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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 Bros representatives are wonderful! Caleb is super great at answering all my questions and explaining everything so I feel very much at ease. I definitely recommend Hartman Bros for heating and AC installation and servicing. Their employees are super polite and very helpful and pleasant! Great job as always!"

Renee C.
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"Always great service from our technician. He enjoys our dogs and continues to always provide top notch service! So glad we are part of the Hartman family."

Wendi C.
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"Pay to have furnace and air conditioner inspected each year. The technicians are knowledgeable and thorough with explaining all checked out."

Dennis L.
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"All of the Hartman Bros employees are very polite, helpful, efficient and courteous. They always have answers to my questions. Im very happy with Hartman Bros. Caleb did an excellent job, is very polite, efficient and I highly recommend Hartman Bros!!"

Renee Collins
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"I had an issue with my furnace, the technician responded timely to my home and quickly assessed the problem and fixed it. The technician was very courteous and helpful. I will definitely use this company again. 10/10"

Roy C.
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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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"Jim was very efficient did an excellent job was very friendly and polite. Excellent worker. Thank you."

Roger H.
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"Great pleasant staff from the initial phone call to the service tech! Friendly, knowledgeable, and conscientious."

Kimberly B.
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