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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 Brothers has always provided excellent service. From installing a new AC/furnace system to their biannual maintenance visits - they are the best!"

Sharon R.
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"Hartman brothers has always given me great service. I feel comfortable knowing they are taking care of my heating and ac needs. Everyone is responsible, and I am very comfortable with all of the techs taking care of my maintenance even when I'm not home."

Shelly Kline
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"The job was done on time and the job looks great. Tha total price was very reasonable. Thanks to hartman brothers for a job well done."

Richard V.
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"Professional from start to finish. Arrived on time. Installation went smoothly. Faster than expected. Very helpful from the start. Answered all questions. Communication was excellent."

Michael T.
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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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"Service staff was friendly and answered any questions I had."

Ed C.
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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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"It was good to see Ked again. I have had confidence in him when he did maintenance work on my system in the past and I continue to today. Thanks, Ked!"

Paul N.
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