"The BE-Oilsaver brings almost as much as replacing the windows for 100,000 CHF!"
Reports customer Matthias Örhli to N-G partner Gregor von Drabich:
"Dear Gregor, I think the two winters were roughly comparable. Yes, the new windows cost a tiny bit more than two Oilsaver . J It is a block of 12 apartments. Six 3 1/2-room and six 4 1/2-room apartments each. Year of manufacture 1980. The old windows were double-glazed wooden windows, some of which were already drafty. We decided to replace all the windows on the entire block with triple-glazed plastic windows at the 2009 owners' meeting, which was finally completed in the fall of 2010. That cost pretty much CHF 100,000 for the whole block.
Here are the savings with windows (12.8%) and then with BE oil savers (11.4%):"
It is now obvious that after the fuel oil, gas is also optimized for combustion. Therefore, the BE gas saver was developed next: