Built with the trades in mind

Precision in every calculation.

Practical hydronic system design software for mechanical contractors and heating designers. Explore the Hydronic System Simulator for design and simulation, and Field Audit for documenting site visits and exporting PDF records to your device.

Explore the Hydronic System Simulator

Built from the boiler room up.

Hydronics IQ Inc. started in mechanical rooms, wholesale supplier back offices, and commercial bidding. We create trade-focused alternatives to fragmented spreadsheets, rule-of-thumb approximations, and cumbersome academic software.

Deterministic output

Every calculation is traceable, so professionals can review and defend a design.

Trade-native workflow

Our software reflects how contractors bid, build, and document hydronic heating systems.

Component accuracy

Models are based on real manufacturer specifications and the physical realities of fluid dynamics, pressure drop, and heat transfer.

Hydronics IQ products

The Hydronic System Simulator

A browser-based hydronic heating simulator for mechanical contractors. Configure a system and see supply temperatures, return temperatures, flow rates, pipe sizing, and heat output update in real time.

Test boiler plants, hydraulic separators, mixing strategies, emitter loads, and part-load scenarios with transparent calculations.

Starter includes Design, Plant Drawing, pipe selections and sizing, and Simulation. Pro adds saved projects and scenarios, project information, reports, and print/PDF output.

View product details and pricing · Open the simulator

Hydronic Field Audit — $10 CAD one-time purchase

A browser-based worksheet for documenting zones, emitters, controls, plant equipment, pumps, and boiler-out troubleshooting. A one-time purchase provides continued browser access; no simulator subscription is required.

Preview and export PDF forms, save them to your own device, and send them to your office using your usual email or file-sharing app. Worksheets and equipment catalogs stay in this browser. No cloud backup is included. Online sign-in and purchase verification are required to open the tool.

Explore Hydronic Field Audit · Buy Field Audit — $10 CAD once

Hydronic System Simulator video tutorials

Five short walkthroughs demonstrate the workflow from initial setup through design checks.

Explore simulator features

Hydronics IQ field-note library

Reviewed job-site checks and practical guidance for hydronic installers and service technicians.

No approved notes are available yet. Reviewed field guidance appears here when scheduled for publication.

Field notes do not replace manufacturer instructions, project documents or applicable codes. Use qualified personnel.

Get in touch

Questions, feedback, or want to talk hydronics? Contact Hydronics IQ through the interactive form on this page.