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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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★ ★ ★ ★ ★

"My experience was excellent. The furnace runs very quietly and before when it would come on and I was sleeping it came on so loud it would wake me up. I'm so pleased with Hartman Brothers. My AC stopped working I thought it had something to do with my thermostat but Hartman's checked things out and found out someone turned the power off in the garage."

— Carol Perkins
(Google Review)

★ ★ ★ ★ ★

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

— Ron N.
(Google Review)

★ ★ ★ ★ ★

"Caleb was very efficient and helpful to explain all the features on the heating & air system & all the operations."

— Russ W.
(Google Review)

★ ★ ★ ★ ★

"Friendly, polite, professional, everything that makes Hartman's great !"

— Joann W.
(Google Review)

★ ★ ★ ★ ★

"This was a great service call. The service mechanic was very efficient and did a great job."

— Donald S.
(Google Review)

★ ★ ★ ★ ★

"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
(Google Review)

★ ★ ★ ★ ★

"These people are Amazing I have never had any trouble at all. They are always there if you need them, anyone that comes is always respectable and caring about you. A great group of staff That's for sure I'm so happy we went with them for our needs."

— MaryJane L.
(Google Review)

★ ★ ★ ★ ★

"Hartman Brothers did a great job once again. They are always prompt, courteous and respectful. Any questions are answered and explanations are easy to understand. Thank you once again!"

— Deb W.
(Google Review)

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