Orders: 800-648-9523
Tech Support: 979-690-9420



Video Demos

Residential HVAC Introduction
(1 minute)

Residential HVAC Demo Including Bill of Materials
(10 minutes)

Rhvac is powered by
ACCA Manual J

Rhvac and Manual D Ductsize are
powered byACCA Manual D


Welcome to Elite Software
Engineering Design Software for Engineers, Architectsand Contractors

Elite Software is the world's premier software developer for HVAC, electrical, plumbing, and fire protection design software. Over 30 programs are offered for such applications as HVAC load calculations, building energy analysis, HVAC duct and pipe sizing, plumbing & lighting design, fault current calculations, voltage drops, fuse and breaker coordination, and much more. Our HVAC software sets the standard for excellence and ease-of-use in the industry.

Favorites from Each Category


Rhvac - Calculate Manual J heating and cooling loads for residential buildings, both block load and room-by-room.

Chvac - Calculate ASHRAE based heating and cooling loads for commercial buildings.

HVAC Tools - Perform 13 common HVAC design tasks.


Electrical Tools - Perform common electrical calculation and data look-up tasks.


Light - Design indoor lighting with zonal cavity calculations.

Fire Protection

Fire - Design and analyze fire sprinkler systems.


S-Pipe - Design and analyze domestic supply water piping systems.

Upcoming Events

» Check out our exhibit at the 2021 AHR Expo conference in Chicago, Jan. 25-27, 2021.

Latest News

» Chvac Basics video series is now available for viewing. [5/27/2020]

» New Elite Software YouTube Channel is officially open with Chvac videos. More videos on other software will be added soon. [5/27/2020]

» Drawing Board for Rhvac Version 2 is officially released and available for downloading. [1/13/2020]

» Rhvac video shows automatic room creation when you switch a project to Drawing Board mode.[6/18/2019]

» Rhvac can now import a REM/Rate or Ekotrope XML file.[5/28/2019]

» Rhvac and Rhvac Online now have lower discounted prices when you already have the other of the two programs.[12/20/2018]

» Rhvac Online video demo for using help is available for watching.[10/18/2018]

» Rhvac Online video demos for duct design are available for watching.[9/17/2018]

» Rhvac Online video demo for load calculation is available for watching.[8/24/2018]

» Elite Software is now a Preferred Partner with the Service Roundtable contractor organization.[6/7/2018]

» More...

Copyright © 2021 Elite Software Development, Inc., webmaster@elitesoft.com
2700 Arrington Road, College Station, TX 77845-4491
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