HVAC Basics – Your Guide to Heating, Cooling, and Home Comfort Systems

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Freedom HVAC Supply graphic showing HVAC zoning system and multi-zone mini-split comfort.
October 25, 2025
Zoning Systems & Multi-Zone Comfort
Stop fighting over the thermostat! Learn how zoning systems and multi-zone HVAC setups keep every room in your home perfectly comfortable and energy-efficient.
Freedom HVAC Supply graphic showing HVAC maintenance checklist for seasonal tune-ups.
September 25, 2025
Seasonal HVAC Maintenance Checklist
Maximize comfort and efficiency year-round with this simple HVAC maintenance checklist. Prevent breakdowns and extend your system’s lifespan.
Freedom HVAC Supply graphic showing HVAC repair and troubleshooting icons
September 11, 2025
Common HVAC Problems & Fixes
From weak airflow to strange noises, most HVAC issues have simple explanations. Here’s how to diagnose and fix the most common heating and cooling problems.
Freedom HVAC Supply graphic showing smart thermostat and Wi-Fi HVAC controls.
August 14, 2025
Thermostats & Smart Controls Explained
Smart thermostats don’t just control temperature — they learn your habits to save energy and improve comfort. Here’s how they work and what to look for.
Freedom HVAC Supply graphic showing HVAC filters and indoor air quality airflow concept.
July 31, 2025
Indoor Air Quality & Filters Guide
Clean air isn’t optional — it’s essential. Learn how HVAC filters, ventilation, and humidity control improve indoor air quality and comfort.
Freedom HVAC Supply graphic showing HVAC load calculation concept and BTU measurement.
July 17, 2025
Manual J & Load Calculations for Beginners
HVAC sizing isn’t guesswork — it’s science. Learn how Manual J calculations help determine the perfect system size for comfort, efficiency, and savings.
Freedom HVAC Supply graphic showing airflow and ductwork diagram for HVAC systems.
July 03, 2025
Ductwork & Airflow 101
Airflow is the lifeblood of any HVAC system. Learn how ducts, vents, and fans work together — and what causes poor airflow in your home.
Freedom HVAC Supply graphic showing R-410A, R-32, and R-454B refrigerant comparison.
June 28, 2025
Understanding Refrigerants & EPA Rules
R-410A is being phased out — and new A2L refrigerants are here. Learn what’s changing, why it matters, and what it means for your next HVAC system.
Freedom HVAC Supply graphic showing SEER2, HSPF2, and EER2 HVAC efficiency ratings
May 29, 2025
SEER2, HSPF2 & EER2 Explained
The new SEER2, HSPF2, and EER2 ratings help you compare HVAC efficiency under real-world conditions. Here’s what they mean and why they matter.
Freedom HVAC Supply graphic with airflow house icon and title ‘What Is HVAC?
May 01, 2025
What Is HVAC & How It Works
What Is HVAC & How It Works HVAC stands for Heating, Ventilation, and Air Conditioning — the system that keeps your indoor air comfortable, healthy, and...