Design, Engineering & Technical Software for HVAC & Plumbing

LiDAR-powered HVAC design and sales on a single tablet

LiDAR-powered HVAC design and sales platform that turns an iPad Pro scan into a 3D model, room-by-room Manual J load calculations, and a visual proposal in one in-home visit.

3D HVAC design and duct modeling without CAD skills

Affordable 3D HVAC design tool that lets contractors model homes, calculate Manual J loads, and visually design duct systems without any CAD experience.

Web-based, ACCA-approved Manual J at a fraction of the cost

Web-based, ACCA-approved Manual J, S, and D load calculation software built for affordability and simplicity, with a free tier for homeowners and DIYers.

AI Manual J in 60 seconds for residential HVAC

AutoHVAC is an AI-powered cloud Manual J load calculator that analyzes residential blueprints and produces ACCA-compliant HVAC load reports in about 60 seconds. It is positioned as a low-cost, contractor-friendly alternative to Wrightsoft for residential HVAC design.

HVAC ductwork and mechanical estimating with SMACNA-based takeoffs

QuoteSoft (part of ConstructConnect) is an HVAC and mechanical estimating and takeoff platform used by sheet metal, HVAC, plumbing, and piping contractors. QuoteSoft Duct incorporates SMACNA specifications to calculate labor hours and material costs for rectangular, round, and oval ductwork and accessories.

Revit-based MEP detailing with real manufacturer HVAC content

Trimble SysQue is a Revit-based MEP detailing platform that lets designers and contractors build LOD 300/400 models natively in Autodesk Revit using manufacturer-specific, real-world content. It is widely used by commercial mechanical and sheet metal contractors for fabrication-ready HVAC, piping, plumbing, and electrical models.

Industry-standard BIM and CAD for commercial HVAC/MEP design

Autodesk Revit MEP and AutoCAD MEP are the industry-standard BIM and CAD platforms for mechanical/HVAC design, drafting, and coordination on commercial projects. Revit MEP powers intelligent 3D BIM models of ductwork, piping, and equipment, while AutoCAD MEP provides a 2D-centric industry toolset with 10,500+ parametric MEP objects.

The industry standard for HVAC load calculation and duct design

Industry-standard HVAC design software suite offering integrated Manual J load calculations, Manual D duct design, and Manual S equipment selection for residential and commercial contractors.

The easy way to Manual J for residential HVAC contractors

HVAC-Calc by HVAC Computer Systems is a contractor-friendly ACCA Manual J heat loss and heat gain load calculation software for residential and commercial work. It is widely used by small HVAC contractors, homeowners, and home inspectors for defensible furnace, air conditioner, and duct sizing.

University-backed Manual J/S/D and residential energy modeling engine for HVAC design

EnergyGauge USA is a residential energy simulation and load-calculation platform developed by the Florida Solar Energy Center (FSEC) at the University of Central Florida. It powers ACCA Manual J 8th Edition load calculations, Manual S equipment selection, and Manual D duct sizing for HVAC contractors, raters, and builders.

Commercial HVAC load calculation and hour-by-hour energy modeling from Carrier

Carrier's Hourly Analysis Program (HAP) is a commercial HVAC load-calculation, system-sizing, and hour-by-hour energy modeling tool used by consulting engineers, design/build contractors, and facility engineers. HAP v6 is the latest major release and drives mechanical equipment sizing and LEED-accepted energy analysis on commercial projects.

HVAC and MEP engineering software since 1979

Veteran HVAC and MEP engineering software company offering Rhvac for ACCA Manual J, D, and S calculations plus a broad suite of mechanical, electrical, and plumbing design tools.