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. 10h ago

    The Man Who Needed Me to Like Him More Than Fix the AC

    She stood at the bottom of the stairs, smiled at my tech, and said, "Oh, it's fine now," while the air coming down those stairs was warm enough to feel on your face. It was the end of June. Kingfisher had been sitting near a hundred for most of a week, the kind of stretch where the attic in a two-story house turns into an oven by two in the afternoon. The house was older, a farmhouse somebody had added a second floor to back in the eighties. Bedrooms upstairs, one return, ductwork running through an attic that never got enough insulation. The homeowner was a widow in her late sixties. Kind, polite, the kind of person who offers you iced tea before you get your boots wiped. She called because the outdoor unit had quit. My tech found a failed capacitor. Common part, quick fix. He swapped it, the condenser came up, the house started cooling downstairs, and he did what most techs do. He asked, "How's that feel?" She said, "Fine now. Thank you so much." He wrote it up and left. Four days later her son called the office. Mom's bedroom upstairs was running in the low eighties at night. She wasn't sleeping. She had told him it had been that way for two summers. So I went out myself. I asked her about it, gently, and she said something I have heard in some form for 47 years. She said, "I didn't want to be a bother. He was so nice, and he'd already fixed it." Here's the thing. She wasn't confused. She knew it was hot upstairs. She felt it every night. She chose not to say it, and I wanted to understand why a perfectly sensible person would choose to keep sweating. That's what sent me to a psychologist named Mark Leary. In 1995, Leary and his colleagues, Ellen Tambor, Sonja Terdal and Deborah Downs, published a paper with a long name about something they called the sociometer hypothesis. Core line: "Saying "it's still hot upstairs" sounded, in her ear, like saying "you didn't do a good job." And that felt like risking the warmth that had just been built in her kitchen." 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

    She Called Herself Stupid Over a Heat Pump Nobody Could Fix

    She met me at the back door holding the old filter out in front of her like it was evidence in a trial. It was the first real hot week of June, the kind of Kingfisher afternoon where the wind quits and the heat just sits on the porch and waits for you. The house was a brick ranch on the edge of town, built back in the seventies, with a newer system tucked in a closet off the garage. The homeowner was retired. Sharp, organized, the kind of person who has every grandkid's birthday written on the kitchen calendar in two colors of ink. Her problem was simple to describe. The house wasn't cooling, and the air coming out of the vents was barely moving. Before I got my bag set down, she said, "I know what you're going to find. I'm so sorry." I opened up the return. The filter in her hand was the one she'd pulled that morning, and it was gray, matted and bowed in the middle from the system pulling against it. Behind where it had been, the coil had a blanket of dust on it, and there was ice on the line coming out of the closet. That's a frozen coil from starved airflow. I see it every summer. It's one of the most ordinary calls I run. She apologized again while I was looking at it. Then again while I was writing. I counted later, and I think it was six or seven times in twenty minutes. Then she told me the part that actually mattered. She'd noticed the airflow dropping three days before. She almost didn't call, because she was embarrassed about the filter, so she ran box fans and hoped it would sort itself out. So the embarrassment didn't just cost her some comfort. It cost her three days of the system running iced up, which is three days of harder work on equipment that was already struggling. Core line: "She also had those students fill out measures of self-esteem, self-criticism, anxiety, depression and narcissism, and then she looked at how the answers lined up." 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. 18h ago

    Three Voices Said It Was Fine, So He Doubted His Own Heat Pump

    She had three bids fanned out on the kitchen table, and she had already decided, and she looked like she wished she hadn't. This is a composite. It's drawn from a lot of kitchens over 47 years, so don't go looking for the house. It was late October. First real cold snap of the fall in Kingfisher County, the kind of morning where everybody kicks the heat on at once and finds out what died over the summer. The house was a brick ranch outside of town, built sometime in the seventies. Low ceilings, one long hallway, a furnace in a closet off that hallway. The homeowner was a retired schoolteacher. Lived alone. Sharp. The kind of person who reads every line of a contract and underlines things. Her furnace had failed. It was old, the repair didn't make sense anymore, and she needed a replacement before the next cold front came through. So she did what you're supposed to do. She got three bids. One was mine. By the time I came back to go over mine, she'd already heard from everybody. Her son. Her sister. Two ladies from church. The neighbor across the road. And every single one of them said the same company name. Mine. Now you'd think I'd be happy about that. I was, for about a minute. Then she said something almost under her breath. She said, "I suppose it doesn't matter about the return." I asked her what she meant. She got a little embarrassed. She pulled out one of the other bids and pointed at a line. That contractor had written that the return air was undersized for the system and needed to be enlarged. My bid didn't say that. I hadn't caught it. I'd looked at the closet, sized the equipment, and moved on. She had noticed it. She'd read both bids side by side, the way a teacher grades papers. Her own eyes told her one bid saw something the other one missed. Core line: "What works is giving the customer what Asch's subjects got when it went right: one other voice, before the crowd's voice gets the last word." 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. 19h ago

