Engineering calculations,
made simple.
Hours in spreadsheets or legacy tools — minutes in DENOVA. Cooling loads, psychrometrics, and sizing tools built for faster design decisions, cleaner reports, and calculations engineers can check, review, and defend.
| ZONE | AREA | COOLING | AIRFLOW | SHR |
|---|---|---|---|---|
| Z01 · Reception | 32 m² | 3.8 kW | 180 L/s | 0.78 |
| Z02 · Office (East) | 78 m² | 10.2 kW | 425 L/s | 0.82 |
| Z03 · Office (West) | 76 m² | 9.8 kW | 410 L/s | 0.81 |
| Σ Building | 186 m² | 27.1 kW | 1135 L/s | 0.79 |
| STANDARD | REGION | SCOPE | STATUS |
|---|---|---|---|
| ASHRAE Fund. 1997 | US/Global | Cooling load method (CLTD/CLF) | ✓ Cited |
| AS 1668.2 | AU/NZ | Mechanical ventilation | ✓ Met |
| AIRAH DA09 | AU | Load density benchmark | ✓ Within range |
| NCC Section J | AU | Energy efficiency provisions | i Reviewable |
| CIBSE Guide A | UK/EU | Comfort criteria · 22°C ± 2 K | ✓ Compliant |
| AHRI 550/590 | US/Global | Chiller efficiency rating | i Equipment selection |
Engineering calculations built for review.
In design review, a calculation is only as strong as its reference trail. DENOVA shows the inputs, formula, assumptions, reference basis, and methodology version behind each result — so engineers can verify the calculation, defend the design, and issue reports with confidence.
- 01Cited methodology. Every report includes the formula set used, with references to relevant standards, guidance, and calculation basis where applicable.
- 02Transparent inputs. Geometry, U-values, occupancy, ventilation rates, climate data, schedules, and assumptions remain visible — so another engineer can review, check, or repeat the calculation.
- 03Versioned calculations. Each project is linked to the methodology version used at the time of issue, helping keep design records traceable, reproducible, and easier to defend. Independent verification is on our roadmap.
| Term | kW | % total |
|---|---|---|
| Envelope conduction | 0.38 | 11% |
| Solar gain (W glazing) | 1.77 | 52% |
| Internal sensible | 0.87 | 25% |
| Internal latent | 0.44 | 12% |
| Total cooling load | 6.10 | 100% |
| Supply airflow @ ΔT=11K | 391 L/s | — |
And here's what you send to the client.
Click Print Report in the live app and you get a one-page PDF like this. Inputs at the top. Methodology in the middle with the equation rendered. Results at the bottom with the standards cited inline. CSV and JSON exports too — for teams who script their own pipelines.
Three steps.
Minutes, not days.
Type a zone. See the results. Export the cited PDF. We built Room Load Lite for engineers who'd rather be designing than reading manuals.
| Term | kW | % |
|---|---|---|
| Envelope | 0.67 | 11% |
| Solar gain | 3.17 | 52% |
| Internal sens. | 1.53 | 25% |
| Internal lat. | 0.73 | 12% |
| Total cooling | 6.10 | 100% |
Animated walkthrough · Open the real interactive app →
Animated walkthrough showing the three steps of the Room Load Pro workflow: inputs, results with diagrams, and the cited PDF report.
Seven engineering tools. Live today.
The Pro platform. Coming next.
Seven engineering tools live in your browser today. Three more on the way. All free, all browser-native. The Pro platform chains them into one connected workflow — coming next.
Engineering Tools Lite
Each one does the full sizing job — geometry, code, results, methodology. Each tool stands alone.
The Project Platform
Chains the ten engineering tools into one connected project. Change a wall thickness, every downstream calc updates. Available after the Lite soft launch.
tools
one sign-in
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By joining the Pro waitlist, you agree to receive launch updates and accept our Privacy Policy & Terms. You can unsubscribe anytime.
Four tiers. Start with Lite.
Lite is free — no trial countdown. Pro is paid when it ships, for the deeper work that pays for itself. Pro covers a single Pro tool of your choice. Suite bundles every Pro tool at the best $/tool ratio. Enterprise adds your firm's branding on reports, custom templates, and API access. Self-serve through Suite. Enterprise is by quote.
