HVAC Design & Load Calculation
HVAC Design & Load Calculation vs CoolCalc
Web-based and ACCA-approved with 150,000+ users. Good Manual J but Manual S is still in Beta, no psychrometric tools, and per-project pricing can add up quickly.
CoolCalc
$50/mo
HVAC Design & Load Calculation
Free during beta
Feature comparison
| Feature | HVAC Design & Load Calculation | CoolCalc |
|---|---|---|
| Manual S | Full equipment selection with manufacturer data | Still in Beta |
| Psychrometrics | Interactive chart with coil analysis included | Not available |
| Heat pump sizing | Dedicated workflow with COP curves | Basic support |
| Sensitivity analysis | Instant what-if recalculation | Not available |
| Price | Free during beta | $50/mo |
Why switch from CoolCalc?
Manual S equipment selection still in Beta — incomplete J/S/D workflow
- Complete J/S/D workflow — Manual S is production-ready, not Beta
- Psychrometric analysis included at no extra cost
- Dedicated heat pump design workflow with balance point analysis
Try the CoolCalc alternative
Free during beta. No credit card required.