BLOGS

BY PSYCHRO.PRO

October 13, 2026

Why Your Manual J Gets Rejected: 6 Fixes | Psychro.pro

Combustion Air Requirements for Gas Furnaces and Water Heaters

What Plan Reviewers Look For: A Field Guide Across Manual J, REScheck, and COMcheck

IECC Compliance Requirements for Residential Energy Permits

How Long Does a Manual J, REScheck, or COMcheck Report Take? A Contractor's Timeline Guide

ASHRAE 90.1 vs. IECC for Commercial Energy Compliance

Mixed-Use Energy Compliance: REScheck, COMcheck, or Both?

Permit-Ready Energy Reports to Avoid Resubmittals

Heat Pump Sizing and Selection for Title 24 and Cold-Climate Compliance

Title 24 Compliance for Additions, Remodels, and Alterations

Washington State Energy Code Submittals for Contractors

WSEC Residential Compliance Documentation Checklist

Title 24 HERS Verification Requirements for California Projects

California Title 24 Documentation for Permit Submittals

HVAC and Energy Report Plan Review Checklist"

Duct Leakage Testing, HVAC Sizing, and Energy Code Compliance

COMcheck Requirements for Small Commercial Buildings

HVAC Design Reports and Energy Compliance Reports Explained

Fast Manual J, REScheck, and COMcheck Reports for Contractors

Florida R405 Duct Leakage Testing for Final Inspection

Florida R405 Performance Method for Custom Homes

COMcheck Compliance Report Checklist for Commercial Projects

COMcheck for Tenant Improvements and Commercial Buildouts

Common COMcheck Mistakes That Delay Permit Approval

Florida R405 Permit Documentation Checklist for Contractors

Florida Residential Energy Code Forms for New Construction

COMcheck Lighting Compliance and Lighting Power Density

COMcheck Report Requirements for Commercial Energy Permits

Room-by-Room HVAC Load Calculations for Residential Design

HVAC Permit Documentation Checklist for Contractors

Oversized HVAC Systems: Comfort, Humidity, and Sizing Problems

Manual S Equipment Selection for Proper HVAC Sizing

Manual D Duct Design for Room-by-Room Airflow

Manual J Report Requirements for Mechanical Permits

Manual J, Manual S, and Manual D HVAC Design Reports Explained

Manual J Load Calculation for HVAC Permit Submittals

Energy Compliance for Home Additions

REScheck, Insulation, Windows, and Climate Zones: How They Fit Together

REScheck for Additions and Renovations

Common REScheck Compliance Mistakes

Preparing for a REScheck Report

What Is COMcheck?

What Is REScheck?

Florida Energy Code R405: Performance Method Compliance Explained

California Title 24 Part 6: What Contractors Need to Know

Washington State Energy Code (WSEC): A Compliance Overview

COMcheck vs. REScheck: Which Compliance Path Do You Need?

How Manual J/S/D and Energy Code Compliance Tools Work Together

Florida R405 Performance vs. Prescriptive Compliance: Which Is Right for Your Project?

California Title 24 and HERS Verification: What Gets Checked

Washington WSEC vs. the Base IECC: Key State Amendments Explained