His New Version- The new version is a large and colorful Digital Work Book with free updates on his research for 12 months and is much larger and detailed than any report he has published in the previous years. In addition to his previous notes since 1992, it now includes 10X the commentary, explanations, instructions, and details. 20X more color photos and detailed diagrams. This new version also includes three (3) geo-air systems which he is using at various facilities. Although all are geothermal and geo-air technology, all three are quite different in function with notes and detailed pro/con comments on each system. This valuable report is the most accurate, "real life" and successful usage of Low Grade Geothermal use, and will certainly become a very popular and profitiable Green energy source for 2018 and for decades to come. This is possibly the most realistic, economical, sustainable and the simplest technology to heat and cool homes or greenhouses. Whether you are a building contractor or a DIY consumer this well documented and detailed Report is a must. Digital Work Book (DWB) - The new "Citrus In The Snow" is now an easy-to-use DWB type PDF format, created by the staff at GreenCube Publishing. Immediate download and read... The DWB (PDF) offers much more use and flexibility than a conventional book. The reader can scroll fast, search automatically, enlarge and evenprint both photos and important text. All of this in addition to receiving a full 12 months of "free updates" and FAQ by Russ and from the GreenCube Research Institute within the books Update page. The Cheapest, Efficient Energy Source Wonder why he's now getting all the attention? Read his Report and you will understand. After you read his detailed Report of his actul use of 3 types of geo-air systems, you will wonder why it's not being used in every home and business in the US and globally. This graphic and illustrated workbook you will have all the information you need to beild your own geo-air system, or even begin your own geo-energy construction business. In addition to the easy, and profitable construction potential, see how anyone could easily build a "free energy" greenhouse anywhere and earn more than $100,000 per acre annually. Thank you in advance for helping yourself to free energy, and also for supporting Russ and his continued geo-air research. We publish the only current, and legally authorized digital version of the Finch publication (2010-2019) !! Free Geothermal Greenhouse Research Suppliment !!