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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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"Fast, professional, and friendly. Love this company!"

Iana K.
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"I've had Hartman's install new Bryant H/Vac systems in 2 houses now and I've been pleased with the outcome at both houses. They are local, on time and reasonably priced. I've had a couple minor problems and Hartman Bros treated me fairly and took care of the issues. You don't buy 2 complete H/Vac systems from someone you don't trust or has treated you unfairly."

Daniel Scheele
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"Hartman Brothers responded within hours of our furnace going out and gave us several options. They are always courteous and knowledgeable. We have done business with them for 20+ years."

Mindy Meyer
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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!!"

Renee Collins
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"I have used Hartman Brothers for many years. I have never had a problem. Top notch folks!"

John Wiesemann
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"Josh was very pleasant. He explained what happened with my Furnace in the cold weather and why it happened. He had the Furnace working again quickly."

Lisa B.
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"Great service, as usual. Ked was prompt and he is very experienced and knowledgeable."

Gene F.
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