Geothermal Heating & Cooling: Elk Lake's Choice! To be completely honest, let's put it this way: more and more Elk Lake residents are discovering that geothermal is the most effective heating and cooling choice. And we're helping them see that. We're Kalkaska Pumbing & Heating Inc.. And we understand all about the benefits of geothermal heating and cooling. After all, we've been putting in and servicing geothermal systems for years. Why are more people switching to geothermal? For starters, Elk Lake is situated in an area with perfect ground conditions for geothermal installation. We've also got the kind of seasonal 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 give you a good idea of what they'd be for your family. Learn more. Contact Kalkaska Pumbing & Heating Inc., your Elk Lake, Michigan geothermal authority.