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

Benefits of getting an Calculation Software
Equipment cost
Health and comfort
Operating costs
Equipment longevity
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
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.