The WaterFurnace 5 Series 3D provides forced air heating & cooling and hydronic heat for radiant floors in one convenient package. It was engineered with leading edge components and takes efficiency to new levels. Compared to ordinary furnaces and air conditioners, 5 Series 3D can provide energy savings up to 70%. When coupled with today’s best thermostats and an integrated monitoring system, the 5 Series 3D will provide the finest in comfort and reliability. Best of all, this smart technology uses the earth as a free energy source.