Vernon NewsArmstrong couple operating geothermal greenhouse 'in the snow'Veggies in the snowIt’s mid-January, but for an Armstrong couple, figs are still growing on their trees. Dale and Chelsea Klages own and operate Greenhouse in the Snow, a low-cost, highly efficient geothermal greenhouse that allows crops to grow year-round. By combining low-grade geothermal heat with passive solar design, Finch was able to keep greenhouse temperatures above freezing through the winter with minimal operating costs. In addition to operating their Armstrong greenhouse, the couple now sells the infrastructure to others across the country. Operating costs average about $4 a day, covering exhaust fans, grow lights and the low-grade geothermal system.