Green-Home custom designed and hand-built, Worchester, MA.Heat provided by soapstone Tulikivi masonry heater. Passive solar design supplements wood heat. Southern-facing glass. Thermal mass, provided by stone flooring with deep concrete slab in dining area, reclaimed black granite counters, and Tulikivi, absorbs heat and slowly raises the temperature in the house on winter afternoons by several degrees. Three bedrooms, 2 1/2 bathrooms, study, guest loft.