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This section provides an overview for heat load calculation software as well as their applications and principles. Also, please take a look at the list of 6 heat load calculation software manufacturers and their company rankings. Here are the top-ranked heat load calculation software companies as of July, 2025: 1.SERVICETITAN, INC., 2.Avenir Software Inc, 3.Elite Software Development, Inc.,.
Table of Contents
Heat load calculation software is used to compute the inflow and outflow of thermal energy in a building or facility.
It determines the heating and cooling loads necessary to maintain desired temperatures, considering factors such as building structure, materials, occupancy, equipment heat output, outdoor air temperature, and solar radiation. This software helps derive precise heating and cooling capacity requirements and optimizes energy consumption, making it an essential tool for architects and engineers.
Unlike traditional manual calculations, heat load calculation software processes complex equations quickly, streamlining the design process and improving accuracy. By basing HVAC equipment selection on calculated heating and cooling needs, it minimizes energy waste and reduces operational costs.
Heat load calculation software is primarily used to optimize air conditioning systems for buildings and facilities. Below are some key applications:
In new construction, heat load calculations are crucial for designing HVAC systems that match the building's size and intended use. This ensures energy-efficient operation while maintaining a comfortable indoor environment. Climate-specific calculations consider external temperature and humidity, enabling tailored designs for different regions.
Heat load calculations are often performed during retrofitting or renovating existing buildings to evaluate and optimize HVAC performance. Changes such as upgraded insulation, improved windows, or new HVAC equipment necessitate recalculations to ensure efficient energy usage. Factors like insulation performance, window layout, and solar radiation are incorporated into the calculations for optimal design.
Heat load calculation software is instrumental in meeting energy conservation regulations and environmental standards. It aids in designing HVAC systems that improve energy efficiency, reduce operating costs, and ensure compliance with legal requirements. These systems maintain comfortable indoor temperature and humidity while promoting sustainable energy use.
*Including some distributors, etc.
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Ranking as of July 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | SERVICETITAN, INC. |
20.0%
|
| 2 | Avenir Software Inc |
20.0%
|
| 3 | Elite Software Development, Inc., |
16.7%
|
| 4 | Energy Design Systems, LLC |
16.7%
|
| 5 | IES |
13.3%
|
| 6 | E.I.Engineering Co.,Ltd |
13.3%
|
Derivation Method
The ranking is calculated based on the click share within the heat load calculation software page as of July 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
1 | 100.0% |
3 products found
3 products
E.I.Engineering Co.,Ltd
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Last viewed: 55 minutes ago
■Enepro21Multi Multi-air conditioner simulation for buildings We have developed software that can accurately simulate the energy consumption, syste...
E.I.Engineering Co.,Ltd
30+ people viewing
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■Estel21 Power and Heat Load Creation Program To calculate the exact energy load consumed by a building, there are BestProgram, Esumprogram, and th...
E.I.Engineering Co.,Ltd
40+ people viewing
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A groundbreaking forecasting engine that accurately predicts the load of electricity and thermal energy (cooling, heating, steam, hot water) using ...
