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Energy Saver: Programmable Thermostat Upgrade
(continued ...) However, there is a limit to the number of blankets you can throw on top and not be smothered by the weight. Another choice for bed covers that I prefer is feather bed covers. These are also known as duvets, eiderdowns, federbetten and numerous other names. They are effectively a large (sometimes quilted) bag stuffed with hand sorted and washed goose down. The down is plucked from the soft underbelly of domestic geese. The fabric bag that contains the goose down is very tightly woven and does not allow the feathers to escape. Using winter fill federbetten, it's possible to lower your sleeping thermostat set point to 48 F (9 C) or lower with special provisions *6. This is the third step in energy reduction.
I have to admit that I have some recent European heritage. My family there makes a huge deal about who is to inherit the federbetten from their parents. These are expensive but the well made versions can last multiple generations. Fortunately, I had the opportunity to try federbetten. Unfortunately, I didn't get to inherit any. I had to buy my own. Without regard to the energy theme, federbetten are among the top ten best personal convenience investments I've ever made that also happen to be major energy reduction devices.
The other heating mode of operation that is worth talking about is the time when you are away from home. Honestly, you just need to keep the pipes and plumbing traps from freezing and keep your house plants alive. If your house is less than 40 years old then it should have enough envelope insulation that my usual recommendation of 52 F (11 F) is fairly safe while you are away or 48 F (9 C) with special provisions *6.