Changelog
Follow up on the latest improvements and updates.
RSS
New capabilities
Commenting
Reviewing and collaborating on designs is now easier in h2x. You can leave comments directly on any design element, right where the work is happening, so design and calculation feedback stays connected to the design instead of getting lost in email or chat.
Designs, calculations and comments are always up-to-date and live, so everyone on the project is reviewing the same, current version.
New capabilities available in your account:
- Leave comments and comment threads on any design element in the canvas
- Mention teammates in a thread to bring them into the conversation
- React, edit and delete comments
- Resolve comments once feedback has been addressed, so it's clear what's outstanding and what's done
Fixed Pressure Drop for Valves and Fittings
You can now select a fixed pressure drop from a dropdown for Valves and Fittings, instead of being limited to Zeta values.
General improvements & Bug fixes
- General improvements
- Minor bug fixes
1.161.0
New capabilities
Enhanced Coil and Airflow Design
h2x now performs more accurate coil and airflow calculations incorporating psychrometric processes including humidification and dehumidification. Designing accurate coils, airflows and ducts with ventilation systems have never been easier with h2x.
New capabilities available in your account:
- Calculate concept coil loads at the zone level and detailed coil loads with connected equipment
- Iterate on system designs and results quickly with new ventilation equipment capabilities
- View and filter coil and airflow calculation results at three peaks (terminal, coil, supply) and three conditions (actual, standard, mass) during design and export
- Revamped AHU properties panel, reorganised into Heating, Cooling, Specs and Connections tabs
- Export comprehensive and professional reports in PDF, Word Doc and Excel
Note that these are only available on the Heat Balance Method (Early Access). Go to
Project Settings > Methods > Heat Gain Calculation Method > Heat Balance Method Energy Plus (Early Access)
to use these capabilities. Go to P
roject Settings > Methods > Mechanical > AHU Sizing Method > Psychrometric (Early Access)
to turn on these capabilities. Once enabled, connect Zones to Ventilation Equipment (e.g. an AHU) and run calculations to see accurate coil loads, airflows and psychrometric results.Updated Heat Load Reports
Heat Load Reports have a refreshed look, brought in line with the new Heat Gain reports for a more consistent, professional handover document. The styling and layout have been updated and the report is easier to work with if you use DOCX exports, while the report content itself is largely unchanged. Legacy report exports are still available.
General improvements & Bug fixes
- General improvements
- Minor bug fixes
1.159.0
- General improvements
- Minor bug fixes
1.157.0
New capabilities
Custom Ventilation Equipment inlet & outlet locations
Configuring AHU and MVHR inlet & outlet locations to match your design is now faster and more flexible. h2x lets you customise which side each connection sits on, so your equipment reflects the real layout on site.
New capabilities available in your account:
- Change which side an inlet/outlet port sits on for Ventilation equipment
- Angle labelling (0°, 90°, 180°, 270°) for each connection
- Dynamic labelling that updates automatically when equipment is rotated
- New Flip button to horizontally reverse inlet/outlet locations, replacing the Right to Left toggle (spacebar shortcut still works)
Go to the equipment's Properties Panel > Specs > Connection Location to customise ports on your Ventilation equipment.
General improvements & Bug fixes
- General improvements
- Minor bug fixes
1.154.0
- General improvements
- Minor bug fixes
1.152.0
New capabilities
Enhanced Ventilation Design
h2x now performs more accurate coil and airflow calculations incorporating psychrometric processes including humidification and dehumidification. Designing accurate coils, airflows and ducts with ventilation systems have never been easier with h2x.
New capabilities available in your account:
- Psychrometric calculations for cooling and heating coils (supply, return, outside air and mixed-air states)
- Automatic zone air requirement calculations (cooling and heating peaks)
- Equipment coil load sizing across the full annual simulation
- AHU supply, outside air, return and exhaust airflow calculations
- Results displayed directly on equipment and zones in the canvas
Note that these are only available on the Heat Balance Method (Early Access). Go to
Project Settings > Methods > Heat Gain Calculation Method > Heat Balance Method Energy Plus (Early Access)
to use these capabilities. Go to Project Settings > Methods > Mechanical > AHU Sizing Method > Psychrometric (Early Access) to turn on these capabilities. Once enabled, connect Zones to Ventilation Equipment (e.g. an AHU) and run calculations to see accurate coil loads, airflows and psychrometric results.
