The complete platform for HVAC system design
Size systems, calculate airflow, and auto-select terminals with precision. Built for mechanical engineers who demand accuracy and efficiency.
Everything you need for HVAC design
Three powerful calculators working together to streamline your mechanical design workflow
- Ventilation rates
- Airflow balance
- Unit conversions
- Auto-selection
- Catalog integration
- Performance matching
- System totals
- Space assignment
- CSV exports
How it works
From space data to final schedules in four simple steps
Input Your Spaces
Enter space data manually or paste from CSV. Define areas, occupancy, and space types for each room in your project.
Calculate & Select
Automatic airflow calculations using ASHRAE standards. Auto-select terminals from the E.H. Price catalog based on performance criteria.
Create Systems
Organize spaces into RTU and AHU systems. View aggregated totals for supply, OA, exhaust, and cooling loads.
Export Schedules
Generate professional CSV exports for ventilation schedules, terminal schedules, and system summaries ready for your drawings.
Why engineers choose us
Purpose-built for mechanical engineers who demand precision and efficiency
Save Hours Per Project
Automate repetitive calculations and terminal selection. What used to take hours now takes minutes.
ASHRAE Compliant
Built-in formulas follow ASHRAE 62.1 standards for ventilation rates and system design.
Instant Calculations
Real-time airflow calculations with automatic balance warnings and unit conversions.
Scalable Workflow
Handle projects of any size from small tenant improvements to large commercial buildings.
Team Collaboration
Share projects with your team and maintain consistent calculation methods across your firm.
Export Ready Schedules
Ready to streamline your HVAC design workflow?
Join mechanical engineers who are saving hours on every project with automated calculations and intelligent terminal selection.