    The Repair She Defended Only Because It Was Her Side

    He had the pen in his hand before I had finished the first page. It was the second week of January, the kind of cold where the wind comes across the wheat stubble and finds every gap in a house. The house was a brick ranch from the seventies, low ceilings, a gas furnace in a hall closet that had been there longer than some of my techs have been alive. The man who called was retired. His wife sat at the kitchen table with a cup of coffee she never drank. The furnace had been short cycling for two days, lighting and shutting down, lighting and shutting down, and that morning it quit for good. I found the reason fast enough. The heat exchanger had a crack in it. On a furnace that age, that is not a repair conversation. That is a replacement conversation, and a safety conversation first. So I shut the gas off to the furnace, explained why, and sat down at that table to go through what a new system would look like. He had already had one other company out. A crew from the city, he said. Nice enough young man. Left a quote on the counter. I started walking through my estimate. Equipment, sizing, what I'd measured, why I picked the size I picked. I got about two lines in. He put his hand flat on the table and said, "You're from Kingfisher. That's good enough for me." His wife nodded. The other quote stayed face down on the counter. Nobody had turned it over. Now, I am not going to pretend that didn't feel good. It did. I've spent a lot of years in this town. But driving home, it bothered me. He hadn't read my quote. He hadn't read theirs. He had decided on a zip code. And here is the uncomfortable part. If that other company had been from his town and I had been the outsider, the same instinct would have been working against me, and my quote would have been just as good. Core line: "On some charts the boys could give their own group the most money possible, as long as the other group got even more." 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. 19h ago

    He Stayed Up All Night So the Heat Pump Failure Wasn't His Fault

    She met me at the door before I got out of the truck, and the first thing she said was, "I already know what you're going to tell me." It was the second week of July, one of those afternoons where the heat comes up off the driveway and hits you in the face. The house was a brick ranch, built somewhere around the late nineties, with a system that was only a few years old. Good equipment. Sized right for the house, as far as I could tell from the driveway. The house was warm inside. Not dangerous, but the thermostat said 84 and climbing, and the air coming out of the registers was barely moving. She walked me to the hall closet and stood behind me while I opened it. She said, "I never kept up with it. I know. I never changed the filter, I never had anybody out. So this is on me." I pulled the filter. She was right about that part. It was gray, packed solid, bowed in the middle from the blower pulling on it. Behind it, the coil had iced over. Not a little frost. A block. Now, I've seen that a few thousand times. A choked filter starves the coil of air, the coil gets too cold, the moisture on it freezes, and pretty soon nothing gets through at all. It's one of the most common calls I run in July. So I told her what I tell everybody. Turn the cooling off, run the fan to let it thaw, put a fresh filter in, and then let me check it once it's clear. And here's the part that stuck with me. While the coil was thawing, she kept talking. She told me twice more that she never kept up with it. She told me the salesman who sold her the system said it would last twenty years, and she figured she'd ruined that already. She asked me if she'd bought the wrong kind of unit. Then, before I could answer, she said, "Well, it doesn't matter, I never maintained it anyway." She wasn't asking me a question. She was building a wall. Core line: "But when I hear somebody tell me three times in ten minutes that it's their fault, before I've said a word, that's not forgetting." 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. 22h ago

