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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 are quick and on time with everything working great. They keep my furnace working very well!"

Herbert G.
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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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"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
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"Very happy with service. From my original phone call to the technician arriving, all were professional, helpful and friendly. Reasonable prices. I will definitely use again."

Jackie Franze
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"I have them complete annual maintenance on my HVAC. Excellent service. Good value. Responsive when I need them. Professional staff."

James Cadoret
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"Very nice and efficient would highly recommend to anyone!"

Vicky S.
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"They are always fast and efficient. Never had to wait long for service. Today Brian did an outstanding job. Diagnosed the problem immediately and had the furnace up and running."

Joy Miller-Long
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"Always great service with Hartman brothers"

Cheryl K.
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