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The concept of HVAC has been around for thousands of years. The ancient Romans and Greeks used channels under marble flooring to distribute heat. However, it was until 1902 that the modern A/C idea was launched by Willis Carrier. Today's systems have experienced tremendous technological upgrades that make them significantly different from the older ones. Let's explore the recent HVAC history that has contributed to that.

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HVAC technology , hvac industry , HVAC history , hvac upgrades , hvac trends , changes in hvac

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"Caleb did a wonderful job on replacing the coil on my A/C. Of course, there are always bumps in the road. But, Caleb handled everything professionally and was a Very Nice technician."

— Karen L.
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"Hartman Brother Heating & Air is the BEST!!!! When I have an issue they immediately come to help! There employees are very friendly, kind and courtious of your home. They are well trained and have the knowledge to fix the problems in a timely manner! Way to go Hartman Brothers!!!"

— Julie Chesney
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"On time and did a thorough cleaning and testing of my heating system. Very knowledgeable and explained everything regarding my thermostat. Friendly and professional looking forward to seeing him on our winter maintenance. "

— Joe D.
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"Technician was on time, professional and completed our HVAC service promptly. Would highly recommend Hartman Brothers!"

— Eric Korte
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"Jim was very efficient did an excellent job was very friendly and polite. Excellent worker. Thank you."

— Roger H.
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"As usual- excellent & friendly service. I would highly recommend this company."

— Tony Pohl
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"Very professional and thorough. That’s why we have partnered with them for over twenty years."

— Thomas F.
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"Ked was excellent, friendly from the start and extremely helpful. Because of how thorough he was, he fixed the problem but also discovered another potential problem and promptly fixed it as well."

— Casey Holt
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