Hi. I came across this forum and thread when searching for how viable a geothermallly heated greenhouse is in Finland, where we live. We've had unheated, summer season, greenhouses in Finland for years but have been considering the geothermal option for our next one. So, and this is really directed to Saana, do you know of geothermal greenhouses that actually work in Finland? Do they keep the temperature above 0 all year round? If so, I'd love to know where I could get more details, or who to contact for more details. Any advice appreciated. Thanks. Jamie