HVAC Load Calculator

Professional Load Calculation Software

Drive sales with more-efficient HVAC service software.

The world's leading all-in-one software for commercial and residential HVAC businesses.

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Benefits of getting an Calculation Software

Equipment cost
You’ll pay more for higher-capacity equipment, so by sizing your equipment correctly by performing a load calculation you can save on the up-front cost
Health and comfort
When your equipment is too large for your home it will cause it to short cycle, which can cause temperature and humidity control problems that adversely affect comfort and lead to health issues like mold growth
Operating costs
HVAC equipment that is properly sized heats and cools your living space more efficiently, so you avoid unnecessary energy waste that inflates your operating costs
Equipment longevity
Short cycling is not only inefficient, it also puts wear and strain on your HVAC components that can shorten their expected lifespan
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EDS Home Performance Software

Energy Design Systems (EDS), an industry leader in providing and implementing HVAC engineering and sales systems; and ground-breaking marketing programs for over 20 years. In addition to its customary initiatives, EDS is currently working with manufacturers, distributors, utilities, associations and contractors developing and implementing new programs, which leverage opportunities created by the changing utility and energy industries in North America.

  • Technical support
  • Partnered services
  • Works on all devices
  • CI/CD for latest updates

PRODUCTS

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HVAC LOAD CALCULATOR

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

$150 Year

The Load Calculator is $150/year or $15/month per user. Your user license will automatically renew annually unless cancelled.

Free Trial
14 day free trial
99.9% uptime
Our fast servers never back down
24/7 Support
Dedicated experienced support
Tutorials
In app and video tutorials available
Money back
30 days money back guarantee
Discounts
Big discounts for bulk users and multi-use clients
Updates
All updates included
Innovation
Latest technologies and tools
84,172,731
+
LOAD CALCULATIONS GENERATED
1,893,652
+
HOME AUDITS
21,768
+
LIFETIME USERS