Oklahoma HVAC industry news, utility rebates, equipment updates, and energy insights from Dave Hartzell of Hartzells Heat & Air.
Master HVAC Dave Hartzell breaks down the April 2025 ACHR geothermal survey for Kingfisher Oklahoma homeowners. Cost, rebates, lifespan, install. Call 405-375-4822.
When a window AC unit stops cooling right, most people assume it needs refrigerant. In my experience, that is rarely
Last week I got called out to look at a Lennox heat pump that was running constantly but not keeping
Every spring I get calls from homeowners who are about to replace their heat pump and want to know: is