FireCAD vs Dynamica Thermal Science: an honest comparison for boiler engineers

I have spent fifteen years designing, selling and operating boilers, and for the last two of them I have been managing a fleet of seven biomass boilers at a multinational. FireCAD comes up in almost every procurement conversation I have with peers. Dynamica is the tool I started building because none of the desktop options matched the way my team actually works day to day.

This article is not a takedown. FireCAD has real strengths and a loyal user base for good reasons. The goal here is to lay the two side by side with sources, so you can make a defensible call for your own context.

Dynamica's edge is the validation corpus, the per-result provenance hash, the operations modules FireCAD doesn't address — and an AI co-pilot that runs those same engines with citations, which no FireCAD-class tool offers.

At a glance

For fleet operators

If your day job is keeping commissioned assets running — efficiency tests after a fuel change, wall-thickness inspections at outage, tracking remaining useful life on a superheater bundle — FireCAD is not really aimed at you. Its core is the thermal sizing of new boilers and the mechanical drawings that follow.

Dynamica was built around the operations side first. Boiler Performance, Wall Thickness, Fleet Management, Maintenance RUL and the 1D Network Solver all share the same project workspace, the same IAPWS-IF97 backend and the same audit trail. That is the workflow I needed at the multinational and could not buy off the shelf.

For EPCs and consulting firms

EPCs and consultancies live and die by reviewer trust and by being able to hand work between engineers without losing context. FireCAD's depth on tube bundle layout and fabrication-grade output is genuinely useful when you are responsible for delivering a new unit. The trade-off is that the project lives in a desktop file on one workstation.

Dynamica's Team plan was built for the other half of that work: per-project membership so each client engagement is siloed, a 30-day audit log of who computed what, reviewer sign-off, and white-label PDFs on your firm's letterhead. If you are running five concurrent feasibility studies for five clients, that structure matters more than the depth of any single calculation.

For academia

For teaching and coursework, the calculus is mostly about cost and access. A site licence for a Windows desktop tool at FireCAD's list price is a tough sell for a single course. Dynamica's free public calculators cover the steam-tables and basic boiler performance work that most undergraduate thermodynamics courses ask for, and the Student tier exists for the rest.

That said, if your research group needs the detailed mechanical output that comes with FireCAD's thermal design — superheater geometries, tube spacings, fabrication-ready layouts — Dynamica is not the right tool.

When FireCAD is still the right call

I want to be explicit about this because the rest of the article naturally tilts the other way. FireCAD is the better choice when:

• You are designing a new fired boiler from scratch and need detailed mechanical output — tube bundle geometry, header layouts, fabrication drawings.
• Your deliverable is a stamped mechanical design package, not an operations report or a performance test.
• Your client or QA process specifically asks for FireCAD output or an equivalent dedicated boiler-design package.
• You work alone, on a Windows workstation, and a desktop file with no collaboration features is a feature rather than a limitation.

Those are real cases. If you are in one of them, the rest of this article is mostly academic.

Full feature matrix

Thermal design

Operations

Collaboration

Validation

Procurement

Pricing band

FireCAD's published single-seat list price sits around $3,950 per year.² Dynamica's Pro plan is $49 per month for a single engineer with a one-active-session policy, and the Team plan is $499 per month for firms that need per-project silos, reviewer sign-off and white-label PDFs. Enterprise is a custom quote.

The honest reading is: if one engineer needs only thermal-design depth, FireCAD's annual licence is in the same order of magnitude as a year of Dynamica Pro. The cost picture changes when you add collaboration or fleet coverage, which Dynamica bundles and FireCAD does not address.

Migration offer

If you are evaluating a switch, send a FireCAD project (or any equivalent design report) to hello@dynamicathermalscience.com and we will reproduce one of its calculations in Dynamica, free, so you can see the output side by side before you commit. No sales call required.

Sources

1. FireCAD — System requirements (Windows). firecad.net/system-requirements
2. FireCAD — Pricing page. firecad.net/pricing
3. FireCAD — Download / trial. firecad.net/download
4. FireCAD — Features overview. firecad.net/features

Disclosure: I'm the founder of Dynamica Thermal Science. FireCAD® is a trademark of its respective owner; this article is an independent comparison and I am not affiliated with FireCAD. Pricing and feature claims about FireCAD reflect what is published on firecad.net at the time of writing — check the linked sources for the current figures.