84 mechanical engineering design calculations, AI-assisted, browser-based.
84 mechanical engineering modules covering loads, ventilation, equipment, hydronic + steam + airside distribution, controls, compliance, deliverables, and economics. Pick what your project needs. Save the combination as your firm's reusable template. Run on every job. Office, lab, hospital, data center, district plant — the same tool, the same data bus, your project's shape.
Three fully implemented methods for peak heating and cooling loads. All are altitude-corrected and include latent outdoor air loads.
Full ASHRAE 62.1-2019 compliance — per-zone Vbz/Voz and multiple-zone recirculating system outdoor air (Vou, Ev, Vot) with diversity.
Darcy-Weisbach friction factor with Colebrook iteration. Four network topologies with full pressure drop and pump head calculations.
Equivalent diameter method with friction loss and velocity constraints. Full duct network solver for supply and return systems.
Rule-based system recommendation wizard — building type, load, climate zone, and zone count → ranked system recommendations with rationale.
Humidity ratio, dew point, enthalpy, and wet-bulb per ASHRAE Fundamentals. Moist air properties for any design condition.
Automated rule checks against ASHRAE 90.1, IMC, and NFPA. Flags critical issues and provides code references at every step.
6-page PDF engineering report, CSV schedules, and markdown summaries — all generated in one click. No external PDF dependencies.
Pre-built templates for commercial, industrial, and specialty project types — office, hospital, data center, chiller plant, wastewater, and more.
Control sequences and BMS point lists generated from your system design. Covers HVAC unit, plant, and terminal unit control logic.
Capital cost, operating cost, and 20-year life cycle cost analysis. Compare system alternatives side by side.
gbXML 7.03 export with project spaces, areas, and design loads. Compatible with Revit, IES VE, OpenStudio, eQUEST, and other gbXML-aware tools — populate a Revit space list without re-typing your zones.
Side-by-side schematic comparison of 4 HVAC system archetypes — VAV+CHW+HW, 4-pipe FCU, VRF, water-source heat pump loop. Capital cost range, annual energy, mech room footprint, and 15-year LCC, scaled to your project area.
Convert any project into a reusable template. Build a per-firm template library that captures your default scope, zones, and inputs — every new project starts from your firm's baseline, not a blank workspace.
Polished 2-page summary with project meta, design conditions, building loads, ventilation, and full equipment schedule. Engineers paste it directly into submittals and basis-of-design documents.
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