New Construction in Greene County So you have the blue prints to construct your dream home. Why not include the most efficient, high-end heating and cooling unit available on the market in your plans. Recently built homes come with a pride of ownership that previously-owned houses cannot beat. By installing a WaterFurnace geothermal system in your Greene County home, you extend that feeling to include your heating and cooling system. Adding a geothermal system in your recently constructed home means you can pass the cost into your monthly mortgage payment. The money you save in operating costs will generally balance out the increase in mortgage payment - which means you may see a positive cashflow!