Geothermal Heating & Cooling: Cumberland County's Choice! To be completely honest, let's put it this way: more and more Cumberland County residents are finding out that geothermal is the smarter heating and cooling choice. And we're helping them see that. We're J. Zanes LLC. And we know all about the perks 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? To start with, Cumberland County is situated in an area with ideal ground conditions for geothermal installation. We've also got the kind of changing temperature highs and lows 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 ball park figure of what they'd be for your family. Learn more. Contact J. Zanes LLC, your Cumberland County, New Jersey geothermal authority.