AHU Selection Software Compared (2026): The Independent Platforms

If you manufacture air handling units, the first thing to get straight is a distinction most "best of" lists miss: there are two very different categories of AHU software, and they solve different problems.

• Vendor-native selectors — a manufacturer's own tool that selects that manufacturer's units. Swegon AHU Design selects Swegon units; TANGRA's tool selects TANGRA units. Excellent if you buy from them, irrelevant if you build your own AHUs.
• Independent selection platforms — software licensed to many manufacturers, letting each configure its own units from third-party components. This is the category AirSelect3D competes in, alongside AHU Selection (ahuselection.com), airCalc++, Dogmatik AHU.SELECTOR, Kinetix Air and ALTEC.

This comparison is about the second group — written by the AirSelect3D team, so read our column knowing the source and verify every competitor claim on their own pages (linked at the end).

The independent platforms at a glance

Capability	AirSelect3D	AHU Selection (ahuselection.com)	airCalc++	Dogmatik AHU.SELECTOR	Kinetix Air	ALTEC
Platform	Web, no install	Web	Desktop-heritage, licensed per OEM	Web	Cloud	Desktop
Maturity	New (2026)	Established — 80+ clients, 20 countries	Established — 10+ yrs, many OEMs	Established	Established (North America)	Established
3D	Drag-and-drop 3D design	2D/3D views + BIM/IFC	Design & production drawings	2D/3D visualization (WebGL)	3D model output	3D live-view
Manufacturer data	Certified engines, source-tagged	90+ manufacturers, 25+ Eurovent brands	Multi-vendor	Integrated supplier data	150+ (mostly N. America)	Integrated catalogues
Eurovent / ErP	Live ECP-05-2026 class + ErP, both seasons	Eurovent support, ErP 2016/2018	Established EU compliance heritage	ErP calculation	Not stated	ErP / SFP
Export	14-page TDS, DXF, IFC, BOM	DXF, BIM/IFC (Revit)	DWG, production output	TDS, DXF, IFC, BOM, tender	Drawings, BOM, pricing	Drawings, TDS
Free trial	Book a demo	Yes	Via provider	On request	Not stated	On request

Sources: each product's own public pages (linked below), read 2026. Rows summarise their published claims in good faith; verify current specifics with each provider. Blank/"not stated" means we found no public claim, not an absence of the feature.

The honest landscape

AHU Selection (ahuselection.com) is the established leader of this niche. Its own site cites 90+ integrated manufacturers, 25+ Eurovent-certified component brands, 2,500+ users across 80+ clients in 20 countries, 2D/3D drawings with BIM/IFC export, and ErP compliance. If you're evaluating independent platforms, it's the incumbent to benchmark against — and any newcomer, ours included, should be measured honestly against that track record.

airCalc++ is the other long-standing incumbent — an independent "design, selection and production" software licensed to many AHU manufacturers (specialist implementers like Dogmatik have worked with it for over a decade). It carries deep European compliance heritage. Public technical detail is thinner online, so confirm current specifics with the provider.

Dogmatik AHU.SELECTOR, Kinetix Air and ALTEC round out the field — Dogmatik web-based with WebGL 2D/3D and ErP; Kinetix a North-American cloud platform leading on AI automation across 150+ (largely US) manufacturers, without stated Eurovent/ErP; ALTEC a desktop tool with 3D live-view.

Where AirSelect3D fits

We're the new entrant, so here's the honest pitch: AirSelect3D isn't trying to out-catalogue a platform with 90+ manufacturers on day one. Its wedge is how you work and what compliance you see while you work:

• The 3D canvas is the design surface, not a viewer. You drag modules onto the casing, they snap to the airflow centreline, and dimensions plus results recompute as you move them — you design in 3D rather than generating a 3D view of a form-based result.
• Compliance updates on every edit. The Eurovent ECP-05-2026 energy class — separate winter and summer fs-Pref ratios — plus the ErP verdict and SFP to EN 16798 recompute live, so a non-compliant configuration flags before it reaches a customer.
• Every number is source-tagged. Each result row shows whether it came from the manufacturer's own engine or a catalogue — provenance you can hand to an auditor.

How to choose

Don't choose from a feature grid — choose from a timed, side-by-side demo on your real unit. Run one complete selection on each shortlisted tool (template → operating point → component picks → compliance verdict → exported dossier) and watch three things: does the 3D let you design or only view; does the Eurovent/ErP verdict update as you edit or only at print; and can you trace every performance number to its source. Then pick on what your engineers actually felt.

Run that test on AirSelect3D and hold every platform to the same clock. New to the category? Start with our 2026 buyer's checklist.

Sources: AHU Selection — ahuselection.com, airCalc knowledge base, Dogmatik AHU.SELECTOR, Kinetix Air, ALTEC AHU Designer, Swegon AHU Design.