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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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"Service was on time and the service agent was personable and knowledgeable. I have used this company for over 15 years and would recommend them to everyone."

Donald Marvar
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"Always a tremendous experience with Hartman Brothers. I have used them for more than 25 years and gotten to know their people more like friends/family than vendors... because that's exactly how they treat their customers! Always a pleasure to deal with and their work is exceptional as a bonus. Would give them 6 Stars if it was an option."

Scott S.
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"My experience was excellent the technician explained very clearly what he did and how different parts worked. A+"

Bruce L.
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"All went well. Thanks for the fine service. "

James B.
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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!"

Greg Andrews
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"Caleb was very courteous and thorough on his routine check-up of our heating system. Thank you."

Ron N.
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"It was good to see Ked again. I have had confidence in him when he did maintenance work on my system in the past and I continue to today. Thanks, Ked!"

Paul N.
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"Very courteous and professional. They always take great care of us."

Chip S.
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