The Human Diagnostic

Dave Hartzell's Heat & Air - Kingfisher,OK
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Looking for honest stories about people, not product reviews? You're in the right place.The Human Diagnostic isn't a how-to HVAC podcast. It's what a 45-year Master Technician notices about people after 90,000 service calls across gas plants, oil rigs, hospital preservation systems, high-rises, feedlots, walk-in freezers, and residential homes all over Central Oklahoma.Hosted by Dave Hartzell, each episode tells a real story from a real service call. Sometimes he's driving to the job and predicting what he's about to walk into. Sometimes he just left and he's still working through what he saw. Either way, the story turns out to be about more than HVAC.Topics you'll hear across the season:✅ The customer nobody wanted to take, and what changed when someone finally did✅ Why the person researching their broken AC at midnight isn't being difficult, they're scared✅ What 45 years of walk-ins, weddings, funerals, and broken water heaters teaches you about anxiety✅ The tech who can fix anything but can't explain it, and why the customer doesn't trust him✅ The review you can't place, the moment you never forget, the call that changed how you work✅ What gets lost when we treat people like tickets, and what gets found when we don'tWhether you fix things for a living, manage people who do, or just like good stories from someone who has been everywhere and met everybody, The Human Diagnostic gives you the part of the job that never shows up in an invoice.📍 Proudly based in Kingfisher and serving Edmond, Guthrie, Yukon, Mustang, Piedmont, Logan County, Canadian County, Blaine County, Major County, Garfield County, and the greater Oklahoma City metro area. Hartzell's Heat & Air blends old-school integrity with cutting-edge technology, from digital diagnostics to smart-home HVAC integrations.Connect with Hartzell's Heat & Air:📲 Facebook: facebook.com/hartzellsheatair🐦 X (Twitter): x.com/HartzellsHVAC▶️ YouTube: youtube.com/@hartzellsheatair6003💼 LinkedIn: linkedin.com/in/dave-hartzell-7a687515📧 Contact Us: office@hartzellsheatair.comEvery call is a story. Every story is a person.🔔 Subscribe to The Human Diagnostic and ride along.📞 Need HVAC help in Central Oklahoma? Call (405) 375-4822🌐 hartzellsheatair.com

  1. 3h ago

    The Repair He Planned for a Version of Himself That Never Came

    He opened the door with his arms already crossed, and I hadn't said a word yet. It was the second week of August, one of those afternoons where the heat comes up off the driveway and hits you in the face. A brick ranch house on the edge of town, built sometime in the seventies, with a carport and an old window unit still hanging in the back bedroom from some summer long ago. The man who called was in his seventies, retired, living alone since his wife passed. His central air had quit cooling the night before. The blower inside ran, but the outdoor unit just hummed and sat there. I want to be clear that this man is a composite. I've been in this trade 47 years, and I've met him a few hundred times, in a few hundred different houses. He's not one customer. He's a pattern. Before I could get my clipboard out, he told me three things. He said the unit was only fourteen years old and he wasn't buying a new one. He said he didn't want any maintenance plan. And he said if it was going to be more than a certain number, he'd go buy a window unit at the store and be done with it. I hadn't looked at anything yet. I hadn't even walked around the house. So I went out to the condenser. The compressor was trying, and the fan motor wasn't turning. I checked the run capacitor, and it was swollen on top and reading way under its rating. A part that fits in the palm of your hand. I replaced it, the fan spun up, the compressor settled in, and within a few minutes cold air was coming out of the registers. I checked the rest of the system while I was there, and it was in decent shape for its age. When I came back in and told him, he didn't look relieved. He looked suspicious. He asked me twice if I was sure that was all of it. Then he told me again he didn't want a plan, even though I hadn't brought one up. Core line: "It reaches for every contractor story he's ever heard: the neighbor who got talked into a whole new system, the TV ad, the last time a repairman made him feel stupid." Give Us A Shout Thanks for tuning in to Hartzell's Heat & Air, HVAC in Kingfisher and central Oklahoma. From Kingfisher to coast-to-coast consulting, we design, install, and maintain smart, efficient systems that deliver year-round comfort. We're family-run and powered by 47 years of experience. Whether it's AI-powered thermostats, geothermal systems, or classic tune-ups, we deliver upfront pricing, expert care, and warranties that back it all up. 🛠️ Book Online: https://book.housecallpro.com/book/Hartzells-Heat--Air/4a569038b3dc460daf2d5f6497b18351?v2=true 🌐 www.hartzellsheatair.com 📞 (405) 375-4822 🚛 Trane Comfort Specialist • Mitsubishi Diamond Dealer • ClimateMaster Elite 🛡️ VIP Comfort Club • Remote Monitoring • Extended Warranties 📲 Follow us for tips, updates, and real-world installs: YouTube: @hartzellsheatair6003 X: https://x.com/HartzellsHVAC Facebook: facebook.com/hartzellsheatair LinkedIn: Dave Hartzell Built on trust. Backed by warranty. Designed for comfort.

