activate/Deactivate automatic project data checking and calculation
• Get data from official database to user database
• After a browser reload, the current working project is retained.

also fixed before

• fixed database assembly edit form to set exchange material
• corrected the shown inner and outer surface resistance for components
• corrected the detected u-value for foundation interfaces
• white screen after select shared objects -> utilization pattern tab
• fixed some SI/IP unit convertions and values in the verification and site energy report
• fixed the link for the zone coverage of systems error to point the right screen
• fixed an bug for the list of ventiation units stay empty (not able to assign tho the duct)
• allow additional user defined shading factor above 1 (e.g. for winter/summer shading)
• fixed laundry condensation dryer input form

28.08.2025

Features

• Download Reports in PDF format
• Improved ‘Show / Hide Vertices and Distances’ in the 3D – Visulatization (With an right mouse click). Select vertices to show the distance between them.

Bugfixes

• Drain water heat recovery is now automatically set as addtional dhw device.
• Improved Sketch Up import with higher error tolerance. windows which where not on the same plane as the wall are now cut out of the wall and no longer overlap.
• updated confusing error messages (e.g. if a assemlby include no layer).

05.08.2025

Features

• Add ‘Show / Hide Vertices and Distances’ in the 3D – Visulatization (with an right mouse click). Select vertices to show the distance between them. (In development)

Bugfixes

• shown U-values and Thermal resistance were not converted correctly to IP-Units in the user interace.
• The check for the lowest design flow temperature was decreased for hydronic heating.
• Fixed an issue with inhomogenous Assemlies within imported *.mpw projects. The setting of subdivisions was different.
• Fixed the utilisation factor for Laundry Dryer in combination with an simplified domestic hot water calculation.

7.07.2025

• fixed and with internal loads – the ‘inside conditioned space’ box did not remain checked

25.06.2025

• Hot water piping uses Design flow temperature only from optional in conditioned space input in the general tab
• Design flow temperature is checked to be within 105°F and 180°F (fixed an error for negative dhw heat losses due to lower flow temperature than interior air temperature)
• added user setting pannel e.g. for global SI-IP unit setting
• removed hvac device coverage for mechanical ventialation (it is set via the selected rooms)
• added input validation for system-to-zone coverage (fix an error for zero heating/cooling source energy). A system must be asigned to a zone, if a device is defined.
• small correction calculating the thermal resistance for inhomgenous assemblies
• shown U-value and thermal resistance for assemelies is now converted to IP-unit
• fixed renewable energy set the ph case loading an mwp (fixed regarding the renewable energy)
• updated phius window database to point to the correct shgc value (center-of-glass, not whole window)
• (internal) improved calculation methodology
• (internal) error logging
• (internal) prepared language translation