I just set up a 79 node looped ESFR calculation and sized the fire pump in under an hour, while still getting familiar with the new features. The data entry and quality-of-life updates alone are excellent. These new features are going to save us a ton of time.
HASS
Cloud
50 years of pioneering. Reimagined for the next 50.
The most trusted name in hydraulic calculation software is now in the cloud.
Purpose-built for the way fire protection professionals work today.
NFPA 13 / EN 12845 / CEA 4001 / 50+ Intl. Standards

Results Dashboard
See Results at a Glance
Modern data visualization: hydraulic graphs, pressure indicators, pipe velocities, and node analyses. Assess system performance instantly without digging through raw data or reports.
- Hydraulic graphs
- Pressure indicators
- Node analysis
- Single-click reports

Collaboration
Share Projects, Work Together
Share with teammates, clients, or your entire organization. Multiple engineers on the same file, at the same time. No more emailing files, version conflicts, or waiting.
- Instant file sharing
- Role-based access
- No file conflicts

Side-by-Side Comparisons
Run multiple calculations and compare them side by side. Evaluate different pipe configurations, supply scenarios, or remote areas simultaneously.
- Multi-calc compare
- Supply scenarios
- Remote areas

Reduce Build Time
from Hours to Minutes
Automatically construct tree, grid, or complex sprinkler layouts. Intelligent system builders cut build time from hours to minutes.

Built on Four Pillars
Trusted Accuracy
The same HASS calculation engine trusted in nearly 50 countries for 50 years, now in the cloud. NFPA 13, EN 12845, CEA 4001, and more.
Purpose-Built
Every feature and workflow designed specifically for hydraulic calculation and fire protection system design. No workarounds or adaptations.
Real-Time Collaboration
Multiple engineers on the same file, at the same time. Shared workspace with role-based permissions. No file versioning issues.
In the Cloud
Built for the cloud from the ground up. Instant access from any browser, no installs, no dongles, no manual updates. Zero IT overhead.

50TH ANNIVERSARY
Ready to Experience
HASS Cloud?
See what 50 years of fire protection expertise looks like in a modern cloud platform. Sign up for a free trial and discover how HASS Cloud can transform your workflow.