  2. 18h ago

    The Furnace Fix She Rehearsed in Her Head Before It Broke

    She had the phone in her hand for twenty minutes before she dialed. It was the second week of August, one of those stretches where it doesn't drop below eighty at night. Brick ranch house on the edge of town, built in the seventies, low ceilings and a hallway return that whistles. She was a retired widow living alone, and the outdoor unit had been humming without starting since the afternoon before. She told me later she'd rehearsed the call. Not once. A dozen times, maybe more, lying in bed with a box fan going. Here's what she rehearsed. She pictured me walking out to the unit, coming back in, and telling her it was something small. She pictured the number being low. She played that scene over and over, and every time she played it, it felt a little better. Then I actually showed up, and the scene didn't match. It wasn't a disaster. It was a part, a fair amount of labor, and a conversation about the age of the system. But it wasn't the small number she'd been picturing, and you could watch it land on her. Her shoulders went up. She stopped asking questions. She said "okay" to everything in a voice that meant she wasn't okay with any of it. I've seen that face for 47 years. I used to think it was about money. Sometimes it is. A lot of the time it's something else. Same week, different house. A man about the same age, an old farmhouse with a heat pump that had quit on him. He'd rehearsed too. But he'd rehearsed different things. He had a notepad on the kitchen table with three questions on it. What's wrong with it. What are my choices. What happens if I wait. He'd thought about who he'd call for a second opinion, and what he'd say if the answer was more than he had. His news was worse than hers. He was calmer. That stuck with me for a long time before I found out somebody had studied it. Core line: "The ones who rehearsed how the situation would actually unfold, step by step, coped better and felt less upset than the ones who dwelt on how they wanted it to end." Give Us A Shout Thanks for tuning in to Hartzell's Heat & Air, HVAC in Kingfisher and central Oklahoma. From Kingfisher to coast-to-coast consulting, we design, install, and maintain smart, efficient systems that deliver year-round comfort. We're family-run and powered by 47 years of experience. Whether it's AI-powered thermostats, geothermal systems, or classic tune-ups, we deliver upfront pricing, expert care, and warranties that back it all up. 🛠️ Book Online: https://book.housecallpro.com/book/Hartzells-Heat--Air/4a569038b3dc460daf2d5f6497b18351?v2=true 🌐 www.hartzellsheatair.com 📞 (405) 375-4822 🚛 Trane Comfort Specialist • Mitsubishi Diamond Dealer • ClimateMaster Elite 🛡️ VIP Comfort Club • Remote Monitoring • Extended Warranties 📲 Follow us for tips, updates, and real-world installs: YouTube: @hartzellsheatair6003 X: https://x.com/HartzellsHVAC Facebook: facebook.com/hartzellsheatair LinkedIn: Dave Hartzell Built on trust. Backed by warranty. Designed for comfort.

