Hello everyone, If this isn't the right thread for this I apologize, but wanted to share a bit of info that I have. Due to OCD issues I need to know that the things I am doing to make my house more fuel efficient and cozy are working out. First thing I did in my house was install a fireplace insert (Regency I2400). Next, a new boiler and water heater. Then I added a new roof and insulated siding. At the same time I laid an entire new row of insulation into the attic, tripling the R-value from before. Lastly this August I had all the windows replaced with new Argon insulated glass windows. Judging by the amount of oil I am buying each month, it seems this is working out for me (Winter 2011 was a very mild winter). What more can I do at this point? I'm sure you have suggestions.