$350.00 per month averaged over the year or is that average during the heating season? $350.00 per month during the heating season for 2000SF sounds about where most people would be. So it does not too bad. I would suggest getting temporary window sealing kits from a hardware / home depot / lowes type place. They consist of a double sided tape and shrink fit clear plastic sheet. You put the tape around the edge of the window on the molding, lay the plastic sheet and press onto the tape,and then use a hair dryer to shrink it tite giving you a wind tite see through window seal that you can easily remove in the spring when you want to open the windows.
Twisting on Life's Rope Me53 W53 M20 D21 D19 D16 BD 2-2013 D final 1-2015 _________________________ "Dream about tomorrow, Live for today, Learn from yesterday"