Load Calculations
Heat Pump vs Straight Cool AC in Florida: Which Is Better?
Quick disclaimer: This article is for general informational purposes only and is not a substitute for professional advice. Equipment costs, incentive programs, and code requirements change over time, and every home has a different load. Always confirm system selection and sizing with a licensed HVAC professional and a project-specific load calculation. ProCalcs LLC assumes no…
Read MoreHVAC for New Construction: Get the Spec Right Before the Build
The heating and cooling system is one of the few decisions in a new home that is expensive to fix once the drywall goes up. Crews bury the ducts in the walls, size and order the equipment, and fix the thermostat location. Getting HVAC for new construction right is a design-phase decision, not an install-day…
Read MoreCommercial HVAC Case Study: A Tenant Fit-Out Project
The job most commercial tenants don’t see coming A pet grooming spa signs a lease on a 1,716 square foot retail space in Utah, a typical commercial tenant fit-out HVAC project. The shell is built. The landlord is providing a packaged rooftop unit. The build-out drawings are nearly complete. Permit submission is days away. Then…
Read MoreResidential Renovation HVAC Design: What to Know First
Residential renovation season brings a familiar rhythm: blueprints on the table, contractors lining up trades, homeowners picking finishes. What often gets scheduled last — sometimes not at all — is HVAC design. That is a problem. And it tends to show up right after drywall goes up. Kitchen remodels, additions, garage conversions, window replacements, insulation…
Read MoreCommercial HVAC Case Study: Fixing an Installed System Without Redesign
Based on a real commercial project HVAC systems are sometimes installed before final design calculations are completed. When that happens, projects can face permit issues, delays, or costly redesigns. This is a common issue in commercial HVAC projects where installation moves ahead of finalized design. In this case study, we walk through how we…
Read MoreManual J Permit Requirements Explained
When planning a new HVAC installation or system replacement, questions about Manual J permit requirements often come up. Contractors want to know what documentation is needed for approval. Homeowners want to know whether a load calculation is necessary. Builders want paperwork that won’t delay inspections. Below are the most common Manual J questions we hear…
Read MoreOversized HVAC System? 3 Red Flags You Shouldn’t Ignore
Bottom line: Over 60% of residential HVAC systems are incorrectly sized according to DOE data, with studies showing 70-90% have installation faults that compromise performance. Oversizing wastes 20-30% more energy, cuts equipment lifespan in half, and leaves homes humid and uncomfortable—especially in climates like Florida. 3 Signs of an Oversized HVAC System Red Flag #1:…
Read MoreWhy Your HVAC Contractor’s Load Calc Might Be Wrong
When builders and contractors search for an “HVAC load calculation near me“, what they really want is peace of mind. A perfectly sized system. Code-compliant designs. Fewer callbacks. But too often, the load calculations they receive are way off base. It is not always because someone meant to cut corners. Sometimes it comes down to…
Read More7 HVAC Tips For Troubleshooting Common Issues
A large number of HVAC issues trace back to simple problems that can be caught early with basic checks. These small steps help people avoid stress and cut down on unnecessary service calls. Having a clear grasp of HVAC rules of thumb also helps identify early trouble and keeps minor issues from turning into major…
Read MoreStep-By-Step Guide To HVAC Static Pressure Calculation
Thorough knowledge of HVAC static pressure is needed for anyone involved in the design, installation, or maintenance of heating and cooling systems. Static pressure determines how efficiently air moves through ductwork and how well the equipment performs under real-world conditions. When the balance is right, the system operates quietly, maintains consistent comfort, and saves energy.…
Read More
