AC Tune-Up in Kingfisher Oklahoma: My PMA Plan
What a real $229 AC tune-up in Kingfisher Oklahoma includes: 12-point check from a Master HVAC tech with 45 years on the truck. Book before the 90s hit.
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HVAC Tips & News from Kingfisher Oklahoma
I’m in Marquis Who’s Who. Here’s What That Means.
Marquis Who’s Who picked me for their 2026 edition. After 45 years in HVAC and 15+ years running my own shop in Kingfisher, here’s what it actually changes for the people I work for. Spoiler: not much, and that’s the point.
Geothermal, HVAC News
What Oklahoma Homeowners Actually Expect From Geothermal (And Where Reality Bites Back)
Master HVAC Dave Hartzell breaks down the April 2025 ACHR geothermal survey for Kingfisher Oklahoma homeowners. Cost, rebates, lifespan, install. Call 405-375-4822.
HVAC News
Window AC Not Cooling? What to Check First
Why is my window AC not cooling properly? A window AC that runs but does not cool is almost always
HVAC News
Heat Pump Airflow Problems in Oklahoma
Why does my heat pump have weak airflow? Weak heat pump airflow in Oklahoma almost always comes down to a
HVAC News
High-Efficiency Heat Pump vs Standard: Worth It?
Is a high-efficiency heat pump worth it over a standard unit in Oklahoma? For most central Oklahoma homes, yes. A
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What You Actually Pay When You Call an HVAC Contractor
What do you actually pay when you call an HVAC contractor in Oklahoma? When I come out, you pay a
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What Size HVAC System Does My Oklahoma Home Need?
What size HVAC system does my Oklahoma home need? Most Oklahoma homes need roughly 1 ton of cooling for every
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5 Factors of Home Ventilation in Oklahoma
What are the 5 factors of good home ventilation in Oklahoma? Good home ventilation in Oklahoma comes down to five
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Trane Replacement for Your Kingfisher Home
Expert HVAC tips from Hartzell’s Heat & Air in Kingfisher, Oklahoma. Practical heating, cooling, and home comfort advice since 1989.