The Complete MEP Toolkit for Revit

RIME is a professional Revit add-in built for MEP engineers. Accurate HVAC calculations, psychrometric analysis, ASHRAE constructions, and linked Excel documentation — all inside your Revit workflow.

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Now available for Revit 2024 – 2026

HVAC Loads·Cooling & heating loads, right inside the model

Signature Tool

Engineering Tools

IP & SI

Unit Support

ASHRAE

Standards Compliant

Revit 2024–2026

Compatible

Engineered for precision. Built for workflow.

Every tool in RIME is designed to remove friction from your MEP design process without sacrificing accuracy.

Native Revit Integration

Every tool launches directly from the Revit ribbon. No switching windows, no copy-pasting values.

ASHRAE Standards Built In

Calculations reference published ASHRAE data — Fundamentals, 62.1, 90.1 — so your numbers are defensible.

IP & SI Units

Toggle between imperial and metric unit systems instantly. Results update in real time.

Excel-Linked Docs

Xref brings Excel tables into Revit as native schedules that stay linked to their source and update in one click.

13 tools. One plugin.

Everything an MEP engineer needs, accessible from the Revit ribbon.

Revit Tools

Available Now

HVAC Loads

Calculate heating and cooling loads for any building space with ASHRAE-compliant methodology.

Ductulator

Size round, rectangular, and flat-oval ducts by CFM and friction rate in seconds.

Pipeulator

Size hydronic heating and cooling piping systems with accurate velocity and pressure-drop results.

Psychrometrics

Full psychrometric analysis — enthalpy, dew point, humidity ratio, wet-bulb — with a printable ASHRAE-style chart.

Auto Glazing

Automatically add curtain-panel glazing to the exterior walls of selected spaces or an entire level.

Schedulator

Edit Revit schedules in a spreadsheet view and exchange them with Excel — no manual copy-paste.

ST Creator

Create and edit native Revit space types in a spreadsheet — paste from Excel, no template juggling.

Xref

Bring Excel tables into Revit as native schedules that stay linked to their source and update in one click.

Auto Numbering

Spatially sequence any Revit category — clockwise, rows, serpentine — into a parameter, with a live plan preview before anything writes.

RefPipeSizer

Size refrigeration lines for ammonia, CO2, and A2L refrigerants — suction, discharge, liquid, and overfeed — per ASHRAE and IIAR practice.

Relief Sizer

Size pressure-relief valves and vent lines for refrigeration systems per ASHRAE 15 and IIAR 2 — fire-case capacity, orifice selection, and vent-line length.