Heat ExchangerSelection Software
Professional thermal analysis for DX evaporators, condensers, chilled water, hot water, and steam coils. Designed for engineers who demand accuracy.
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Complete Heat Exchanger Analysis Suite
Five specialized calculators covering all major heat exchanger types used in HVAC&R systems
DX Evaporator Calculator
Complete thermal analysis for direct expansion evaporator coils using a segmented finite-volume solver. Automatically detects wet/dry coil conditions and calculates two-phase refrigerant behavior with energy balance verification.
- Segmented finite-volume solver with wet/dry detection
- Two-phase refrigerant modeling (R410A, R32, R134a, R290, R1234yf, R22)
- Automatic energy balance verification (0.00% error)
- Psychrometric analysis with dehumidification
- Professional PDF reports with coil drawings


DX Condenser Calculator
Advanced 3-zone segmented solver for air-cooled condensers. Separately calculates desuperheat, condensation, and subcooling zones with automatic energy balance and approach temperature optimization.
- 3-zone analysis: desuperheat, condensation, subcooling
- Zone-by-zone capacity breakdown
- Approach temperature optimization
- Multiple refrigerant support
- Automatic energy balance verification



Dehumidifier Builder
Build complete dehumidifier systems with automatic compressor matching. Select from 21 Copeland ZP scroll compressors with real performance data.
- 21 Copeland ZP scroll compressor models
- Automatic capacity matching algorithm
- Real compressor performance curves
- Complete system specifications
- Professional PDF system reports



Project Manager
Organize your calculations by project with automatic model code generation. Track all coils, systems, and dehumidifiers in one place with full version history.
- Automatic model code generation (e.g., EC-DXE-001)
- Project-based organization
- Full calculation version history
- Multi-coil project support
- Client and location tracking
Built for Professional Engineers
Every feature designed to save time and improve accuracy in your HVAC&R projects
Fast Calculations
Get accurate results in seconds with our optimized calculation engine. No waiting, no delays.
Secure & Reliable
Your data is encrypted and backed up automatically. Enterprise-grade security for your projects.
Accurate Results
Industry-standard correlations validated against manufacturer data. Trust your calculations.
Trusted by HVAC&R Engineers
See what professionals are saying about ExCoil
"ExCoil has transformed how I approach heat exchanger selection. The energy balance verification gives me confidence that my calculations are accurate. The 0.00% error is not just marketing - it's real."
"The Dehumidifier Builder with automatic compressor selection saved me hours of manual calculations. Having 21 Copeland compressors with real performance data is invaluable for system design."
"The Project Manager feature keeps all my calculations organized with automatic model codes. Professional PDF reports impress clients and the version history is essential for project documentation."
Trusted by engineers at leading companies
Ready to Streamline Your Heat Exchanger Calculations?
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