HVAC software, HVAC load calculation software, Heat Load Calculation - EDS

Easy, Fast, Accurate!

The easiest, fastest, and most accurate residential heat loss and heat gain block Load Calculator on the planet.

HVAC software can help you identify the best size, application, and type of HVAC system suitable for your home. Instead of conventional methods, you can use HVAC load calculation software to do the calculations quickly.

What you get with EDS

Not just another boring HVAC Software Company!

Business Future

Transform your HVAC Business

Let EDS simplify your workflow by leveraging our proprietary technology. Auditor and Load Calculator will give you time back to do what you do best, provide exceptional service to your customers.


Easy to use interface

We will display your calculations in a clear and easy to digest format. This is perfect for internal records, or as a customer facing sales tool.


Secure and reliable

Our fast servers never back down. With 99.96% uptime, EDS is ready to work for you.

24*7 Support

24/7 Support

Dedicated customer and technical support available anytime.


Bulk Discounts

Save money by signing up a bulk user or multi-use client account.



All software updates and upgrades are included for free with your subscription.

HVAC Auditor Software

Unique tools,
For your HVAC business!


HVAC Load Calculator

The easiest, fastest and most accurate residential heat loss/heat gain block load calculator on the planet.


HVAC Home Auditor

Advanced energy audit for progressive HVAC & Home Performance professionals designed to close more sales.


Lead Generation Tool

Educate your interested website visitors about the best product and service they can truly experience with you.

Your workflow, streamlined

With EDS you can spend less time staring at a spreadsheet and more time closing your sale.

Tutorial Videos

Click each video below to learn more

How to Login

How to login to our hvac load calculator

Program Navigation

Program Navigation

Data Entry

Data Entry

Manage your Subscriptions

Manage your Subscriptions

Program Parameters

Program Parameters

Our Referral Program

Our Referral Program

Market leaders use EDS software solutions to enrich their brand & business.