Another thing that enters into the equation (Let's call it the search for the missing COLD!), is that when prices get as high as they did, people start looking for ways to conserve/save, and in doing so, take a variety of actions, like maybe buying a pellet stove. They may also put some more insualtion in an attic, they may check and make sure the doors/windows are closed and sealed, maybe put up some 3M film in rooms that see little use, or just make sure the door to an unused room is closed.
I know this doesn't apply to everyone who posts here, but folks need to keep in mind that it's the SUM of all of those actions.
My own example is our house. This summer we did a kitchen renovation that removed our familiar old, Vermont Castings wood stove from our kitchen. We installed our pellet stove in an adjacent large room (22X28). Many other things were done to the kitchen as well...new cabinets, island, granite, lights, etc. (Did I mention LIGHTS?).
So we're burning pellets...wife says "Man...that stove does a pretty good job!...it's 77deg in the kitchen, and I'm sweating in here!"...and she turns the stove off.
We used to have track lighting in the kitchen. It had 6 fixtures, with 40watt bulbs in each. We now have 13 "cans", each with a 75watt flood. Turn the lights off?...kitchen drops about 5 degrees in a few hours. (Getting my wife to turn the lights off is worthy of a whole new thread).
So my point is just that every home is different, and heating habits are different, and we sometimes don't think of some of the other things we may be doing to make our homes a bit more energy efficient.
As for you folks that are doing nothing different?...that have a4,400sqft house that you spent $15K for HHO last year?...and you're heating it with 1/2ton of pellets this year?
Share some of those secrets, will ya?...cuz I'm actually starting to leave the lights on too, since I never have to look at the power bill, but I DO have to look at my shrinking pile o' pellets
Jim