- ✓All Lite calculators (2 live · 8 in build)
- ✓Methodology cited inline
- ✓Multi-region: ASHRAE · AS/NZS · CIBSE · EN
- ✓Branded one-page PDF
- ✓Quick sign-in (name + email)
- ✓One Pro tool of your choice
- ✓Multi-zone projects · unlimited history
- ✓Schedule export (CSV) + JSON
- ✓Methodology in every report
- ✓Email support
- ✓Every Pro tool — bundled
- ✓Cross-tool project workflows
- ✓Bulk pricing vs per-tool
- ✓Shared project library
- ✓Priority email support
- ✓Everything in Suite
- ✓Your firm's logo on reports
- ✓Custom report templates
- ✓API access for integrations
- ✓Dedicated onboarding
- ✓Manual invoicing / PO support
Pricing for Pro and Suite is finalized at launch. Pro and Suite subscriptions are subject to our Terms of Service and Privacy Policy. Enterprise terms are negotiated per engagement.
The old tools earned their place.
The world moved on.
In the 1990s, when Trace and HAP launched, the internet was a 56k modem and most engineering offices barely had one. Engineers worked at desks, on Windows PCs, with one tool installed per machine. Those tools held everything you needed — climate libraries, equipment data, calculation engines, all on the local hard drive. That was the only way to do engineering software in 1998. It worked. It powered millions of projects. It built the industry we work in today.
Then the world moved. The internet went from 56k to 5G. Engineers stopped working at one desk and started working in client meetings, on iPads, on the laptop in the hotel. Calculations stopped being one-engineer-and-done and started being reviewed by colleagues, juniors, the firm next year. Software changed too — SaaS replaced installs, web replaced desktop, cited sources replaced appendices. The way engineers work in 2026 isn't the way they worked in 1998.
DENOVA is what engineering software looks like when you start over for this context. Browser-native, so it opens anywhere a browser opens. Methodology cited inline, so the review can happen anywhere too. Modular, so you only learn what you need. Self-serve, so there's no procurement cycle between you and the calculation. Same engineering rigour as the desktop era. New context. New tools.
- Per-seat licences in the thousandsMulti-year contracts, procurement cycles, annual renewals. The cost showed up on the budget every year.
- Multi-day training coursesEngineers stayed at firms for decades. Long onboarding paid back. 200-page manuals were the norm.
- Windows-first, desktop installWindows was where engineers worked. License dongles, IT-managed install via SCCM, version-locked.
- Methodology in appendicesEngineering publishing convention. Reviewers had time to dig through separate documents.
- One regional standards stackProjects were geographically tighter. ASHRAE OR CIBSE OR AS, rarely all.
- Free Lite, open now. Pro coming soon.Self-serve subscription when it launches. No procurement. No salesperson. Cancel any time.
- Hours saved on day oneJunior engineers ship work the day they start. The methodology teaches as you compute — no manuals to read first.
- Browser-native, every deviceMac, Windows, iPad, Chromebook. Same URL, same calculation. Open it in a client meeting.
- Methodology cited inlineStandards clause beside the result that produced it. PDF, CSV, JSON exports carry the citation.
- Multi-region from day oneASHRAE · AS/NZS · CIBSE · EN. Switch regional stack per project.
The old tools do the math.
DENOVA helps you defend it.
Engineering software for engineers who'd rather be designing than chasing IT for licence approvals. We won't pretend AI is doing the engineering — the engineer is doing the engineering, the software is doing the typing. Below: what we set out to build, and why we think it matters.
DENOVA builds practical engineering software that makes technical work faster, clearer, and easier to defend.
Become the global standard for browser-based engineering design tools — replacing legacy desktop software, one calculation at a time, with focused, modular, modern web tools that show their working.
Every calculation, formula, and standard reference must be defensible to a senior engineer. Aesthetics never compromise correctness.
We build features that solve real problems for working engineers — not features that sound impressive in a demo or a press release.
Every input, assumption, and output is visible, traceable, and reviewable. We never ship black-box calculations.
Every product is a building block. Tools work standalone, integrate as bundles, and compose into a complete engineering OS over time.
AI augments engineering judgment — it never replaces it. Every AI suggestion is visible, editable, and overridable.
The product looks and feels professional, but speaks plainly. No hype words, no AI buzzwords, no overselling.
The pattern repeats — tool after tool, until it adds up to a system.
Stop reading. Open it.
Room Load Pro is one click away. No install. Lite is free and open right now. Pro launches with the full suite — sign up to know when.