  3. 2d ago

    What Really Taught Him the Heat Pump Was Not What He Believed

    He was standing next to his condenser with a new part still sealed in the plastic, looking at the unit like it had lied to him. It was the middle of July, one of those weeks where Kingfisher never cools off after dark. Brick ranch, built in the seventies, a newer outdoor unit sitting on an older pad. The homeowner was retired and handy. He's the kind of man who has kept his own mower running for forty years and is proud of it. His AC was humming outside and blowing warm air inside. This is a composite. I've had some version of this call more times than I can count over 47 years, so no one name goes with it. He told me right away that he knew what it was. The night before, he'd found a video about an outdoor unit that hums and won't start. He watched it start to finish. Then he watched it again. By his count, four times in a row at the kitchen table. "By the fourth time I could have taught it," he said. I believed that he felt that way. So that morning he drove to town, bought the part and went out to the unit. He got the service panel off and stopped. Nothing looked like the video. Different brand, different wire colors, the part in a different spot, and a label he didn't recognize. He set the panel down and called me. That was the right call, and I told him so. A capacitor can hold a charge after the power is off. That is not a place to learn by guessing. What stuck with me wasn't that he couldn't do it. It was how surprised he was. He had felt sure. The sureness was real. It just wasn't attached to anything that worked at his condenser. There's a study that explains that morning better than I can. Nate Kornell and Robert Bjork published it in 2008. They wanted to know how people learn to recognize a style, the kind of thing you can't memorize as a list. Core line: "I'll pull up a photo of another brand with the same problem and say, here's where it lives on this one, and here's where it lives on yours." Give Us A Shout Thanks for tuning in to Hartzell's Heat & Air, HVAC in Kingfisher and central Oklahoma. From Kingfisher to coast-to-coast consulting, we design, install, and maintain smart, efficient systems that deliver year-round comfort. We're family-run and powered by 47 years of experience. Whether it's AI-powered thermostats, geothermal systems, or classic tune-ups, we deliver upfront pricing, expert care, and warranties that back it all up. 🛠️ Book Online: https://book.housecallpro.com/book/Hartzells-Heat--Air/4a569038b3dc460daf2d5f6497b18351?v2=true 🌐 www.hartzellsheatair.com 📞 (405) 375-4822 🚛 Trane Comfort Specialist • Mitsubishi Diamond Dealer • ClimateMaster Elite 🛡️ VIP Comfort Club • Remote Monitoring • Extended Warranties 📲 Follow us for tips, updates, and real-world installs: YouTube: @hartzellsheatair6003 X: https://x.com/HartzellsHVAC Facebook: facebook.com/hartzellsheatair LinkedIn: Dave Hartzell Built on trust. Backed by warranty. Designed for comfort.

  4. 2d ago

    Why He Called Himself Hopeless, and What the Heat Pump Taught Him

    The filter came out of the return grille gray as an old wool sock, and she looked at it like it was something I had carried in with me. It was the third week of July, that stretch in Kingfisher County where the heat index is over a hundred by noon and does not let go until well after dark. Brick ranch house on the edge of a small town, built back in the seventies, ductwork in the attic, a split system that had done its job for a lot of summers. The homeowner was a retired schoolteacher. Her husband had always handled the house. He passed a couple of winters back, and since then she had not touched the thermostat except to push the arrow down when the living room got warm. The call came in as a no-cool. When I pulled the panel, the indoor coil was a solid block of ice. The suction line running out to the condenser had frost on it like a can of pop pulled out of a cooler. That story tells itself if you have done this long enough. Dirty filter, airflow chokes down, the coil gets too cold, moisture freezes on it, and the ice chokes the airflow even more. It feeds on itself until the house quits cooling. I switched the system from cool to fan only so the coil could start to thaw, and I asked her to come look at the filter slot with me. She would not come down the hall. She stood in the kitchen doorway and said, "I'm just not mechanical. Never have been." I tried again. I said it was just a filter, slides right in. She smiled and said, "That's for somebody who understands these things." She said some version of "I'm not mechanical" four times in forty minutes. I counted on the drive home. Core line: "And that belief had a cost I could measure: a frozen coil, a hot house, and a July emergency that a two-minute filter check would have prevented." Give Us A Shout Thanks for tuning in to Hartzell's Heat & Air, HVAC in Kingfisher and central Oklahoma. From Kingfisher to coast-to-coast consulting, we design, install, and maintain smart, efficient systems that deliver year-round comfort. We're family-run and powered by 47 years of experience. Whether it's AI-powered thermostats, geothermal systems, or classic tune-ups, we deliver upfront pricing, expert care, and warranties that back it all up. 🛠️ Book Online: https://book.housecallpro.com/book/Hartzells-Heat--Air/4a569038b3dc460daf2d5f6497b18351?v2=true 🌐 www.hartzellsheatair.com 📞 (405) 375-4822 🚛 Trane Comfort Specialist • Mitsubishi Diamond Dealer • ClimateMaster Elite 🛡️ VIP Comfort Club • Remote Monitoring • Extended Warranties 📲 Follow us for tips, updates, and real-world installs: YouTube: @hartzellsheatair6003 X: https://x.com/HartzellsHVAC Facebook: facebook.com/hartzellsheatair LinkedIn: Dave Hartzell Built on trust. Backed by warranty. Designed for comfort.

