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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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"Tech was polite, professional, knowledgeable and worked quickly to resolve the issue with my furnace. I inquired about the root cause of this recurring problem and he kindly explained what was occurring to prevent the furnace from igniting, and what he had done to resolve the current issue, which I appreciated very much! As always, I remain a happy Hartman Bros. customer!"

Judith Vincenski
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"Hartman Brothers are the best people to work with, always dependable! Caleb helped us set up a schedule on our thermostat and helped us hook up our phones to the thermostat also!"

Jerry J.
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"Ked Snyder is an excellent representative for Hartman Brothers. He is couteous, thorough and professional. Very Satisfied with your service and Highly Recommend it!"

Greg Andrews
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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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"They were on time, cleaned up after themselves, and the quote they gave was exactly the amount charged. I would use them again and recommend them."

Karen Watson
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"Ked was excellent, friendly from the start and extremely helpful. Because of how thorough he was, he fixed the problem but also discovered another potential problem and promptly fixed it as well."

Casey Holt
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"Prompt service and response time. Job was too tricky for me to handle myself and, as expected, my technician handled it like a pro."

Matt N.
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"Always great! Friendly. Efficient. Respectful of house. Obviously experienced and good at what he does."

Dianne M.
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