HVAC Design & Simulation Software

Design & Simulate HVAC Systems that Perform

Confidently design, size, and simulate HVAC systems that deliver on performance, comfort, and cost - before installation begins.

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proven concepts library and inspiration library in the Hysopt software

Eliminate oversizing and design errors with model-based engineering

Move beyond outdated design assumptions by creating detailed, system-level HVAC models that reflect real thermal, hydraulic, and control behavior.
Catch design flaws early with live hydraulic validation and automated error detection—eliminating costly surprises on-site.
Leverage a library of proven concepts to standardise best practices and accelerate the design process across teams and projects.

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See how the Hysopt Designer helps you build smarter HVAC systems

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Run dynamic simulations to test system behaviour under real conditions

Simulate how your HVAC system will actually perform—across daily, seasonal, or load-based variations—before it’s ever built.
Test and compare multiple design options using clear KPIs like energy use, CAPEX, OPEX, CO₂ emissions, and comfort metrics.
Present clients and stakeholders with transparent, evidence-backed choices to support informed decision-making and risk reduction.

Want to test before you build?

Discover how the Hysopt Simulator predicts real-world performance

dynamic system simulation in the Hysopt Simulator

Automate calculations and component sizing for accuracy and compliance

Eliminate manual calculations by generating accurate flow rates, temperatures, pressure losses, and pump head data directly from your system model.
Ensure every component is properly sized and compliant—whether using manufacturer-specific selections or generic options.
Save valuable engineering time with instant recalculations and fully exportable BOMs, ready for procurement or commissioning.

Need faster, more accurate sizing decisions?

Explore how the Hysopt Calculator speeds up compliant HVAC design

Frequently asked questions

What is model-based HVAC engineering and how does it help?

Model-based engineering creates digital models of HVAC systems that simulate thermal, hydraulic, and control behavior. This approach eliminates oversizing, catches design flaws early, and ensures performance aligns with real-world conditions—saving time and reducing costly on-site surprises.

How does Hysopt improve HVAC system design compared to traditional methods?

Hysopt automates complex calculations and component sizing, replacing manual tools like Excel. Engineers can simulate system performance, validate hydraulics live, and access a library of best-practice templates to standardize design across projects.

Can I compare different HVAC design options with Hysopt?

Yes. The Hysopt Simulator allows users to test and compare multiple system designs using KPIs such as energy consumption, OPEX, CAPEX, CO₂ emissions, and comfort. This supports transparent, data-driven decisions.

Is Hysopt software suitable for compliance and procurement workflows?

Absolutely. The Hysopt Calculator ensures component sizing and flow rates meet compliance standards. It also generates exportable BOMs, which are ready for procurement and commissioning—saving engineering time and ensuring accuracy.

Who benefits most from using Hysopt’s HVAC design tools?

HVAC engineers, consultants, contractors, and project stakeholders benefit from Hysopt’s tools. Whether you're designing new systems or retrofitting existing ones, the ability to predict performance and avoid errors brings value at every stage.