    He Felt 40 at 72 and Climbed Up to Fix the AC Himself

    The water stain on the hallway ceiling was the size of a dinner plate, and the man who owned it was already halfway up the attic ladder when I pulled in the drive. It was late July, one of those weeks where the south wind feels like somebody left an oven door open. Brick ranch house on the edge of town, built in the seventies, with a pull-down attic stair right in the middle of the hall. The homeowner was sixty, maybe a little past. Retired from the oil patch. Still mows his own yard and the widow's next door. Strong handshake, quick on his feet, and he'd tell you so before you asked. What failed was simple. The condensate line off the air handler had clogged, the pan underneath filled up, and with nothing up there to shut the system off, the water found the drywall. He'd already been up there twice that morning. Once to look, once with a shop vac. By noon that attic was well past 130 degrees, and he was headed up for trip number three. I asked him to let me go first. He laughed and told me he'd worked in hotter places than his own attic. I believe him. I also know what that heat does to anybody, no matter how they feel walking in. Up there I found the clog and a full pan. I also found the nameplate on the air handler. The manufacture date put it at about nineteen years old. The outdoor unit matched. Back down in the kitchen, I asked him how old he figured the system was. He said, "Oh, eight, maybe ten years." He wasn't fibbing. He remembered the install clear as day. He just remembered it as recent. His wife set him straight from the other room. It went in the year their first grandson was born. That grandson is driving now. I've heard some version of that conversation more times than I can count in 47 years. Nobody's lying. The clock in their head just isn't the one on the wall. Core line: "One way to read it, since Rubin's field is memory, is that the person you picture when you think "me" was built in earlier years, and that picture doesn't update every birthday." 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. 1d ago

    I Can Do This: The Heat Pump Moment That Rebuilt a Confidence

    He met me in the driveway holding a capacitor still in its plastic clamshell, and the first thing he said was, "I just need you to tell me why this didn't work." It was July. Third day of triple digits. A brick ranch on the edge of town, built in the seventies, the kind of house where every shelf in the garage is labeled and every tool has an outline drawn behind it on the pegboard. This is a composite. I've been in the trade 47 years, and I've met this man more times than I can count. Sometimes it's a woman. Sometimes it's a retired lineman, sometimes a farmer, sometimes a young guy who learned everything from videos. The details change. The driveway conversation doesn't. He had re-plumbed his own bathroom. He had rewired the shop. He rebuilt the transmission in his truck on a creeper in that same garage. So when the outdoor unit started humming and not running, he did what he always does. He looked it up, he ordered the part, and he went to work. The part he ordered was the wrong rating. It went in, the unit still hummed, and then it went quiet. By the time he called, the house had been without cooling for a little over three days. His wife had been sleeping on the couch under a box fan. I want to be careful here. I'm not telling that story to make fun of him. He was not a fool. He was a capable man doing what capable people do. And that is exactly the problem I want to talk about. Inside that cabinet is a part that can hold a charge after the power is off. He knew that, sort of. He'd read it. What he didn't have was the years of seeing what goes wrong when someone is sure of themselves on a hot day. He got lucky. Plenty of folks do. Some don't. Core line: "Their side: thermostat mode and setting, the filter, looking at the breaker once without resetting it over and over, writing down any code or sound, looking for water." 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. 1d ago

    The Heat Pump Story He Needed Someone Younger to Hear

    The coffee was still too hot to drink when he slid a folder across the kitchen table and said, "Tell me what lasts the longest." It was the second week of January, the kind of cold where the wind comes straight down out of Kansas with nothing in its way. A brick ranch house a few miles outside of town, built in the seventies, added onto twice. The heat pump outside had quit, and the house had been limping along on the backup heat strips for two days. The couple at that table were somewhere in their middle fifties. This is a composite, drawn from a lot of kitchens over 47 years, but I have sat at this exact table more times than I can count. The compressor was gone. Not a capacitor, not a contactor. The outdoor unit was around twenty years old and the indoor coil wasn't far behind it. Repairable, technically. Worth repairing, that was the real question. I laid out the honest options the way I always do. Put a compressor in the old unit and hope the rest holds. Replace the outdoor unit and coil with a solid, ordinary system. Or, since they had the land, talk about a geothermal loop. I expected the conversation I usually get. What's the cheapest way through this winter? How fast does the expensive one pay for itself? That isn't what happened. He opened the folder. Inside were the original papers on the house, a hand-drawn sketch of the property, and a note in his own handwriting showing where the septic lines ran. "Our daughter wants this place," he said. "Her kids are out here every weekend. I'd like to hand it over without a list of problems attached." His wife added, "Neither of us is going to be here forever. The loop would be, right?" Core line: "People who scored high on the questionnaire also reported more of those caring and teaching acts, and their life stories carried more of those themes." 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
    350
  • Rating
    Clean
  • Copyright
    © 2026 The Human Diagnostic
  • Show Website
    The Human Diagnostic