ECCTools
Title 24 · 2025 Energy Code
ECCTools
Energy Code Compliance · Field Toolkit

Compliance tools built for the field

Fast lookups and verification tools for California Title 6 Energy Code work — CF1R scanning, QII, ventilation, and range hoods. Each tool runs right in your phone's browser. Nothing to install.

2019 Energy Code 2022 Energy Code 2025 Energy Code · ECC Program

Title 24 · Part 6

The toolkit

SHEET T24-1Live
CF1R Scanner

Drop in a CF1R-PRF-01 and pull the field-verified measures, envelope values, and HVAC specs — then print a clean one-page field summary. Runs entirely in your browser.

CF1R-PRF-01 · in-browser scan · 1-page summary
Open scanner
SHEET T24-2Beta
QII Field Checklist

Quality Insulation Installation verification per RA3.5 — 109 tri-state checkpoints across all stages, handbook reference photos, and a save-and-resume PDF inspection report.

RA3.5 · CHEERS registry · 109 checks
Open checklist
SHEET T24-3Live
Range Hood Checker

Search ~2,200 AHAM/HVI-listed kitchen range hoods and verify sone & CFM compliance, kitchen-volume requirements, and makeup-air thresholds.

Table 150.0-G · ≤3 sones · makeup-air flag
Open checker
SHEET T24-4Live
ERV / WHF Checker

Check ERV/HRV and whole-house fans against the code across 4,100+ certified products — SRE, ASRE, CFM, fan efficacy, FID status, and attic-ventilation sizing.

§150.0(o) · §150.1(c)13 · FID / SRE / ASRE
Open checker
SHEET T24-5Live
Cool Roof Finder

Search 3,190+ CRRC-rated roofing products and test any one against the 2025 cool roof requirements — aged solar reflectance, thermal emittance, and SRI by building type, slope, and climate zone.

CRRC directory · §140.3 / §150.1(c)11 · aged SR / TE / SRI
Open finder
SHEET T24-6Live
Code Reference

Look up any HERS/ECC field test and get the governing Reference Appendix protocol, Standards section, manual chapter, forms, and climate zones — plus the full document library, the JA/RA/NA appendices, ASHRAE sources, and the 2025 changes that bite raters.

RA3 field verification · Reference Appendices · ASHRAE · 2025 changes
Open reference
SHEET T24-7Live
Cookie Cutter Tool

Verify installed density of loose-fill insulation — pick your sample-square size, the product on the bag, and the rated R-value to get the minimum cut-sample weight in grams for the QII cookie-cutter test.

QII density · minimum sample weight (g) · loose-fill
Open tool
SHEET T24-8Live
Return Duct Sizer

Size return ducts and filter grilles to the prescriptive tables and skip the diagnostic airflow & fan-watt test — pick the tonnage, single or two returns, confirm the layout gates, and read off your required diameters and grille area.

§150.0(m)13 · Tables 150.0-B / 150.0-C · single + two return
Open sizer

Scanned this page from a plan set? Every tool runs in your phone's browser — nothing to install.

Prepared by

Prepared by
Ben Long · Certified HERS/ECC Rater
Sheet
INDEX — ECCTOOLS.ORG