AIR DISTRIBUTION · SELECTION · SIMULATION
Grille selection
Supply, return and transfer grilles sized and checked in the room.
See what is inside →
GATE TO THE WORLD · ENGINEERING SOFTWARE FOR HVAC MANUFACTURERS
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Software for HVAC products. Ready-made or built for you.
Start with one of our proven package programs, or let us develop a new tool for your products and processes. Either way it runs in the cloud, in your brand.
G2W ENGINEERING SUITE
From selection to project.
One workspace for finding products, calculating and managing projects — in your brand, in your customers' language.
OPTION 1
Ready-made packages
- Proven programs, already in use
- Loaded with your products, data and brand
- Short time to launch
- Updated continuously
OPTION 2
Custom development
- New tools for any HVAC product
- Built around your engineering rules
- Integrated with your ERP, CRM and website
- Developed and maintained by engineers
On every screen your customers use.
Cloud-based and runs on Windows, macOS and iOS — on the desktop in the design office, on a tablet on site, on a phone in the meeting.
Inside the tools.
Real selection screens: enter the duty, compare results, download the report.
LIVE DEMO
WATCH LIVE
0:30 · REAL SELECTION · LOOP
0:30 · REAL SELECTION · LOOP
Air terminal selection. A complete selection in 30 seconds: room and duty in, the recommended diffuser out, then the airflow in section, plan and 3D.
Live screens · example project
TRY IT YOURSELF · LIVE DEMO
Try our software yourself.
A working demo, not a video: enter a room, press play and watch the air. Your customers can do the same on your website — with your diffusers and your data.
TRY ITG2W · ROOM AIRFLOW SIMULATOR
Ceiling diffusers in your room
THROW L0.22.4 m
SPACING4.00 m
MODECooling 9.0 K
TOTAL AIRFLOW880 m³/h
Good layout. Throw matches the spacing; air stays at the ceiling and reaches the occupied zone gently.
CHANGE ANY VALUE · PRESS ▶ · DRAG TO ROTATE
AIR VELOCITY m/s
0.10.250.5>1
Illustrative simulation · selection engine runs on your test data
AHU & COIL CALCULATOR · TRY IT
The whole unit in one view.
Change the airflow, open the exploded view and hover a section — filters, heat recovery, coils and fans with the unit data and documents beside them.
G2WAHU SELECTOR
PROJECT · OFFICE BUILDING L02 · AHU-01
Hover a section · example unit
- Unit
- [Your brand] AHU 16/22 · Indoor
- Supply
- 10,000 m³/h · 400 Pa ext. · 2.0 m/s
- Exhaust
- 10,000 m³/h · 400 Pa ext. · 2.0 m/s
- Heat recovery
- 82.0 kW · 74.1 %
- Supply filter
- ePM1 60 % (F7)
- Exhaust filter
- ePM10 55 % (M5)
- Cooling coil
- 46.2 kW · 7/12 °C
- Heating coil
- 17.6 kW · 60/40 °C
- Supply fan
- EC · 3.4 kW
- Exhaust fan
- EC · 3.1 kW
- Eurovent
- Energy efficiency class A+ (example)
- ErP
- Ecodesign 2018 compliant
- Size W×H×L
- 1.60 × 2.20 × 4.70 m
- Price
- From your price list
Our programs
Every program delivers calculation reports, product drawings and technical datasheets, and runs on Windows, macOS and iOS. Click a program to see what is inside.
What every program delivers
Calculation reports
Detailed, branded reports for your customers and end users.
Product drawings
Dimensioned drawings for the exact product and size.
Technical datasheets
Complete performance datasheets, produced automatically.
See it on your own products.
Let's talk about your products.
Choose what suits you best.
Service partners: 24/7 support, 365 days a year.
HVAC SELECTION SOFTWARE
G2W builds selection, calculation and configuration software for HVAC manufacturers — web tools and apps for Windows, macOS and iOS.
Grille selection software
Supply, return and transfer grilles · air terminal device selection · throw and velocity check.
Diffuser selection software
Swirl, slot, linear, plenum and jet-nozzle diffusers · airflow simulation · comfort check.
Silencer selection software
Duct silencers and sound attenuators · insertion loss per octave band · pressure drop.
Convector selection software
Floor and trench convectors · output per length and fan step · EN 442.
Damper selection software
Volume control, VAV/CAV, fire and smoke dampers · leakage class · actuators.
Fan selection software
Duty point on the fan curve · efficiency, SFP and sound · HRV units.
AHU calculation software
Air handling units sized section by section · psychrometrics · SFP · Eurovent performance.
Coil calculation software
Heating, cooling, DX and condenser coils · capacity and pressure drop · Eurovent performance.
Sound & duct calculation
System sound from fan to room · NR level · duct sizing and pressure drop.
Room & indoor climate design
All terminals in one room · airflow and comfort simulation · draught risk.
Configurators, catalogues & BIM
Product configurator · digital catalogue · Revit families and BIM objects.
Custom HVAC software development
Engineering software built for your products · web, Windows, macOS, iOS.
Questions engineers and manufacturers ask
What is HVAC selection software?
A program that picks the right product size for a duty — for example a grille, diffuser, silencer, damper, fan or convector — and checks it against airflow, pressure drop, sound and comfort limits. G2W builds these tools for HVAC manufacturers, branded as their own.
Which selection programs does G2W make?
Grille selection, diffuser selection and simulation, silencer selection, system sound calculation, fan selection, AHU calculation, coil calculation, duct design, damper selection, floor convector selection, room and indoor climate design, product configurators and digital catalogues.
How does a diffuser or grille selection program work?
You enter the room, the airflow and the temperatures. The program proposes type and size, calculates throw, induction, occupied-zone velocity, pressure drop and sound, and shows the airflow in section, plan and 3D.
How is a duct silencer selected?
From the duct size, the length available, the airflow and the sound target. The program calculates the required insertion loss per octave band and lists every attenuator that fits, with pressure drop and regenerated noise.
Do the tools run on Windows, macOS and iOS?
Yes. The tools run in the browser and as apps for Windows, macOS and iOS, with the same calculations and reports on every device.
Can you build software for our own product range?
Yes. Pick from our ready-made programs or describe your idea; we scope it and send a proposal. Add-ons include pricing, production data and Eurovent performance (ECC) documentation.