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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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"Josh was friendly and explained what he did on the AC and furnace and in good condition for their respective season."

Rex C.
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"I appreciate my technician Dalton. He is very thorough and takes really good care of my HVAC. He is also very patient and kind. Thank you Dalton!"

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"Ked Snyder is an excellent representative for Hartman Brothers. He is couteous, thorough and professional. Very Satisfied with your service and Highly Recommend it!"

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Iana K.
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"We've been using Hartman Brothers for many years to service our personal residence and also our church building. They are very friendly, professional, and reliable!"

Dave W.
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"Great service ontime for my appt Gentleman was very friendly. He was very informative on what's going on with my unit. And I was happy with my experience with the company"

Kendra Wetzel
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"Josh was very courteous and professional. He took the time to explain to me and show me what was going on inside the furnace. I felt really bad that we needed to call him out on a Sunday but with the inside of the furnace iced up our air just wasnt working and he got us up and running in no time"

Dorothy Poling
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