2. WFI is a pure play geothermal HVAC renewable energy company The market for products is exploding due to fossil fuel inflation 25 year old company with history of strong growth and profitability

3. Company has grown and made money in boom and bust markets Despite rapid growth, pays dividend yielding 3%+ Market leader in US and Canada in defensible niche

4. Manufactures and distributes geothermal HVAC units 90% of total sales Market leader in residential geothermal equipment sales in US & Canada

5. $10 million per year loop field installation company Installs geothermal loop fields all over US

8. Looks like an ordinary furnace Replaces furnace and air conditioner Blows air same temperature as conventional systems (100° winter/ 55° summer) Can be installed in any size building (mobile home to skyscraper)

9. Units use (55° F) temperature of the earth 5 feet below surface, dissipate heat in summer and absorb heat in winter. Accomplished by circulating pressurized water through hundreds of feet of polyethylene pipe, forming a giant radiator we call a geothermal loop.

10. The loop can take many different shapes depending on the landscape surrounding the building.

11. Works better than ordinary HVAC Costs 70% less to operate than existing units Cash flow positive immediately No ugly outdoor unit

12. Works better than ordinary HVAC Quieter Safer (no carbon monoxide or explosion risk) Lasts 24 years versus 15 for ordinary a/c

13. Incremental Cost:$12,500 Useful Life: 50 Yrs Maintenance Costs: $0 Cost per kWh: 1¢

14. Incremental Cost:$200,000 Useful Life: 25 Yrs Maintenance Costs: $12,500 Cost per kWh: 24¢

15. Incremental Cost:$200,000 Useful Life: 25 Yrs Maintenance Costs: $12,500 Cost per kWh: 24¢ Incremental Cost:$200,000 Useful Life: 25 Yrs Maintenance Costs: $12,500 Cost per kWh: 24¢

16. Systems sells best when monthly savings are greater than incremental payment Average home requires $12,500 incremental cost for geothermal vs. conventional

17. $12,500 = $75 monthly on 30 yr mortgage, $100 on 20 yr home equity loan Cash flow positive anytime/anywhere if: electric = $.13 or less natural gas = $1.25 or more

19. Sales to Canada and overseas up 50%+ TTM Driven by government and utility incentives Canada $3,500 to replace conventional units with geo UK Blue Skies program $2,000 £ per home South Korea/Australia/China/India/Pakistan

20. Weak US dollar fuels competitiveness 18% of sales are outside US

21. Focus on the Geothermal niche market Market share leader in residential singe family Highest efficiency products in the industry Dealer direct distribution provides higher support and margins Just in time assembler versus manufacturers

22. Profitable organic growth Continued emphasis on leading products and market support for residential geothermal niche Growing sales commercial to institutional geothermal market driven by high efficiency and turnkey support capability Possible bolt on acquisitions and collaborations Continued dividend payments

23. Pure play renewable energy company that makes money without subsidies Solid history of growth and profitability in good times and bad Simple balance sheet and business, easily understood and analyzed Simple and executable growth plan Capable of explosive growth as fossil fuel prices escalate