  5. 2d ago

    Memory Grows When You Pull It Out: The Repair He Never Forgot

    She opened the door before I got to it and said, "It's the same thing as last year, isn't it." It was the middle of July, that stretch in Kingfisher County where the wheat is long cut and the heat just sits on everything. A hundred and one on the porch thermometer by two in the afternoon. The house was a brick ranch, built sometime in the seventies, with the return grille low in the hallway wall about knee high. The homeowner was a retired schoolteacher who lived there alone. Inside it was eighty-six degrees and climbing. I should say up front: she is a composite. After 47 years, a lot of calls like this one run together into one kitchen and one hallway. But every piece of her I have seen more times than I can count. The system was running. That was what confused her. The blower was moving air, the outdoor unit was humming, and warm air was coming out of every register in the house. I pulled the return grille and there was the filter. Gray, matted, bowed in the middle from the blower pulling on it. Behind it, the indoor coil was a block of ice. Here is the part that stuck with me. I had been in that same hallway the summer before. Same filter, same frozen coil. And I had explained it. I remember explaining it well. I showed her the filter, told her how often to change it, told her what to do if the air ever turned warm while the unit was still running. She nodded the whole time. She said "okay" and "that makes sense" and "I'll remember that." She meant every word of it. Then a year went by, the filter loaded up again, and here I was. I don't blame her for that. I used to think the problem was the customer. Then I started thinking the problem was my explanation, so I made it clearer, slower, with better examples. It didn't change much. What changed my thinking was a study. Core line: "She called to ask where to buy the right size filter, because she had already put the cooling off and turned the fan on, and she wanted to make sure the next one fit." Give Us A Shout Thanks for tuning in to Hartzell's Heat & Air, HVAC in Kingfisher and central Oklahoma. From Kingfisher to coast-to-coast consulting, we design, install, and maintain smart, efficient systems that deliver year-round comfort. We're family-run and powered by 47 years of experience. Whether it's AI-powered thermostats, geothermal systems, or classic tune-ups, we deliver upfront pricing, expert care, and warranties that back it all up. 🛠️ Book Online: https://book.housecallpro.com/book/Hartzells-Heat--Air/4a569038b3dc460daf2d5f6497b18351?v2=true 🌐 www.hartzellsheatair.com 📞 (405) 375-4822 🚛 Trane Comfort Specialist • Mitsubishi Diamond Dealer • ClimateMaster Elite 🛡️ VIP Comfort Club • Remote Monitoring • Extended Warranties 📲 Follow us for tips, updates, and real-world installs: YouTube: @hartzellsheatair6003 X: https://x.com/HartzellsHVAC Facebook: facebook.com/hartzellsheatair LinkedIn: Dave Hartzell Built on trust. Backed by warranty. Designed for comfort.

  6. 2d ago

    The Repair He Was Sure He Could Handle Himself

    He met me at the end of the driveway with his hand up against the sun and gave me the verdict before I had the truck in park: it's got one more summer in it. Late May, the first real hot stretch of the year, the kind of week where every unit that was going to show its age shows it all at once. Brick ranch on the west side of Kingfisher, built in the seventies, with a condenser out back that went in about twenty-two years ago. The fellow who owns it is late sixties, retired, keeps a garden you can see from the road, and keeps his own equipment running the way men his age were raised to. He had already hosed off the fins. He had already reset the breaker once. He was telling me about the capacitor before I had the gauges out. He wasn't wrong about the capacitor. It was weak. The contactor was pitted. I swapped both and the unit came to life, and the air coming off the registers got cold, and he said, "There you go." Then I read the compressor amps. High, and climbing as it heated up. The coil had rust running down it like a bad paint job. The refrigerant was the old kind, which tells you the age without looking at the tag. Everything I could measure said this machine was running on borrowed time, and he was standing there happy as could be, because it was running. I told him what I saw. I've told hundreds of people what I saw. He nodded along, polite as you please, and said, "Well, it made it last year." He was right. It did. For a lot of years that conversation went one way. I'd lay out the numbers. He'd nod. I'd lay out more numbers. He'd nod again and say something about one more summer, and I'd drive off a little irritated, and somewhere around the first week of August my phone would ring and it would be him, in a hot kitchen, needing the biggest decision he'd make about that house to happen right now. Core line: "The forecast he's running on that condenser is the same forecast that has him putting out tomatoes at sixty-eight and planning a trip for the fall." Give Us A Shout Thanks for tuning in to Hartzell's Heat & Air, HVAC in Kingfisher and central Oklahoma. From Kingfisher to coast-to-coast consulting, we design, install, and maintain smart, efficient systems that deliver year-round comfort. We're family-run and powered by 47 years of experience. Whether it's AI-powered thermostats, geothermal systems, or classic tune-ups, we deliver upfront pricing, expert care, and warranties that back it all up. 🛠️ Book Online: https://book.housecallpro.com/book/Hartzells-Heat--Air/4a569038b3dc460daf2d5f6497b18351?v2=true 🌐 www.hartzellsheatair.com 📞 (405) 375-4822 🚛 Trane Comfort Specialist • Mitsubishi Diamond Dealer • ClimateMaster Elite 🛡️ VIP Comfort Club • Remote Monitoring • Extended Warranties 📲 Follow us for tips, updates, and real-world installs: YouTube: @hartzellsheatair6003 X: https://x.com/HartzellsHVAC Facebook: facebook.com/hartzellsheatair LinkedIn: Dave Hartzell Built on trust. Backed by warranty. Designed for comfort.

