HVAC Design

New HVAC Design Navigator

IES VE 2026

From fully formed geometry to sized equipment in about an hour. This guided, end-to-end workflow consolidates key VE and ApacheHVAC tasks into one sequenced flow, with an output at each stage that confirms you're on track.

  • Focused workflow for the Mechanical Engineer
  • Fully formed geometry to sized equipment in about 1 hour
  • Delivers modern HVAC Design: 3D model, the ASHRAE Heat Balance Method and dynamic calculations
  • Removes key friction areas:
    • Zone Manager (phase 1) eases room-to-zone assignment with auto-creation and zone visualisation
    • HVAC Sizing preferences and defaults decoupled from performance simulation
    • Climate-filtered constructions — only see templates relevant to your project
    • Consolidated & updated ASHRAE 90.1, 62.1, and 55 reference data

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HVAC Design

Tabular Editing for Room Unit Controllers

IES VE 2026

Edit room-unit controllers in bulk, not one room at a time. Spreadsheet-style group editing replaces one-by-one editing and brings room-unit controls in line with the tabular editing already available for airside networks.

  • Review and group edit radiators, radiant panels, chilled ceiling panels and direct-acting heater/coolers across many rooms at once
  • Works for multi-room HVAC zones
  • Faster, more consistent modelling of room unit controllers
  • Especially valuable for heat-pump and decarbonisation retrofit projects
Interoperability

IES Sync for Revit - New Product

Bring your Revit model and IES workflow together so they work as one. No more losing time re-creating geometry when you move between tools - more time on analysis tasks that add value. IES Sync for Revit is a native intake from Revit into IES VE, not another file format or third-party geometry bridge. 

  • New product, the first step in a connected IES Ecosystem
  • Not another file format - built on a shared intelligence layer native to IES
  • Direct intake from Revit into IES VE without hours of manual geometry rework
  • Trustworthy geometry import including voids and air plenums (Version 1)
  • Clear model-review and validation, shaped by user interviews (Version 1)
  • Ability to transfer energy-relevant data such as constructions and materials coming (Version 2)

Available to purchase now - register your interest 

Data Centre Modelling

New Premium Data Centre Feature

IES VE 2026

Dynamic simulation delivers robust evidence to design, optimise and operate AI ready Data Centres under real-world and future climate scenarios. VE 2026 introduces a new premium data centre feature. Delivering first-to-market and unique liquid/hybrid cooling and new server rack component capabilities, built for today's high-density AI facilities.

  • New premium Data Centre feature powered by ApacheHVAC 
  • First-to-market unique liquid/hybrid cooling analysis
  • Model direct-to-chip, side wall, rear-door, immersion and top of rack fan strategies
  • Assess potential for free or evaporative cooling, and water -use impact
  • New Server Rack components that can be connected directly to cooling system models
  • Supports non-water coolants with configurable fluid properties to enable realistic representation of emerging cooling strategies
  • Represent high-density layouts realistically, without estimates and workarounds
  • Up to date thermal templates aligned to ASHRAE 90.1 & 90.4 support compliance

Unlock Premium Access to Advanced Data Centre Modelling

Parametric Simulation

Faster, More Transparent Parametric Simulation

IES VE 2026

An improved and streamlined end-to-end workflow that's safer to run and clearer to interpret. These updates build on functionality updates for this feature delivered within VE 2025, which included the addition of location, envelope template and PCM parameters, plus TEDI and DHW outputs.

  • Never lose a run - reports now generate even when a permutation fails or a study is cancelled
  • Protect your base model - a new automatic backup prevents accidental overwrites
  • Review your permutations before you simulate - know exactly what you're testing before you commit by exporting permutations to Excel
  • Results you can trust and trace - reports now clearly show which study they relate to
Compliance

Once Central Home for Ventilation

IES VE 2026

A new Ventilation tab creates one central home for all ventilation inputs, up-to-date with the standards you're audited against. A dedicated Ventilation tab available from the Building Template Manager and Space Data dialogues.

  • Current with ASHRAE 62.1 (2019/22/25) and 170 (2017/21/25) versions built in
  • Option for the simplified Ventilation Rate Procedure route now sits alongside the fuller Appendix A
  • Automatic air-density correction by altitude for outdoor air calculations
  • Tighter Title 24 integration
  • Leed V5 increase in Breathing Zone requirement addressed
  • New standardised ASHRAE ventilation report (HTML, PDF, and spreadsheet)
  • Redesigned layout, with inputs flowing directly to ApacheHVAC System Parameters
Compliance

Up-to-date ASHRAE Templates

IES VE 2026

ASHRAE 90.1, 62.1, and 55 templates are now updated and consolidated into a single reference database with refreshed version and template mapping, removing manual time consuming data tasks.

  • All current ASHRAE 90.1, 62.1 and 55 versions built in, so you start with accurate reference data
  • Updated 90.1 profiles across 2010-2022, include nine lighting categories
  • Default sequencing of internal gains by Computers, Lighting, and then People
  • 62.1/170 updates lay the groundwork for the ASHRAE 90.1:2022 Navigator coming later this year
  • New Data Centre thermal templates aligned to ASHRAE 90.1 & 90.4 for compliance
Compliance

CIBSE TM59:2026 Navigator

IES VE 2026

Get TM59:2026 overheating assessment capability as a simple Content Store download - no software upgrade needed. The new Navigator guides you through each stage exactly as the standard requires, in a demonstrable manner as required by the standard.

  • Premade templates and automated room-group creation get you to analysis faster with less setup
  • Dedicated TM59:2026 analysis dialog covering stage, occupancy category and ceiling fans removes manual groundwork
  • Client-ready PDF report presents results in a clear, shareable format, covering Approved Document O requirements
  • Fully editable - all templates, opening types and profiles are user-editable with no locked inputs

Download now

Scripting & Content Store

Python Scripting V3.13.12

IES VE 2026

The IES Python API and all existing Content Store packages are upgraded with every script re-tested, so your existing code continues to run unchanged while staying secure and supported.

  • Built-in type hints catch errors before code runs, making script development faster and safer with fewer bugs
  • Growing Content Store of ready-to-use Python tools - install directly with no scripting required
  • Waterside Heat Recovery Analysis Report evaluates recovery potential from hot/chilled water loops (with partner ZeroEnvy)
  • Hourly Profiles Import brings external spreadsheets of large profile datasets into ApPro automatically