ANSI/ASHRAE/ACCA Standard 183 compliance for peak heating and cooling load calculations
For customers in the US, h2x now complies with the ANSI/ASHRAE/ACCA Standard 183, a key compliance baseline for heating and cooling load calculations in the US.
Heat loads and Ventilation System Design capabilities in the Heat Balance Method (Early Access) are fully compliant. Go to
Project Settings > Methods > Heat Gain Calculation Method > Heat Balance Method Energy Plus (Early Access)
to access these capabilities. General improvements & Bug fixes
- General improvements
- Minor bug fixes
New capabilities
New Heat Gain Report
The New Heat Gain (Early Access) provides a clearer, more comprehensive summary of your heat gain calculations for documentation and client handover - available in both PDF and DOCX formats.
- Room-by-room heat gain summaries with peak loads
- Building-level totals and design conditions
- Breakdown by load type (solar, conduction, internal, ventilation)
- Refreshed formatting for improved readability and professional presentation
- DOCX format for easy editing, annotation and integration into your own client deliverables and specification documents
Note that these are only available on the Heat Balance Method (Early Access). Go to
Project Settings > Methods > Heat Gain Calculation Method > Heat Balance Method Energy Plus (Early Access)
to use these capabilities. Go to Exports Mode > Heat Gain Report (Early Access) > PDF or DOCX to download this report
General improvements & Bug fixes
- General improvements
- Minor bug fixes
New capabilities
Heat Gain Results Spreadsheet - Peak, Hourly, Monthly Time Series Data
A new spreadsheet export is available that provides peak, hourly and monthly heat gain data giving you full transparency into how loads change over time across the year. The spreadsheet format enables easy preparation of compliance documentation or to generate bespoke reports for stakeholders.
This spreadsheet includes:
- Peak hour heat gain results
- Hourly heat gain results for the peak day
- Monthly heat gain results
- Sensible, Latent, Total heat gain values as well as broken down into components
Note that these are only available on the Heat Balance Method (Early Access). Go to
Project Settings > Methods > Heat Gain Calculation Method > Heat Balance Method Energy Plus (Early Access)
to use these capabilities. Go to Exports Mode > Design Reports and the Heat Gain Time Series spreadsheet will be downloaded with the other reports.
General improvements & Bug fixes
- General improvements
- Minor bug fixes
New capabilities
Heat Load & Ventilation Zones
You can now create Heat Load and Ventilation Zones in h2x. Zones are the foundation for designing loads and airflow systems, making it easier than ever to design and calculate HVAC systems in h2x.
New capabilities available in your account:
- Create zones by selecting rooms in the canvas
- Modify zones to change which rooms belong to a zone at any time.
- Run zone simulations for heat gain and heat loss calculations at the zone level.
- Adjust zone design conditions like summer/winter indoor temperatures and relative humidities per zone.
Note that these are only available on the Heat Balance Method (Early Access). Go to
Project Settings > Methods > Heat Gain Calculation Method > Heat Balance Method Energy Plus (Early Access)
to use these capabilities. Go to Floor Plan Mode > Zones > Edit Zones to start creating zones.
General improvements & Bug fixes
- General improvements
- Minor bug fixes
New capabilities
Heat Gain & Heat Loss Results Panels
Customers can now view detailed heat gain and heat loss results directly while designing. No need to export a report to check heat loads.
These results are now available in your account:
- View room-level heat gain breakdowns (sensible & latent) directly on the canvas
- View room-level heat loss results in the side panel
- Click on any room to see a detailed breakdown of heat gains by element (walls, windows, internal loads, solar)
- Results update automatically after running calculations via the Canvas Bottom Toolbar > Calculation Graph
Note that these are only available on the Heat Balance Method (Early Access). Go to
Project Settings > Methods > Heat Gain Calculation Method > Heat Balance Method Energy Plus (Early Access)
to use these capabilities. General improvements & Bug fixes
- General improvements
- Minor bug fixes
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