  7. 3d ago

    Bored Is Not Lazy: What a Slow Repair Taught Me About Attention

    She had the thermostat in her hand like it owed her an explanation. Second week of October, the first night the north wind means it. Brick ranch house west of Kingfisher, built in the seventies, a retired couple who have been in it since the kids were small. He is out in the shop. She does the calling. The furnace lit when the thermostat asked, blew warm for a minute, went lukewarm, shut down, and tried again. The house was fifty-eight degrees at six in the morning and the dog was under the blanket. Her words on the phone, and again at the door: "It never gave us any trouble." I believed her. That is usually the whole problem. I pulled the lower door. The filter was grey-brown and bowed into the blower compartment like a hammock. No date on the edge. Nobody writes a date. Her husband changes it "every so often," she said, and I did not argue, because every so often is honest. I slid it out and looked at the blower wheel. A quarter inch of felt on every vane. So here is what the furnace had been doing. The burners light, the blower comes on, and the blower cannot pull enough air across the heat exchanger because the filter is a wall. The temperature inside climbs, the high limit switch opens, the burners drop out. The blower keeps running, the furnace cools, the limit closes, and it tries again. Short cycling on limit. The furnace was protecting itself, and it had probably been doing it since September. In September you never see it. The first cycle or two gets the house warm enough and nobody is standing in the hall. On a twenty-eight degree night it cannot keep up, and the ritual becomes visible. I asked when the last tune-up was. She thought. "You came out when the air conditioner did that thing." That was three summers ago, and it was a repair, not a tune-up. Core line: "That morning I pulled the blower and cleaned the wheel, set the new filter with her standing right there, and let the furnace run a full cycle while she listened to it." Give Us A Shout Thanks for tuning in to Hartzell's Heat & Air, HVAC in Kingfisher and central Oklahoma. From Kingfisher to coast-to-coast consulting, we design, install, and maintain smart, efficient systems that deliver year-round comfort. We're family-run and powered by 47 years of experience. Whether it's AI-powered thermostats, geothermal systems, or classic tune-ups, we deliver upfront pricing, expert care, and warranties that back it all up. 🛠️ Book Online: https://book.housecallpro.com/book/Hartzells-Heat--Air/4a569038b3dc460daf2d5f6497b18351?v2=true 🌐 www.hartzellsheatair.com 📞 (405) 375-4822 🚛 Trane Comfort Specialist • Mitsubishi Diamond Dealer • ClimateMaster Elite 🛡️ VIP Comfort Club • Remote Monitoring • Extended Warranties 📲 Follow us for tips, updates, and real-world installs: YouTube: @hartzellsheatair6003 X: https://x.com/HartzellsHVAC Facebook: facebook.com/hartzellsheatair LinkedIn: Dave Hartzell Built on trust. Backed by warranty. Designed for comfort.

