Well I'll tell you what, mate. Provide some REAL evidence, with proper controlled studies using accepted scientific methods, and I'll take you seriously. Right now you have two "case studies" that are not worthy of the name - simply stating "I've got it and it works" is NOT a case study!
As for the hospital scenario - they claim to have cut their consumption by 10-11% over the previous year. What were the comparative temperatures like? Warmer weather equals less fuel used. Show us the figures!
The Carshalton college one is laughable - week one, daily temp average was 0.7 degrees. Week 2, it was 1.2 degrees. Week 2 they used a little less gas. No s*&t Sherlock!
I've got no issues with anyone trying to make a living, but have some self-respect. You're an engineer, act like one, not like a snake-oil salesman.