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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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"Hartman was absolutly 100% thorough to ensure our HVAC issues were fixed after our new built home settled and 1st hard winter tested it. I love knowing Hartman is a phone call away to correctly fix and solve any heating and air condition needs."

— John Kravec
(Google Review)

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"The service agent (Jim) was very courteous and helpful in explaining what was happening and shared tips on how to keep it running efficiently. He was very thorough in checking output temps before he left. Thank you for being my go to service provider."

— Paul R.
(Google Review)

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"Hartman Brothers installed the HVAC system before we bought this home, and has always maintained it. When it was time to replace it after 32 years, we selected them to install & maintain this system as well."

— Jeff Eley
(Google Review)

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"They always let me know when they are on the way and were on time - actually early! Always friendly and professional."

— Joan G.
(Google Review)

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"Once again, technician was very nice. Completed work efficiently. No complaints."

— Dennis M.
(Google Review)

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

— Skott Y.
(Google Review)

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"Very satisfied with service arrival time and communication. I would recommend."

— Henry G.
(Google Review)

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"We were so impressed with our repairman! He explained everything very thoroughly of what repairs he needed to make to help our furnace to run more efficient. Also, when we called for a repairman, he was at our house within 30 minutes! WOW!"

— Jeffery M.
(Google Review)

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