  8. 3d ago

    A Wandering Mind Is an Unhappy One, Even Beside a Heat Pump

    He nodded the whole time I was talking, and the next morning he called the office to ask what I said. It was the middle of August, the kind of afternoon where the attic is 140 degrees by two o'clock and every call that comes in is a no-cool. The house was a brick ranch from the nineties on a couple of acres outside Kingfisher, the sort with a long gravel drive and a trampoline in the side yard. The homeowner was a dad in his forties, home with two kids while his wife worked, and he met me at the door with a toddler on his hip and the house sitting at 84 inside. The outdoor unit was humming but the fan on top was not turning. That one I can usually call from the driveway. The condenser fan motor had seized, and the capacitor next to it was swollen like a soda can left in a hot truck. Two parts, one visit, cooling back on in under an hour. That was the easy part. The hard part was the compressor. While I had my meter on it, it was pulling well above its rated amps on start, every time. It ran, and it cooled, but it was working too hard to do it. That is the kind of thing a homeowner needs to know, because the fan I replaced that day was never the real story. The real story was that this unit had maybe a season left and he needed time to plan. So I told him. I stood by the unit with the panel still off and walked him through all of it. What a capacitor does. Why the fan quit. What the amp draw meant and why I cared about it. He stood there the whole time, toddler on his hip, nodding. "Yep." "Okay." "Makes sense." At one point the older kid came out to ask about a snack and he answered without turning his head and kept nodding at me. I packed up. He paid. I shook his hand and left. A good call, I thought. Core line: "The wandering rate stayed high across almost all of it, and it never dropped below about 30 percent for any activity except one, and that one does not come up on a service call." Give Us A Shout Thanks for tuning in to Hartzell's Heat & Air, HVAC in Kingfisher and central Oklahoma. From Kingfisher to coast-to-coast consulting, we design, install, and maintain smart, efficient systems that deliver year-round comfort. We're family-run and powered by 47 years of experience. Whether it's AI-powered thermostats, geothermal systems, or classic tune-ups, we deliver upfront pricing, expert care, and warranties that back it all up. 🛠️ Book Online: https://book.housecallpro.com/book/Hartzells-Heat--Air/4a569038b3dc460daf2d5f6497b18351?v2=true 🌐 www.hartzellsheatair.com 📞 (405) 375-4822 🚛 Trane Comfort Specialist • Mitsubishi Diamond Dealer • ClimateMaster Elite 🛡️ VIP Comfort Club • Remote Monitoring • Extended Warranties 📲 Follow us for tips, updates, and real-world installs: YouTube: @hartzellsheatair6003 X: https://x.com/HartzellsHVAC Facebook: facebook.com/hartzellsheatair LinkedIn: Dave Hartzell Built on trust. Backed by warranty. Designed for comfort.

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About

Looking for honest stories about people, not product reviews? You're in the right place.The Human Diagnostic isn't a how-to HVAC podcast. It's what a 45-year Master Technician notices about people after 90,000 service calls across gas plants, oil rigs, hospital preservation systems, high-rises, feedlots, walk-in freezers, and residential homes all over Central Oklahoma.Hosted by Dave Hartzell, each episode tells a real story from a real service call. Sometimes he's driving to the job and predicting what he's about to walk into. Sometimes he just left and he's still working through what he saw. Either way, the story turns out to be about more than HVAC.Topics you'll hear across the season:✅ The customer nobody wanted to take, and what changed when someone finally did✅ Why the person researching their broken AC at midnight isn't being difficult, they're scared✅ What 45 years of walk-ins, weddings, funerals, and broken water heaters teaches you about anxiety✅ The tech who can fix anything but can't explain it, and why the customer doesn't trust him✅ The review you can't place, the moment you never forget, the call that changed how you work✅ What gets lost when we treat people like tickets, and what gets found when we don'tWhether you fix things for a living, manage people who do, or just like good stories from someone who has been everywhere and met everybody, The Human Diagnostic gives you the part of the job that never shows up in an invoice.📍 Proudly based in Kingfisher and serving Edmond, Guthrie, Yukon, Mustang, Piedmont, Logan County, Canadian County, Blaine County, Major County, Garfield County, and the greater Oklahoma City metro area. Hartzell's Heat & Air blends old-school integrity with cutting-edge technology, from digital diagnostics to smart-home HVAC integrations.Connect with Hartzell's Heat & Air:📲 Facebook: facebook.com/hartzellsheatair🐦 X (Twitter): x.com/HartzellsHVAC▶️ YouTube: youtube.com/@hartzellsheatair6003💼 LinkedIn: linkedin.com/in/dave-hartzell-7a687515📧 Contact Us: office@hartzellsheatair.comEvery call is a story. Every story is a person.🔔 Subscribe to The Human Diagnostic and ride along.📞 Need HVAC help in Central Oklahoma? Call (405) 375-4822🌐 hartzellsheatair.com

Information

  • Creator
    Dave Hartzell's Heat & Air - Kingfisher,OK
  • Years Active
    2026
  • Episodes
    260
  • Rating
    Clean
  • Copyright
    © 2026 The Human Diagnostic
  • Show Website
    The Human Diagnostic