Our Work Map: 3,321 Real HVAC Jobs Across Central OK
I mapped 3,321 real Hartzell’s jobs and 1,894 customer locations across Central Oklahoma. Filter by ZIP, see photos and reviews. Call 405-375-4822.
HVAC News
HVAC News
Oklahoma HVAC industry news, utility rebates, equipment updates, and energy insights from Dave Hartzell of Hartzells Heat & Air.
HVAC News
5 Signs Your Oklahoma AC Is About to Die Memorial Day
Memorial Day weekend pushes Oklahoma ACs into their first 90 degree stretch, and weak systems fail in the first 72 hours. Here are the 5 signs I watch for every spring after 45 years of HVAC work in Kingfisher.
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
When a window AC system stops cooling right, most people assume it requires refrigerant. In my experience, that is rarely
HVAC News
Heat Pump Airflow Problems in Oklahoma
Last week I got called out to look at a Lennox heat pump that was running constantly but not keeping
HVAC News
High-Efficiency Heat Pump vs Standard: Worth It?
Every spring I get calls from homeowners who are about to replace their heat pump and want to know: is