by E-Calcs Plus, Inc. | Aug 15, 2026 | Commercial Energy Calculations, Duct Design, E-Calcs
When opening a new commercial space, renovating an existing building, or replacing an HVAC system, it’s tempting to rely on simple sizing estimates. Many people have heard rules such as “one ton of cooling for every 500 square feet” or similar...
by E-Calcs Plus, Inc. | Aug 1, 2026 | Duct Design, E-Calcs
Opening a new commercial space is exciting, but it can also be one of the most stressful phases of a project. Between permits, inspections, contractor schedules, and budget considerations, even a small issue can create costly delays. One of the most common causes of...
by E-Calcs Plus, Inc. | Jul 15, 2026 | Duct Design, E-Calcs, Manual J Load Calculation
If you’re planning to install a new HVAC system, replace existing equipment, build a new home, or complete a major renovation, you’ve probably heard the term “load calculation.” A load calculation helps determine how much heating and cooling...
by E-Calcs Plus, Inc. | Jul 1, 2026 | Commercial Energy Calculations, E-Calcs, Manual J Load Calculation, Residential Energy Calculations
If you’ve received a permit review comment requesting Manual J, S, and D calculations, you’re not alone. This is one of the most common HVAC-related corrections issued by Florida building departments during residential and commercial permit reviews. While...
by E-Calcs Plus, Inc. | Jun 15, 2026 | HERS Rating
TL;DR What it is: HERS and ERI are standardized scores that measure a home’s energy efficiency; a lower score indicates a more efficient, cost-effective, and comfortable home. The Process: Evaluation occurs in three phases: a pre-construction design review, a...
