Petersburg, Indiana, Geothermal Hulsman Refrigeration, Inc. is the best WaterFurnace geothermal contractor in Petersburg, Indiana. We'll help you understand all the benefits of geothermal heating and cooling. We’ll make sure your WaterFurnace system is properly installed, too. And when it comes time for service? Nobody in Petersburg does it better! Contact Hulsman Refrigeration, Inc. today. Like a little up-front look at the savings a WaterFurnace geothermal heating and cooling system can give you? Use our easy Geothermal Savings Calculator.