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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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"Got a message they were on their way & arrived soon after & was well within the time frame they gave for the appointment"

— Roberta G.
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"Great pleasant staff from the initial phone call to the service tech! Friendly, knowledgeable, and conscientious."

— Kimberly B.
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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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"As always, Hartman Bros does service RIGHT! They are prompt, courteous, professional, clean and fairly priced for all services we've ever had completed. We were introduced to them in 1998 when we first used their services and have been faithfully returning for every Heating and Air need, including the building of 2 new homes. They are stellar performers providing excellence at a time when mediocrity has been touted as the norm in our society. They go well above and beyond in all they do."

— Sheila Skinner
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"We love the professionalism Ked exhibits . Very thorough and keeps us informed if there is (or isn't) a problem."

— Cindy W.
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"Replaced furnace and air conditioner, high quality service, very professional, recommendation 100%"

— Paul G.
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"Friendly service excellent communication! They even came earlier for the appointment which worked out perfect !!"

— Chris B.
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"Very polite man and got furnace ready for winter"

— Edith V.
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