Growing Citrus in the Snow: Russ Finch’s Innovative Geothermal Greenhouses
In the frosty winters of Alliance, Nebraska, where temperatures can plummet to a bone-chilling 20°F (with a record low of -40°F/C), retired mailman Russ Finch has defied nature’s norms. Remarkably, he grows oranges, citrus fruits, figs, and pomegranates in his backyard greenhouse without relying on conventional heating methods. Instead, Finch taps into the Earth’s stable temperature, around 52 degrees in his region, harnessing the power of geothermal energy to create a warm oasis amid the winter snow.
A Geothermal Revelation
Russ Finch’s journey into geothermal heating began in 1979 when he and his wife incorporated it into their 4400-square-foot dream home to trim energy costs. Almost two decades later, Finch took this innovative approach further by adding a 16’x80′ greenhouse in his backyard. This greenhouse, resembling a pit greenhouse or walipini, was designed with the floor dug down 4 feet below the surface and a slanted roof optimized to catch the southern sun.
Harnessing Earth’s Warmth
The key to Finch’s success lies in tapping into the naturally warm underground air, which remains stable throughout the year. Plastic tubing laid beneath the yard captures this warmth, and with the help of one fan, the heated air is directed into the greenhouse, creating a climate suitable for cultivating warm-weather crops. This ingenious system ensures that even during the coldest Nebraska winter nights, Finch avoids relying on traditional heaters.
Affordable and Accessible
Sharing his passion for geothermal greenhouses, Russ Finch sells a report titled “Citrus in the Snow,” providing insights into his groundbreaking work. According to Finch, anyone can build a market-producing greenhouse for approximately $25,000, which is notably less than the cost of a conventional heating system for a traditional greenhouse. This democratization of geothermal technology opens the door for individuals to explore sustainable and cost-effective methods for year-round cultivation.
Conclusion
Russ Finch’s geothermal greenhouse showcases the power of innovation and sustainability in agriculture.
