The Complete MEP Toolkit for Revit

RIME is a professional Revit add-in built for MEP engineers. An EnergyPlus-validated heat-balance load engine, a complete refrigeration design suite, data-center plant sizing, and linked Excel documentation, all running directly on your Revit model.

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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.

Runs on the Model, Not an Export

Every tool launches from the Revit ribbon and computes directly on your model. No gbXML exports, no external apps, no re-entering geometry.

Validated, Defensible Numbers

Methods follow published ASHRAE data (Fundamentals, 62.1, 90.1, 15), and the heat-balance load engine is validated head-to-head against EnergyPlus.

Scratch-to-Permit Refrigeration

The refrigeration tools chain together: box loads flow into pipe and cycle sizing, relief and vessel design, and charge compliance, with no re-entry between steps.

Excel-Linked Docs

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

15 tools. One plugin.

Loads, air and hydronics, psychrometrics, a full refrigeration design chain, and data-center plant sizing, all of it accessible from the Revit ribbon.

Revit Tools

Available Now

HVAC Loads

Heating and cooling loads from a full heat-balance engine, validated against EnergyPlus and computed directly on your Revit model. No exports, no external apps.

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 on a pressure-aware, printable ASHRAE-style chart: state points, process lines, data-center thermal envelopes, and free-cooling hours from real weather data.

PlantSizer

Size data-center chilled-water plants (redundancy, flows and lift, tower selection), then run an hourly annual energy model with an ASHRAE 90.1 baseline, utility-rate and thermal-storage economics, and water usage.

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 into a parameter, clockwise, in rows, or serpentine, with a live plan preview before anything writes.

Refrig Loads

Cold-storage box loads (transmission, door infiltration, product pull-down, and equipment heat), with the calculated tons flowing straight into the rest of the refrigeration suite.

System Sizer

Design refrigeration systems end to end: line sizing for ammonia, CO2, and A2L refrigerants, ASME B31.5 pressure design, P-h cycle analysis, transcritical CO2 boosters, and 8,760-hour energy modelling.

Safety Systems

Size the safety equipment a refrigeration system is required to carry: fire-case relief capacity, API 526 orifice selection, vent-line length, and machinery-room ventilation per ASHRAE 15 and IIAR 2.