New Construction in Southeast Missouri 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 satisfaction in ownership that previously-owned houses cannot beat. By adding a WaterFurnace geothermal system in your Southeast Missouri home, you extend that feeling to include your heating and cooling system. Adding a geothermal system in your recently built home means you can roll the cost into your monthly mortgage payment. The money you save in operating costs will most likely balance out the increase in mortgage payment - which means you may see a positive cashflow!