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GOAL Investment Network · HVAC Specialist · Crystal Lake, IL

HVAC · McHenry County, IL

Load calcs, refrigerant, ductwork. Cold and hot covered.

Heating, cooling, and ventilation Specialist. Equipment, EPA compliance, and troubleshooting.

Ask FR3ON — Free View References →
HVAC Crystal Lake, IL 9-County Coverage Standards-Backed GOAL Investment Network

Areas of Expertise

What FR3ON Knows

Manual J, Manual D, Manual S. FR3ON runs the load before the answer. Refrigerant, airflow, combustion, ventilation, all covered.

✓Duct Design & Sizing (Manual D)
✓Heat Pump Systems
✓EPA Refrigerant Compliance
✓Load Calculations (Manual J)
✓Thermostat & Controls
✓IAQ & Ventilation (ASHRAE 62.2)

National Standards & Compliance

Rules FR3ON Follows

An HVAC answer without a load calculation is a guess. FR3ON doesn't guess. Every response includes the standard, the method, and the safety margin.

EPA Section 608
Mandatory certification for all refrigerant handling. Venting = federal offense.
OSHA 1910.147 LOTO
Lockout/Tagout required before servicing HVAC.
ASHRAE 62.1 / 62.2
Ventilation minimums — commercial and residential.
ACCA Manual J/S/D
Load calc, equipment selection, and duct design.

⛔ Lines FR3ON Will Never Cross

✕Never advise venting refrigerant — federal criminal offense
✕Always require EPA 608 cert for refrigerant work
✕Always flag LOTO before equipment service
✕No equipment sizing by rule of thumb — Manual J only

Local Jurisdiction

County Codes & Ordinances

Energy codes vary by county and climate zone. FR3ON tracks the IECC adoption, the permit requirements, and the inspection checkpoints across all nine jurisdictions.

📍 Primary Service Area McHenry County, IL
2021 IRC · 2021 IBC · 2020 NEC · 2021 IMC · 2021 IPC · 2021 IFC
📞 (815) 334-4560
🏠 Home Base City of Crystal Lake, IL
2021 IRC · 2021 IBC · 2021 NEC · 2021 IMC · IL Plumbing Code
📞 (815) 356-3605
Kane County, IL
2021 IRC · 2021 IBC · NEC 2020 · 2021 IMC · IL Plumbing Code
📞 (630) 232-5950
⚠️ 2024 ICC Codes Lake County, IL
2024 IRC · 2024 IBC · NEC 2023 · 2021 IMC · IL Plumbing Code
📞 (847) 377-2600
Cook County, IL
2021 IRC · 2021 IBC · NEC 2020 · 2021 IMC · IL Plumbing Code
📞 (312) 603-0500
DuPage County, IL
DuPage Code (Jan 2024) · 2021 IBC · 2021 IRC · NEC 2020 · IL Plumbing Code
📞 (630) 407-6700
DeKalb County, IL
2021 IRC · 2021 IBC · NEC 2020 · 2021 IMC · IL Plumbing Code
📞 (815) 895-7188
Boone County, IL
2021 IRC · 2021 IBC · NEC 2020 · 2021 IMC · IL Plumbing Code
📞 (815) 544-3103
🟡 Wisconsin — Different Code System Kenosha County, WI
WI UDC: SPS 320–325 · SPS 362 Electrical · SPS 382–387 Plumbing · SPS 323 HVAC
📞 (262) 857-1896
🟡 WI — Shoreland Rules Apply Walworth County, WI
WI UDC: SPS 320–325 · SPS 362 Electrical · SPS 382–387 Plumbing · SPS 323 HVAC
📞 (262) 741-4953

Official Reference Library

HVAC Sources

Every standard, code, and regulation FR3ON draws from — linked directly to the official source. Ask FR3ON a question, then verify the answer yourself.

Links open official government and standards body websites in a new tab. Always verify current requirements with your local authority having jurisdiction (AHJ) before starting any project.

📋EPA Section 608 — Refrigerant Certification↗ 📋OSHA 1910.147 — Lockout/Tagout↗ 📋ASHRAE 62.2 — Residential Ventilation↗ 📋ACCA Manual J — Load Calculations↗ 📋2021 IMC — International Mechanical Code↗ 📋McHenry County IMC 2021 Adoption↗ 📋Wisconsin SPS 323 — HVAC Code↗

Trade Resources

HVAC Downloads

Professional-grade PDFs for hvac work. Buy individually or get all with Pro subscription.

📄
HVAC Owner's Manual

Complete HVAC — furnace, AC, heat pump, thermostat, filter schedules.

$19.99DOWNLOAD
📄
HVAC System Care Guide

Seasonal maintenance, filter sizing, refrigerant basics, efficiency.

$14.99DOWNLOAD

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FR3ON
HVAC · GOAL Investment Network · Crystal Lake, IL
Online
FR3ON here. HVAC specialist — GOAL Investment Network. I pull from NEC, OSHA, IRC, and every county ordinance in our service area. Ask your question. I'll give you the answer and point you to the source. First 3 are free.
What are the hvac permit requirements in McHenry County?
Good question. I'll walk you through exactly what's required and link you to the official McHenry County permit portal so you can verify it yourself. What's your specific project?

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