About Energydesignsystems
EDS is the easiest, fastest, and most accurate residential heat loss and heat gain block Load Calculator on the planet.
Founded in 2001, 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. EDS serves manufacturers, distributors, and contractors associated with the HVAC industry in North America. EDS allows service contractors to operate their business from anywhere. With the help of Load Calculator and Home Auditor, the company has revolutionized the way of carrying out HACK system calculations.
The fastest load calculator available. Heating systems sized in accordance with ACCA Manual J 8th edition Heat Loss Load Calculation formulas. This intuitive sales tool can be mastered in minutes and help differentiate you from your competition when utilized appropriately as part of an integrated Buyer Guidance (Sales) Process. This is a critical step in the Buyer Guidance Process that over 80% of all salespeople fail to do. This simple step will help you legally and ethically discredit contractors that size systems based on existing equipment, square footage or unreliable and inaccurate rules of thumb. The process can be performed remotely to estimate the load and then trued-up once in the home.
Show your customer exactly how and where they can save money by using your services. EDS Auditor is the quickest, most contractor and consumer friendly, supremely accurate heat loss/heat gain load calculation and home performance modeling software on the planet! All the calculations are based on industry standards from ACCA, AHRI, and the DOE. It is one of the only software programs that allows a user to calibrate and true up energy calculations to the customer’s actual utility bills.
Know more https://www.eds.tech
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
New guidance for professional practice, cultural change and regulation in social housing.
The heritage of nuclear and conventional power stations.
New measures to stop people being ripped off
Government to protect families from cowboy builders and aggressive bailiffs.
New Futurebuild showcase brings an innovation-first approach.
National Planning Policy Framework
Understanding the 2026 changes.
ECA's public affairs priorities
Member consultation opens to shape priorities for 2027 to 2030.
Dutyholder responsibilities from 1 July 2026.
Where performance meets practice
The Building Envelope Stage at UKCW Birmingham.
CIAT publishes briefing on planning reforms.
Leaders in Learning for Practice Network
Call for conservation leaders in learning to register interest in new network.
The importance of early engagement
Construction lessons from the Trillium HealthWorks Experience Centre.
Mayors are to be given planning call in powers
Mayors across England will be able to make the most important planning decisions.

















