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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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"Always a tremendous experience with Hartman Brothers. I have used them for more than 25 years and gotten to know their people more like friends/family than vendors... because that's exactly how they treat their customers! Always a pleasure to deal with and their work is exceptional as a bonus. Would give them 6 Stars if it was an option."

Scott S.
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"Very nice people and reasonably priced and such nice service techs would recommend to anyone."

Vicky S.
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"Great local company! Always on time and thorough in their service. Plus, just plain nice people."

Donna R.
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"Caleb did a wonderful job on replacing the coil on my A/C. Of course, there are always bumps in the road. But, Caleb handled everything professionally and was a Very Nice technician."

Karen L.
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"We've been using Hartman Brothers for many years to service our personal residence and also our church building. They are very friendly, professional, and reliable!"

Dave W.
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"The best place to use and work with. Also, Mario, is the kindest and best technician we have had since we have been using Hartmans!"

Kristen R.
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"Neb is great. Timely and through. Explains work performed in terms you can understand."

Thomas C.
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"Showed up at my door 4 hours after I called about my furnace not working. Very fast response! The tech was very friendly."

E. Rider
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