A geothermal loop installed under the basement slab of the house is connected to a sophisticated hydronic heating, cooling and domestic hot water system. A combination of thermostatically controlled zones, in-floor heating, dual air-handlers, heat-recovery ventilator with intake filtration, humidity control and outdoor sensor system provide optimum indoor comfort. Supplemental heating comes from traditional clean burning contra-flow masonry stoves and fueled with construction waste and felled trees from nearby. The geothermal system only operates during six months out of a year and during the other months, air-conditioning is almost completely unnecessary. A thermo-siphon night-time venting system offers natural cooling throughout the summer months.
Ellis Park House is an open-layout design filled with natural light. Materials include cork, reclaimed stone, birch and marine plywood, clay brick copper and Douglas Fir. There are two platforms with green-roofs. The third floor inhabitable roof-deck enables homeowners to enjoy beautiful views of the city.