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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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"They call ahead - arrived not only on time but a bit early! The technician was polite and professional."

— Joan G.
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"The service man completed the maintenance on my Air Conditioner. He was on time, He checked the system, added a little Freon., cleaned the condenser, very efficient. Great job."

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"Josh was very prompt, polite, knowledgeable, thorough, and efficient. Hartman Brothers technicians always provide excellent customer service."

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"Above and beyond. Hard to find people that take pride in their work. From the office to the field, this is a top notch company."

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"Jim was very professional and nice. He helped explained everything to me with tips for the future. Much appreciated "

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"Serviceman on time, friendly, polite, professional. I will recommend Hartman Bros. To anyone who asks if I know good company for heating/ac. Very glad I chose them."

— Patricia Stine
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"I had an issue with my furnace, the technician responded timely to my home and quickly assessed the problem and fixed it. The technician was very courteous and helpful. I will definitely use this company again. 10/10"

— Roy C.
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"All of the Hartman Bros employees are very polite, helpful, efficient, and courteous. They always have answers to my questions. I'm very happy with Hartman Bros. Josh does an excellent job, is very polite, and efficient, and always answers any questions and explains to me so I understand. I highly recommend Hartman Bros!!"

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