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Geothermal Heating And Cooling: The Go-To System When Switching Out Your FurnaceGeothermal heating and cooling systems are the most energy-efficient home comfort systems you can buy. Rather than burning fossil fuels for heating or using ozone-depleting refrigerants for cooling, a geothermal heating and cooling system uses renewable (and free) heat from the earth.

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"A technician came out to perform an annual service call on air conditioning/heat pump. He also made a minor adjustment to thermostat programming . He was prompt and efficient and discussed future maintenance regular service options."

Judith B.
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"As always the technician was courteous, professional and informative. I will continue using Hartman Bros."

Tim B
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"Very polite man and got furnace ready for winter"

Edith V.
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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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" They have made repairs in the past and now do all my hvac maintenance. Truly a great company to deal with."

Robert Burns
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"Very courteous and professional. They always take great care of us."

Chip S.
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"Excellent service and very friendly service technician."

Mike Hamrick
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"Mario was a friendly, polite technician. He answered my questions to my satisfaction. In my opinion, he fits the profile of all technicians from Hartman’s who we have dealt with— friendly but always professional."

Sandra H.
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