New Construction in Green Bay So you have the blue prints to construct your dream home. Why not include the most dynamic, high-end heating and cooling unit available on the market in your plans. Newly built homes come with a pride of ownership that previously-owned houses cannot match. By installing a WaterFurnace geothermal system in your Green Bay home, you extend that feeling to include your heating and cooling system. Including a geothermal system in your recently constructed home means you can roll 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!