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Calculates monthly and annual heating and cooling costs for residential and light commercial buildings. Virtually any type of cooling and heating system can be simulated by AUDIT including standard DX, evaporative, air source heat pumps, water source heat pumps, and all types of fossil fueled furnaces and boilers (both modulating and on/off controlled). An optional version of AUDIT with appliance capabilities can calculate appliance and hot water energy use as well. AUDIT uses monthly bin weather data and full load cooling hours in its calculations. Weather data for hundreds of cities throughout the world are built-in to AUDIT and additional weather data can be easily added. Along with calculating energy costs, AUDIT also performs an economic analysis that allows you to compare system types and costs over any given study period. There is even a loan and lease analysis report designed to demonstrate affordability of better systems by showing that the effective net monthly cost is often very low when monthly energy savings are considered. To make system comparisons easy, AUDIT allows you to manually enter equipment data or automatically look it up for you from ARI and GAMA equipment data files. AUDIT provides a wide selection of nicely formatted color charts, graphs, and reports. AUDIT shares data with Elite's RHVAC, CHVAC, and Quick Quote programs. Screen Shots


operating cost, bin data, residential, commercial



Expertise Required

Knowledge of various types of hvac equipment is helpful.


5000 worldwide


HVAC Contractors and Engineers


Two types of data are requested: general project data and specific HVAC system data. The general project data includes the summer and winter design conditions, total cooling hours, the project name and location, client information, fuel cost data, optional appliance data, and the design heating and cooling loads. The HVAC system data includes specific information on the system type, model number, efficiency, cost, capacity, and fuel used. Economic data concerning initial system cost, interest and inflation rates, and loan amounts can also be entered. AUDIT can also import data from project data files created by the Elite's RHVAC and CHVAC load calculation programs.


The AUDIT program provides numerous color presentation quality reports including a title page, project summary, system comparisons, appliance analysis, hot water heating, investment, loan, and lease analysis, line graphs, pie charts, and bar graphs. The reports can be previewed on screen or printed on any printer supported by Windows.

Computer Platform

Windows 9x, NT 4.0, 2000, XP, Pentium class processor, 16MB of RAM, 50MB of hard disk space

Programming Language

Visual Basic


Minimal input data required for obtaining hvac operating costs. Great sales tool for showing the benefits of using high efficiency equipment.


The simple and easy to use monthly bin method of calculation does not allow the simulation sophistication provided by hourly energy analysis methods.



Elite Software


P O Drawer 1194
Bryan, Texas 77806
United States


+1 (800) 648-9523 orders +1 (979) 846-2340 support


+1 (979) 846-4367




Contact Elite Software, or visit web site for more information. Cost starts at $495. Free evaluation version available for download from web site.