Hartzell's Heat Air

🌟 Welcome to Dave Hartzell’s Heat & Air LLC—Central Oklahoma's HVAC Experts!

Serving Kingfisher, Blaine, Major, Canadian, Garfield & Logan counties, we're your trusted source for HVAC installation, repair, and maintenance. No matter the brand, we ensure your heating, cooling, and refrigeration systems operate perfectly year-round. Need help fast? We offer free estimates on repairs, replacements, or installations.

📞 (405) 375-4822
🌐 hartzellsheatair.com

Quality goes in before the sticker goes on!

The Constitution is broken and working perfectly at the same time.
The Constitution is broken and working perfectly at the same time.
The Declaration of Independence: Promise, Paradox, and Evolution
The Declaration of Independence: Promise, Paradox, and Evolution
Little Ball Practice on a Beautiful Day
Little Ball Practice on a Beautiful Day
Calculating Heat Load: Why Getting It Right Saves Thousands
Calculating Heat Load: Why Getting It Right Saves Thousands
Ancient Wisdom Meets Modern Innovation: How Adobe and Geothermal Create the Perfect Home
Ancient Wisdom Meets Modern Innovation: How Adobe and Geothermal Create the Perfect Home
The Greenest Building Is One That's Already Built! How Historic Architecture Holds the Climate Se...
The Greenest Building Is One That's Already Built! How Historic Architecture Holds the Climate Se...
Koi Fish Eating, while cleaning the system.
Koi Fish Eating, while cleaning the system.
A Day in the Life of Our Koi Pond
A Day in the Life of Our Koi Pond
"Hartzell’s Heat & Air is Google Guaranteed — trusted, reviewed, and verified! Book now and get 1...
$25 Off and Peace of Mind: The Hartzell's HVAC Story
$25 Off and Peace of Mind: The Hartzell's HVAC Story
$500 OFF a full HVAC system replacement OR receive a FREE Germicidal UV Light
$500 OFF a full HVAC system replacement OR receive a FREE Germicidal UV Light
HVAC Heroes 🛠️ $50 OFF any repair of $250 or more
HVAC Heroes 🛠️ $50 OFF any repair of $250 or more
The Gratitude Advantage
The Gratitude Advantage
What Makes an HVAC Business Best in Town: Lessons from Hartzell's
What Makes an HVAC Business Best in Town: Lessons from Hartzell's
HVAC Maintenance: The Silent Guardian of Home Comfort
HVAC Maintenance: The Silent Guardian of Home Comfort
Your building's lungs are costing you more than you think
Your building's lungs are costing you more than you think
The Blue Sticker Revolution: How Energy Star Saved Americans $500 Billion
The Blue Sticker Revolution: How Energy Star Saved Americans $500 Billion
AC Checkup: Beat the Heat Before It Beats You
AC Checkup: Beat the Heat Before It Beats You
The Essential Summer AC Prep Guide: Preventing Breakdowns and Saving Money
The Essential Summer AC Prep Guide: Preventing Breakdowns and Saving Money
The Reme Halo System: Nature's Air Purification Inside Your Home
The Reme Halo System: Nature's Air Purification Inside Your Home
The Intelligent Home: How AI Is Revolutionizing Heating and Cooling
The Intelligent Home: How AI Is Revolutionizing Heating and Cooling
Your House Knows You're Coming Home
Your House Knows You're Coming Home
Mining Customer Gold: How One HVAC Company Translates Feedback into Compelling Content
Mining Customer Gold: How One HVAC Company Translates Feedback into Compelling Content
Earth's Hidden Battery
Earth's Hidden Battery
Preventative Maintenance: Why Your HVAC System Needs Regular Checkups
Preventative Maintenance: Why Your HVAC System Needs Regular Checkups
The Complete Homeowner's Guide to HVAC Maintenance
The Complete Homeowner's Guide to HVAC Maintenance
Your Home Is Making You Sick Without You Even Knowing It
Your Home Is Making You Sick Without You Even Knowing It
Unmasking the $49 Air Conditioning Tune-Up: What They Don't Tell You
Unmasking the $49 Air Conditioning Tune-Up: What They Don't Tell You
Geothermal Revolution: Cutting Energy Costs While Staying Perfectly Comfortable
Geothermal Revolution: Cutting Energy Costs While Staying Perfectly Comfortable
Underground Advantage: The Economics and Benefits of Residential Geothermal HVAC
Underground Advantage: The Economics and Benefits of Residential Geothermal HVAC