Geothermal Heating & Cooling: Hartford County's Choice! To be perfectly honest, let's put it this way: more and more Hartford County residents are finding out that geothermal is the smarter heating and cooling choice. And we're helping them see that. We're Nero Air Conditioning and Heating. And we know all about the advantages of geothermal heating and cooling. After all, we've been putting in and servicing geothermal systems for a long time. What makes geothermal a no-brainer here? For starters, Hartford County is situated in a region with ideal soil conditions for geothermal installation. We've also got the kind of seasonal temperature extremes that let a geothermal system demonstrate its year-round comfort potentiality to best effect. Think about the savings, as well. Our Geothermal Savings Calculator can provide you with a good idea of what they'd be for your family. Learn more. Contact Nero Air Conditioning and Heating, your Hartford County, Connecticut geothermal authority.