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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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"Serviceman on time, friendly, polite, professional. I will recommend Hartman Bros. To anyone who asks if I know good company for heating/ac. Very glad I chose them."

Patricia Stine
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"The folks that work for Hartman are always the best! Very pleasant, respectful and very knowledgeable! Great experience with whoever comes!!!"

Mary L
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"The service man completed the maintenance on my Air Conditioner. He was on time, He checked the system, added a little Freon., cleaned the condenser, very efficient. Great job."

Richard R.
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"Hartmans installed my HVAC and ducts about 5 yrs ago and I've done the maintenance agreement every year. Every tech that has come out has been informational, professional, and thorough."

Terina C.
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"Jim, Did a great job on are heating and cooling system.Checked all items washed down heat pump. I would like to request Jim to return to check our system on the next 6 month check up."

David B.
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"He was great as usual! He was very knowledgeable and personable. The guys always do a great job, and , offer advice. Thanks!"

V. M.
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"Above and beyond. Hard to find people that take pride in their work. From the office to the field, this is a top notch company."

Kurt Drummond
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"Very polite man and got furnace ready for winter"

Edith V.
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